Curriculum Vitae

ASSOCIATE PROF. IR. DR. LIM KOK SING

Associate Professor
  • Photonics Research Centre (Prc)
    Photonics Research Centre
  • kslim
  • 60379677022

BIOGRAPHY

Kok-Sing Lim received his B.Eng in Telecommunication from the Faculty of Engineering, University of Malaya in 2008 and his Ph.D. in Physics from the same university in 2012. Currently, he is an Associate Professor at Photonics Research Centre, University of Malaya. His research interests include Fiber Bragg Grating (FBG), Optical Measurement and Instrumentation, Spatial Division Multiplexing Technology and medical laser devices. He is the associate editor of IEEE Trans. on Instrumentation and Measurement, a corporate member of Institute of Engineers Malaysia (IEM), a registered Professional Engineer (Telecommunication) with the Board of Engineers Malaysia (BEM) and a senior member of IEEE. He was given the ICO/ICTP Gallieno Denardo Award in 2020.

AREAS OF EXPERTISE

  • OPTICAL AND PHOTONIC SYSTEMS
    Spatial mode excitation, mode conversion, Space Division Multiplexing
  • FIBRE OPTICS AND WAVEGUIDES
    Fiber photosensitivity and glass treatment.
  • DEVICE PHYSICS AND SIMULATION
    Micro-photonics, Fibre Bragg Grating, Extreme temperature sensor

ACADEMIC QUALIFICATION

  • PhD(2012) (UM), (PHD IN APPLIED PHYSICS (PHOTONICS/OPTICS))
    Universiti Malaya (UM)
  • B.eng(2008) (UM), (BACHELOR OF ENGINEERING (TELECOMMUNICATION))
    Universiti Malaya (UM)

ADMINISTRATIVE DUTIES

  • Committee Members
    02 Jan 2024 - 31 Dec 2024 (Institute for Advanced Studies (IAS), Institute for Advanced Studies (IAS))
  • Editorial Member Integrated Optics and Lightwave : An International Journal
    05 Apr 2014 - present (International)
  • Assessment Committee - M Tech Programme (Material Science)
    24 Jan 2014 - present (Department of Physics, Faculty of Science)
  • Assessment Committee - M Tech Programme (Applied Physics)
    24 Jan 2014 - present (Department of Physics, Faculty of Science)
  • Committee Members
    03 Jan 2022 - 30 Dec 2022 (Photonics Research Centre (Prc), Photonics Research Centre)
  • Committee Members
    03 Jan 2022 - 30 Dec 2022 (Photonics Research Centre (Prc), Photonics Research Centre)
  • Committee Members
    03 Jan 2022 - 30 Dec 2022 (Photonics Research Centre (Prc), Photonics Research Centre)
  • Committee Members
    03 Jan 2022 - 30 Dec 2022 (Photonics Research Centre (Prc), Photonics Research Centre)
  • Committee Members
    21 Jan 2022 - 27 Apr 2022 (University Malaya)
  • AJK
    20 Sep 2019 - 19 Sep 2020 (University Malaya)
  • AJK
    16 Aug 2019 - 15 Aug 2020 (University Malaya)
  • Chairman for a PD and CD at UMPEDAC
    25 Jun 2020 - 25 Jun 2020 (University Malaya)
  • Secretary
    07 Jan 2019 - 07 Jan 2020 (Photonics Research Centre, Deputy Vice-Chancellor (Research and Innovation))
  • Chairing a candidature defense / proposal defense at UMPEDC
    12 Dec 2019 - 12 Dec 2019 (University Malaya)
  • Committee
    17 Oct 2019 - 19 Nov 2019 (University Malaya)
  • Internal Examiner - PhD student (PRC)
    17 Oct 2019 - 17 Nov 2019 (Photonics Research Centre, Deputy Vice-Chancellor (Research and Innovation))
  • Internal Examiner - PhD student (PRC)
    31 Jul 2019 - 31 Oct 2019 (Photonics Research Centre, Deputy Vice-Chancellor (Research and Innovation))
  • External Examiner
    23 May 2019 - 23 May 2019 (University Malaya)
  • New MSc programme Committee - Optical Communication Technology
    02 Aug 2016 - 23 Dec 2016 (Photonics Research Centre, Deputy Vice-Chancellor (Research and Innovation))
  • Representative of PRC in the Academic Advisory Committee, IGS
    22 May 2014 - 25 Jun 2016 (University Malaya)
  • Assessor in Candidature Defense
    07 Apr 2016 - 07 Apr 2016 (University Malaya)
  • Committee Member (Curriculum review of MSc (Applied Physics) Programme at Dept of Physics)
    24 Mar 2014 - 18 Feb 2015 (University Malaya)
  • Coordinator
    02 Feb 2014 - 30 Dec 2014 (Department of Physics, Faculty of Science)
  • Supervisor for students undergoing industrial training
    01 Jun 2014 - 29 Aug 2014 (University Malaya)

MEMBERSHIPS

  • SPIE MEMBER, MEMBER
    2024 to present (International)
  • PROFESSIONAL ENGINEER, PROFESSIONAL ENGINEER
    2024 to 2024 (National)
  • ASSOCIATE EDITOR, CHIEF EDITOR/ EDITOR IN CHIEF
    Since 2021 (International)
  • ASSOCIATE EDITOR, ASSOCIATE EDITOR
    2018 to present (International)
  • INSTITUTE OF ENGINEERS MALAYSIA, CORPORATE MEMBER
    Since 2016 (National)
  • COMMITTEE MEMBER, COMMITTEE MEMBER
    2022 to 2022 (International)
  • PROFESSONAL ENGINEER (TELECOMMUNICATION), PROFESSIONAL ENGINEER
    2022 to 2022 (National)
  • SENIOR MEMBER OF IEEE, MEMBER
    2022 to 2022 (International)
  • MEMBER OF IEEE, MEMBER
    2021 to 2021 (International)
  • BOARD OF ENGINEERS MALAYSIA (BEM), PROFESSIONAL ENGINEER
    2017 to 2021 (University)
  • THE INSTITUTION OF ENGINEERS MALAYSIA (IEM), MEMBER
    2012 to 2021 (National)
  • INSTITUTE OF ELECTRICAL AND ELECTRONICS ENGINEERS (IEEE), MEMBER
    2012 to 2021 (International)
  • INTERNATIONAL JOURNAL OF NANO SCIENTIFIC NETWORKS AND NANOTECHNOLOGY, COMMITTEE MEMBER
    2018 to 2019 (International)
  • SCIENCE PUBLISHING GROUP, BOARD MEMBER
    2017 to 2019 (International)
  • OPTICAL SOCIETY OF AMERICA, MEMBERSHIP
    2013 to 2019 (International)

AWARD AND STEWARDSHIP

  • EXCELLENCE SERVICE AWARD
    University of Malaya, 2024 (University)
  • Silver medal
    Laman Teknologi Sdn Bhd, 2022 (International)
  • Silver medal
    Universiti Malaysia Pahang, 2021 (National)
  • Malaysia Technology Expo 2021 (Silver Medal)
    PROTEMP GROUP, 2021 (International)
  • ICO/ICTP Gallieno Denardo Award
    ICO / ICTP, 2020 (International)
  • Anugerah Cemerlang UM (ACUM) Excellent researcher - Young researcher (Science)
    UM , 2019 (University)
  • Laser-Driven Hot Needle Wtth Dynamic Temperature Control System for Percutaneous Hyperthermia Cancer Therapy - Bronze Medal
    PECIPTA 2019, 2019 (International)
  • Laser-Driven Hot Needle Wtth Dynamic Temperature Control System for Percutaneous Hyperthermia Cancer Therapy
    MIIEX 2019, UiTM Melaka, 2019 (National)
  • Enhanced dynamic range FBG accelerometer - Bronze Medal
    Indes 2019, Uitm Perak, 2019 (National)
  • Laser-Driven Hot Needle Wtth Dynamic Temperature Control System For percutaneous Hyperthermia Cancer Therapy - GOLD MEDAL
    INDES 2019, UiTM PERAK, 2019 (National)
  • SILVER AWARD (1RIISE 2018) - Ultrasensitive fiber-optics microphone for structural condition monitoring
    UNIVERSITY OF MALAYA, 2018 (International)
  • SILVER AWARD (1RIISE 2018) - LASER-DRIVEN HOT NEEDLE FOR TISSUE CAUTERIZATION AND PERCUTANEOUS HYPERTHERMIA CANCER THERAPY
    UNIVERSITY OF MALAYA, 2018 (International)
  • Contribution in 5 or more scientific papers review in 2015-2016
    Optical Society of America, 2017 (International)
  • Most Cited Sensors and Actuators A:Physical Articles - Current sensor based on microfiber knot resonator
    Elsevier, 2016 (International)
  • CERTIFICATE OF EXCELLENT SERVICE
    University of Malaya, 2016 (University)
  • CERTIFICATE OF EXCELLENT SERVICE
    University of Malaya, 2015 (University)
  • Few Mode Grating Sensor (Bronze) - PECIPTA 2015
    Ministry of Education, Malaysia, 2015 (International)
  • 24th International Invention, Innovation & Technology Exhibition - Silver
    The MINDS, 2013 (International)

PUBLICATIONS

Article in Journal
WoS
  1. Alias, M. A.; Ahmad, H.; Thambiratnam, K.; Samion, M. Z.; Sa'ad, M. S. M.; Lim, K. S.; Zulkifli, M. Z.; Mahmoodin, Z.; Bayang, L.; Ismail, M. F. (2024). Performance Comparison of a 3-D Printed Fiber Bragg Grating (FBG) Load Cell Sensor Based on the Influence of Different Infill Density and Pattern, IEEE SENSORS JOURNAL. 24(8), 12400-12412. doi:10.1109/JSEN.2024.3372145
  2. Udos, Waldo; Tan, Soon-Hao; Lim, Kok-Sing; Low, May-Lee; Wei, Heming; Ahmad, Harith (2024). Signal Amplification Study for Gold-Coated Tilted Fiber Bragg Grating With Avidin-Biotin Sandwich Assay in the Detection of SARS-CoV-2, IEEE SENSORS JOURNAL. 24(15), 23878-23885. doi:10.1109/JSEN.2024.3411030
  3. Yang, Hangting; Tan, Daryl; Ramalingam, Nimalrajh; Lim, Kok-Sing; Tan, Chee-Ghuan; Ahmad, Harith (2024). Enhancing data sparsity in spectral signals using wavelet decomposition for improved compression and storage efficiency, OPTICAL FIBER TECHNOLOGY. 86. doi:10.1016/j.yofte.2024.103848
  4. Dan, Jinxiao; Dang, Wenjie; Li, Zeren; Nan, Pengyu; Xin, Guoguo; Lim, Kok-Sing; Ahmad, Harith; Yang, Hangzhou (2023). Compact Harmonic Vernier Sensor Based on an In-Fiber FPI with Three Reflector System for Simultaneous Gas Pressure and Temperature Measurement, SENSORS. 23(8). doi:10.3390/s23084142
  5. Dang, Wenjie; Li, Zeren; Dan, Jinxiao; Nan, Pengyu; Xin, Guoguo; Lim, Kok -Sing; Ahmad, Harith; Yang, Hangzhou (2023). High sensitivity fiber Bragg grating (FBG) sensor based on hollow core silica tube (HCST) sensitization for gas pressure and temperature discrimination, OPTICAL FIBER TECHNOLOGY. 75. doi:10.1016/j.yofte.2022.103202
  6. Ee, Yen-Jie; Lim, Kok-Sing; Tey, Kok Soon; Yang, Hangting; Ooi, Cheong-Weng; Yang, Hangzhou; Ahmad, Harith (2023). Efficient reconstruction scheme with deep neural network for highly compressive sensing of fiber Bragg grating spectrum, TRANSACTIONS OF THE INSTITUTE OF MEASUREMENT AND CONTROL. 45(8), 1515-1524. doi:10.1177/01423312221149777
  7. Ee, Yen-jie; Kufian, Zieauddin; Lim, Kok-sing; Tey, Kok-soon; Ooi, Cheong-weng; Udos, Waldo; Osman, Zurina; Ahmad, Harith (2023). Highly sensitive vernier sensor based on Chirp Grating Fabry-Perot Interferometer (CG-FPI) for the strain detection in lithium polymer (LiPo) batteries, SENSORS AND ACTUATORS A-PHYSICAL. 350. doi:10.1016/j.sna.2022.114080
  8. Jin, Kezhen; LI, Zeren; Nan, Pengyu; Xin, Guoguo; Lim, Kok-Sing; Ahmad, Harith; Yang, Hangzhou (2023). Three-dimensional force-tactile sensors based on embedded fiber Bragg gratings in anisotropic materials, OPTICS LETTERS. 48(9), 2269-2272. doi:10.1364/OL.486484
  9. Jin, Kezhen; Li, Zeren; Nan, Pengyu; Xin, Guoguo; Lim, Kok-Sing; Ahmad, Harith; Yang, Hangzhou (2023). Fiber Bragg grating-based fingertip tactile sensors for normal/shear forces and temperature detection, SENSORS AND ACTUATORS A-PHYSICAL. 357. doi:10.1016/j.sna.2023.114368
  10. Li, Zeren; Dang, Wenjie; Dan, Jinxiao; Jin, Kezhen; Nan, Pengyu; Xin, Guoguo; Lim, Kok -Sing; Ahmad, Harith; Yang, Hangzhou (2023). High-sensitivity interferometric high-temperature strain sensor based on optical harmonic vernier effect, OPTICAL FIBER TECHNOLOGY. 79. doi:10.1016/j.yofte.2023.103361
  11. Luo, Dong; Li, Yuanyuan; Lim, Kok-Sing; Yang, Hangting; Ahmad, Harith (2023). Development of Fe-C film coated polymer optical fiber sensor for steel bar corrosion monitoring, MEASUREMENT. 210. doi:10.1016/j.measurement.2023.112561
  12. Sa'ad, M. S. M.; Ahmad, H.; Alias, M. A.; Zaini, M. K. A.; Lim, K. S.; Harun, S. W.; Grattan, K. T. V.; Rahman, B. M. A.; Brambilla, G.; Reduan, S. A.; Bayang, L.; Ismail, M. F. (2023). Surface-Mounted Tilt Sensor Using Fiber Bragg Grating Technology for Engineered Slope Monitoring With Temperature Compensation, IEEE SENSORS JOURNAL. 23(12), 12828-12837. doi:10.1109/JSEN.2023.3268649
  13. Sa'ad, Muhammad Syamil Mohd; Ahmad, Harith; Alias, Mohamad Ashraff; Zaini, Muhammad Khairol Annuar; Samion, Muhamad Zharif; Grattan, Kenneth T. V.; Rahman, B. M. Azizur; Brambilla, Gilberto; Sing, Lim Kok; Harun, Sulaiman Wadi; Bayang, Leonard; Reduan, Siti Aisyah; Thambiratnam, Kavintheran; Zulkifli, Mohd Zamani; Ismail, Mohammad Faizal (2023). Optical fiber Bragg grating-based pressure sensor for soil monitoring applications, OPTICAL ENGINEERING. 62(8). doi:10.1117/1.OE.62.8.086101
  14. Udos, Waldo; Ooi, Cheong-Weng; Goh, Benedict Kah Hong; Lim, Kok-Sing; Talib, Mohd Aizam; Illias, Hazlee Azil; Mishra, Akhilesh Kumar; Ahmad, Harith (2023). Ge-Sb-Se-Te -coated tilted fiber Bragg gratings sensor for the refractive index measurement of transformer oils, OPTICAL FIBER TECHNOLOGY. 79. doi:10.1016/j.yofte.2023.103336
  15. Ahmad, Harith; Alias, Mohamad Ashraff; Ismail, Mohammad Faizal; Ismail, Nor Najwa; Zaini, Muhammad Khairol Annuar; Lim, Kok Sing; Brambilla, Gilberto; Grattan, Kenneth T., V; Rahman, B. M. Azizur (2022). Strain Sensor Based on Embedded Fiber Bragg Grating in Thermoplastic Polyurethane Using the 3D Printing Technology for Improved Sensitivity, PHOTONIC SENSORS. 12(3). doi:10.1007/s13320-021-0646-1
  16. Alias, M. A.; Ismail, M. F.; Sa'ad, M. S. M.; Zaini, M. K. A.; Lim, K. S.; Grattan, K. T., V; Brambilla, G.; Rahman, B. M. A.; Reduan, S. A.; Ahmad, Harith (2022). A Hi h-Precision Extensometer System for Ground Displacement Measurement Using Fiber Bragg Grating, IEEE SENSORS JOURNAL. 22(9), 8509-8521. doi:10.1109/JSEN.2022.3159850
  17. Alias, Mohamad Ashraff; Ahmad, Harith; Samion, Muhamad Zharif; Sa'ad, Muhammad Syamil Mohd; Sing, Lim Kok; Grattan, Kenneth T. V.; Rahman, B. M. Azizur; Brambilla, Gilberto; Zaini, Muhammad Khairol Annuar; Bayang, Leonard; Ismail, Mohammad Faizal (2022). Highly sensitive temperature-independent FBG-based sensor embedded in thermoplastic polyurethane using 3D printing technology for the measurements of torsion, SENSORS AND ACTUATORS A-PHYSICAL. 346. doi:10.1016/j.sna.2022.113889
  18. Liu, Xin; Nan, Pengyu; Zhu, Jiajie; Li, Zeren; Dan, Jinxiao; Dang, Wenjie; Lim, Kok-Sing; Udos, Waldo; Ahmad, Harith; Liu, Xiaochong; Yang, Hangzhou (2022). Ultrasensitive parallel double-FPIs sensor based on Vernier effect and Type II fiber Bragg grating for simultaneous measurement of high temperature and strain, OPTICS COMMUNICATIONS. 508. doi:10.1016/j.optcom.2021.127717in
  19. Ooi, C. W.; Waldo, U.; Norazriena, Y.; Lim, K. S.; Tan, S. T.; Rozalina, Z.; Ahmad, H. (2022). L-cysteine grafted fiber-optic chemosensor for heavy metal detection, OPTICAL FIBER TECHNOLOGY. 71. doi:10.1016/j.yofte.2022.102938
  20. Ooi, Cheong-Weng; Low, May Lee; Udos, Waldo; Lim, Kok-Sing; Ahmad, Harith (2022). Novel Schiff base functionalized 80-?m tilted fiber Bragg grating chemosensor for copper(II) ion detection, OPTICAL FIBER TECHNOLOGY. 71. doi:10.1016/j.yofte.2022.102920
  21. Sa'ad, Muhammad Syamil Mohd; Ismail, Mohammad Faizal; Zaini, Muhammad Khairol Annuar; Grattan, Kenneth T. V.; Rahman, B. M. Azizur; Brambilla, Gilberto; Sing, Lim Kok; Ahmad, Harith (2022). Temperature-independent vibration sensor based on Fabry-Perot interferometer using a fiber Bragg grating approach, OPTICAL ENGINEERING. 61(3). doi:10.1117/1.OE.61.3.037101
  22. Tian, Qin; Xin, Guoguo; Lim, Kok-Sing; Ee, Yen-Jie; Xue, Fengfeng; He, Yudong; Zhu, Jiajie; Ahmad, Harith; Liu, Xiaochong; Yang, Hangzhou (2022). Optical Fiber Sensor With Double Tubes for Accurate Strain and Temperature Measurement Under High Temperature up to 1000 degrees C, IEEE SENSORS JOURNAL. 22(12), 11710-11716. doi:10.1109/JSEN.2022.3167950
  23. Abd Raziff, H. H., Tan, D., Tan, S. H., Wong, Y. H., Lim, K. S., Yeong, C. H., . . . Ahmad, H. (2021). Laser-heated needle for biopsy tract ablation: In vivo study of rabbit liver biopsy. Physica Medica-European Journal of Medical Physics, 82, 40-45. doi: 10.1016/j.ejmp.2021.01.067
  24. Ahmad, H., Zaini, M. K. A., Kamely, A. A., Samion, M. Z., Ismail, M. F., Lim, K. S., . . . Thambiratnam, K. (2021). Generation of four-wave mixing in molybdenum ditelluride (MoTe2)-deposited side-polished fibre. Journal of Modern Optics, 68(8), 425-432. doi: 10.1080/09500340.2021.1908636
  25. Ee, Y. J., Tey, K. S., Lim, K. S., Shrivastava, P., Adnan, S., & Ahmad, H. (2021). Lithium-Ion Battery State of Charge (SoC) Estimation with Non-Electrical parameter using Uniform Fiber Bragg Grating (FBG). Journal of Energy Storage, 40, 9. doi: 10.1016/j.est.2021.102704
  26. Ismail, N. N., Sa'ad, M. S. M., Ismail, M. F., Zaini, M. K. A., Lim, K. S., Grattan, K. T. V., . . . Ahmad, H. (2021). Biaxial 3D-Printed Inclinometer Based on Fiber Bragg Grating Technology. IEEE Sensors Journal, 21(17), 18815-18822. doi: 10.1109/jsen.2021.3090105
  27. Lim, K. S., Zaini, M. K. A., Ong, Z. C., Abas, F. Z. M., Salim, M. A. B., & Ahmad, H. (2021). Vibration Mode Analysis for a Suspension Bridge by Using Low-Frequency Cantilever-Based FBG Accelerometer Array. IEEE Transactions on Instrumentation and Measurement, 70, 8. doi: 10.1109/tim.2020.3018578
  28. Ooi, C. W., Lim, K. S., Udos, W., Ee, Y. J., Ismail, M., Zakaria, R., . . . Ahmad, H. (2021). Signal Demodulation for Surface Plasmon Resonance Tilted Fiber Bragg Grating Based on Root Sum Squared Method. IEEE Transactions on Instrumentation and Measurement, 70. doi: 10.1109/tim.2021.3125104
  29. Tan, D., Lim, K. S., Wong, Y. H., Abd Raziff, H. H., Tan, S. H., Sulaiman, N., . . . Yeong, C. H. (2021). Multivariate Regression Between Hounsfield Unit Shift, Tissue Temperature, and Tissue Contraction: A Feasibility Study of Computed Tomography Thermometry. Ieee Transactions on Instrumentation and Measurement, 70, 9. doi: 10.1109/tim.2021.3075019
  30. Udos, W., Ooi, C. W., Tan, S. H., Lim, K. S., Ee, Y. J., Ong, K. C., & Ahmad, H. (2021). Label-free surface-plasmon resonance fiber grating biosensor for Hand-foot-mouth disease (EV-A71) detection. Optik, 228, 7. doi: 10.1016/j.ijleo.2020.166221
  31. Ismail, N., Hafizi, Z. M., Ooi, C. W., Bin Zaini, M. K. A., Nizwan, C. K. E., Lim, K. S., Ahmad, H. (2020). Fiber Bragg Grating-Based Fabry-Perot Interferometer Sensor for Damage Detection on Thin Aluminum Plate. Ieee Sensors Journal, 20(7), 3564-3571. doi: 10.1109/jsen.2019.2959068
  32. Nazal, N. A. M., Tan, D., Lim, K. S., Yang, H. Z., Ahmad, H. (2020). Regenerated Chirped Grating-Michelson Interferometer as a Laser Beam Intensity Profiler for CO2 Laser. IEEE Transactions on Instrumentation and Measurement, 69(2), 559-564. doi: 10.1109/tim.2019.2901560
  33. Udos, W., Lee, Y. S., Lim, K. S., Ong, Z. C., Zaini, M. K. A., Ahmad, H. (2020). Signal enhancement of FBG-based cantilever accelerometer by resonance suppression using magnetic damper. Sensors and Actuators a-Physical, 304, 7. doi: 10.1016/j.sna.2020.111895
  34. Udos, W., Lim, K. S., Tan, C. L., Ismail, M., Ooi, C. W., Zakaria, R., & Ahmad, H. (2020). Spatial frequency spectrum of SPR-TFBG: A simple spectral analysis for in-situ refractometry. Optik, 219, 8. doi: 10.1016/j.ijleo.2020.164970
Others
  1. Hani Hareiza Abd Raziff, Daryl Tan, Kok-Sing Lim, Chai Hong Yeong, Yin How Wong, Basri Johan Jeet Abdullah, Norshazriman Sulaiman, Harith Ahmad, "A temperature-controlled laser hot needle with grating sensor for liver tissue tract ablation", IEEE Transactions on Instrumentation and Measurement, 2020, doi: 10.1109/TIM.2020.2978920.
  2. K. -S. Lim, M. K. A. Zaini, Z. -C. Ong, F. Z. M. Abas, M. A. M. Salim and H. Ahmad, "Vibration mode analysis for a suspension bridge by using low-frequency cantilever-based FBG accelerometer array," in IEEE Transactions on Instrumentation and Measurement, doi: 10.1109/TIM.2020.3018578.
  3. Muhammad Khairol Annuar Zaini, Yen-Sian Lee, Kok-Sing Lim, Nurul Asha Mohd Nazal, Hang-Zhou Yang, Harith Ahmad, Thermal characterization of phase difference among the LP modes in two-mode fibers based on numerical approach, Optik,Vol 207,pp164289,2020
  4. Qin Tian, Guoguo Xin, Kok-Sing Lim, Yudong He, Ji Liu, Harith Ahmad, Xiaochong Liu, and Hangzhou Yang, "Cascaded Fabry-Perot interferometer-regenerated fiber Bragg grating structure for temperature-strain measurement under extreme temperature conditions," Opt. Express 28, 30478-30488 (2020)
  5. Qin Tian, Hangzhou Yang, Kok-Sing Lim, Yudong He, Harith Ahmad, Xiaochong Liu, Temperature and strain response of in-fiber air-cavity Fabry-Perot Interferometer under extreme temperature condition, Optik, 165034, 2020
  6. Hang Zhou Yang, Mukul Chandra Paul, Shyamal Das, Anirban Dhar, Xue Guang Qiao, Nurul Asha Mohd Nazal, Kok-Sing Lim, and Harith Ahmad, "Regenerated grating produced in a multimaterial glass-based photosensitive fiber with an ultrahigh thermal regeneration ratio," Opt. Express 27, 4329-4337 (2019)
  7. M. K. A. B. Zaini, Y. Lee, K. Lim, M. M. Ali, N. A. M. Nazal and H. Ahmad, "Digital Matched Filtering (DMF) Technique for the Performance Enhancement of Few-Mode Fiber Bragg Grating Sensor," in IEEE Sensors Journal, vol. 19, no. 14, pp. 5653-5659, 2019.
  8. N. A. M. Nazal, D. Tan, K. Lim, H. Yang and H. Ahmad, "Regenerated Chirped Grating-Michelson Interferometer as a Laser Beam Intensity Profiler for CO Laser," in IEEE Transactions on Instrumentation and Measurement.
  9. NURUL-ASHA MOHD-NAZAL, KOK-SING LIM, YEN-SIAN LEE, MUHAMMAD AIZI MAT SALIM, HARITH AHMAD, "The influence of internal stresses in few-mode fiber to the thermal characteristics of regenerated gratings," Photonic Sensors, (In press), 2019
  10. Nurul Asha Mohd Nazal, Kok Sing Lim, Yen Sian Lee, Muhammad Aizi Mat Salim, Harith Ahmad, "Influence of Internal Stresses in Few-Mode Fiber on the Thermal Characteristics of Regenerated Gratings," Photonic Sensors, Volume 9, Issue 2, pp 162 169, June 2019
  11. Nurul Syahirah Aziz Jaafar, Kok-Sing Lim, Muhammad Khairol Annuar Zaini, Harith Ahmad, Suhaila Sepeai, Guan Hee Tan, Geok Chin Tan, Zulkifli Md. Zainuddin, "The surgical ablation on soft tissues using Ho:YAG laser with deviated beam fiber," Optical Fiber Technology, Vol 52, 101937, 2019,
  12. Qin Tian, Hangzhou Yang, Qiangzhou Rong, ZhongYao Feng, Ruohui Wang, Muhammad Khairol Annuar Bin Zaini, Kok-Sing Lim, Harith Ahmad, Pan Zhang, Xiangzi Ding, Kai Lu, Yudong He, "Highly sensitive micro-hygrometer based on microfiber knot resonator," Optics Communications, Volume 431, 2019, Pages 88-92
  13. Rongxin Tong, Hangzhou Yang, Kai Lu, Yen-Sian Lee, Kok-Sing Lim, Harith Ahmad, and Manli Hu, "1.3 m fiber grating in a thin-core fiber for LP01 LP11 mode converters and sensing ability," Appl. Opt. 58, 4358-4364 (2019)
  14. Yudong He, Hangzhou Yang, Kok-Sing Lim, Harith Ahmad, Zhongyao Feng, Pan Zhang, Qin Tian, Kai Lu, Zhao Han, Ji Liu, Discriminative measurement for temperature and humidity using hollow-core Fabry-Perot interferometer, Optical Fiber Technology, Volume 53, 102027, 2019,
  15. Zaini, M. K. A.; Lee, Y.-S.; Ismail, N.; Lim, K.-S.; Udos, W.; Zohari, M. H.; Yang, H.-Z.; Ahmad, H., In-fiber Fabry Perot interferometer with narrow interference fringes for enhanced sensitivity in elastic wave detection. Optical Fiber Technology 2019, 53, 102021.
  16. Daryl Tan, Kok-Sing Lim, Muhammad Khairol Annuar Zaini, Chai-Hong Yeong, Yin-How Wong, Hang-Zhou Yang, Harith Ahmad, "Phase derivative thermo-spatiogram for distributed temperature sensing based on chirped grating-Michelson Interferometer," Sensors and Actuators A: Physical, Volume 278, 2018, Pages 43-47,
  17. E. Vorathin, Z.M. Hafizi, A.M. Aizzuddin, K.S. Lim, "A highly sensitive multiplexed FBG pressure transducer based on natural rubber diaphragm and ultrathin aluminium sheet," Optics & Laser Technology, Volume 106, Pages 177-181, 2018,
  18. Kai Lu, Hangzhou Yang, Kok-Sing Lim, Harith Ahmad, Pan Zhang, Qin Tian, Xiangzi Ding, and Xueguang Qiao, "Effect of two annealing processes on the thermal regeneration of fiber Bragg gratings in hydrogenated standard optical fibers," Appl. Opt. 57, 6971-6975 (2018)
  19. M. K. A. Zaini, Y. Lee, K. Lim, N. A. M. Nazal, H. Yang and H. Ahmad, "Enhanced Optical Delay Line in Few-Mode Fiber Based on Mode Conversion Using Few-Mode Fiber Bragg Gratings," in IEEE Journal of Quantum Electronics, vol. 54, no. 5, pp. 1-7, Oct. 2018
  20. M.K.A Zaini, M.H.Lai, M.R. Islam, K. S. Lim, H. Ahmad, "Cancellation of birefringence in DBR laser through principal axis offset by a rotation of 90 ," Indian J Phys (2018).
  21. Nurul Asha M OHD NAZAL*, M an-Hong LAI, Kok-Sing LIM, Dinusha Serandi GUNAWARDENA, Wu-Yi CHONG, Hang -Zhou YANG, Harith AHMAD, "Demarcation energy properties of regenerated fiber Bragg grating sensors in few-mode fibers," Optica Aplicata, Vol 4, Vo 2, 2018
  22. Nurul Syahirah Aziz Jaafar, Suhaila Sepeai, Kok-Sing Lim, Muhammad Khairol Annuar Zaini, Harith Ahmad, Guan Hee Tan, "A novel waveguide design that produces an elongated laser beam output for soft tissue ablation," Optik, Volume 164, 2018, Pages 561-566,
  23. Pan Zhang, Hangzhou Yang, Kok-Sing Lim, Harith Ahmad, Qiangzhou Rong, Qin Tian, and Xiangzi Ding, "Temperature-independent hygrometry using micromachined photonic crystal fiber," Appl. Opt. 57, 4237-4244 (2018)
  24. Xiang Zi Ding, Hang-Zhou Yang, Xue-Guang Qiao, Pan Zhang, Oin Tian, Qiang Zhou Rong, Nurul Asha Mohd Nazal, Kok-Sing Lim, and Harith Ahmad, "Mach Zehnder interferometric magnetic field sensor based on a photonic crystal fiber and magnetic fluid," Appl. Opt. 57, 2050-2056 (2018)
  25. Yen-Sian Lee, Kok-Sing Lim, Muhammad Khairol Annuar Zaini, and Harith Ahmad, "Mode Splitting Based on Polarization Manipulation in Few-Mode Fiber," IEEE Journal of Quantum Electronics, Vol 54, No 4, 6800306, 2018
  26. Dinusha Serandi Gunawardena, Man-Hong Lai, Kok-Sing Lim, Harith Ahmad,"Thermal decay analysis of fiber Bragg gratings at different temperature annealing rates using demarcation energy approximation," Optical Fiber Technology, Volume 34, March 2017, Pages 16 19
  27. E Vorathin, ZM Hafizi, SA Che Ghani, JP Siregar, KS Lim, "FBGs Real-Time Impact Damage Monitoring System of GFRP Beam Based on CC-LSL Algorithm," International Journal of Structural Stability and Dynamics, 1850075, 2017
  28. Foo Wei Lee, Hwa Kian Chai, Kok Sing Lim, Characterizing concrete surface notch using Rayleigh wave phase velocity and wavelet parametric analyses, Construction and Building Materials, Vol 136, 1 April 2017, Pages 627-642
  29. Hui Liu, Hangzhou Yang, Xueguang Qiao, Yongqiang Wang, Xiaochong Liu, Yen-Sian Lee, Kok-Sing Lim, Harith Ahmad, "Curvature and Temperature Measurement Based on a Few-Mode PCF Formed MZI and an Embedded FBG" Sensors, Vol. 17, No 8, pp 1725, 2017.
  30. JUNYING ZHANG, XUEGUANG QIAO, HANGZHOU YANG, RUOHUI WANG, QIANGZHOU RONG, KOK-SING LIM, HARITH AHMAD, "All-fiber Magnetic Field Sensor Based on Tapered Thin-core Fiber and Magnetic Fluid," Applied Optics, Vol. 56, Issue 2, 2017
  31. Man-Hong Lai, Kok-Sing Lim, Dinusha Serandi Gunawardena, Yen-Sian Lee, Harith Ahmad, "CO 2 Laser Applications in Optical Fiber Components Fabrication and Treatment: A Review," IEEE Sensors, Vo; 17, No 11, 2961-2974, 2017
  32. Muhammad Khairol Annuar Zaini, Yen-Sian Lee, Kok-Sing Lim, Nurul Asha Mohd Nazal, Mohd Hafizi Zohari, and Harith Ahmad, "Axial stress profiling for few-mode fiber Bragg grating based on resonant wavelength shifts during etching process," J. Opt. Soc. Am. B 34, 1894-1898 (2017)
  33. NURUL ASHA MOHD NAZAL, KOK-SING LIM,*, MUHAMMAD KHAIROL ANNUAR ZAINI, HANG-ZHOU YANG, HARITH AHMAD, "Formation of enhanced regenerated grating in few-mode fiber by CO laser pre-treatment, Applied Optics, 2017
  34. Pan Zhang, Hangzhou Yang, Yupeng Wang, Hui Liu, Kok-Sing Lim, Dinusha S. Gunawardena, and Harith Ahmad, "Strain measurement at temperatures up to 800 C using regenerated gratings produced in the highGe-doped and B/Ge co-doped fibers," Appl. Opt. 56, 6073-6078 (2017)
  35. Y. S. Lee, K. S. Lim, M. K. A. Zaini and H. Ahmad, "LP11 LP01 Mode Conversion Based on an Angled-Facet Two-Mode Fiber," in IEEE Photonics Technology Letters, vol. 29, no. 12, pp. 1007-1010, June15, 15 2017.
  36. Dinusha Serandi Gunawardena, Man-Hong Lai, Kok-Sing Lim, Amin Malekmohammadi, Harith Ahmad, Fabrication of thermal enduring FBG sensor based on thermal induced reversible effect, Sensors and Actuators A: Physical, Volume 242, 1 May 2016, Pages 111-115
  37. Dinusha Serandi Gunawardena, Man-Hong Lai, Kok-Sing Lim, and Harith Ahmad, "Impact of CO2 Laser Pretreatment on the Thermal Endurance of Bragg Gratings," Journal of the Optical Society of Korea, Vol.20, No.5, 25 October 2016
  38. Foo Wei Lee, Hwa Kian Chai and Kok Sing Lim,"Assessment of Reinforced Concrete Surface Breaking Crack Using Rayleigh Wave Measurement,' Sensors, 16(3), 337, 2016
  39. Foo Wei Lee, Kok Sing Lim, Hwa Kian Chai, Determination and extraction of Rayleigh-waves for concrete cracks characterization based on matched filtering of center of energy, Journal of Sound and Vibration, Volume 363, 17 February 2016, Pages 303-315,
  40. Gunawardena, D. S., Mat-Sharif, K. A., Lai, M. H., Lim, K. S., Tamchek, N., Omar, N. Y. M., Emami, S. D., Muhamad-Yasin, S. Z., Zulkifli, M. I., Yusoff, Z., Yang, H. Z., Abdul-Rashid, H. A., Ahmad, H. 2016. Thermal Activation of Regenerated Grating in Hydrogenated Gallosilicate Fiber Ieee Sensors Journal
  41. Hui Liu, Hang Zhou Yang, XueGuang Qiao, ManLi Hu, ZhongYao Feng, Ruohui Wang, Qiangzhou Rong, Dinusha S. Gunawardena, Kok-Sing Lim, Harith Ahmad, Strain measurement at high temperature environment based on Fabry-Perot interferometer cascaded fiber regeneration grating, Sensors and Actuators A: Physical, Volume 248, 1 September 2016, Pages 199-205,
  42. K. S. Lim, M. R. Islam, Y. S. Lee, H. Z. Yang and H. Ahmad, "LP01 LP11 Cross-Mode Interference in a Chirped Grating Inscribed in Two-Mode Fiber," in IEEE Journal of Quantum Electronics, vol. 52, no. 6, pp. 1-6, June 2016.
  43. Lai, M. H., Gunawardena, D. S., Lim, K. S., Machavaram, V. R., Lee, S. H., Chong, W. Y., Lee, Y. S., Ahmad, H. 2016. Thermal activation of regenerated fiber Bragg grating in few mode fibers Optical Fiber Technology
  44. Md. Rajibul Islam, Dinusha Serandi Gunawardena, Yen-Sian Lee, Kok-Sing Lim, Hang Zhou Yang, Harith Ahmad, Fabrication and characterization of laser-ablated cladding resonances of two different-diameter photosensitive optical fibers, Sensors and Actuators A: Physical, Volume 243, 1 June 2016, Pages 111-116
  45. Tan Sin Tee, Tan Chun Hui, Chong Wu Yi, Yap Chi Chin, Akrajas Ali Umar, Ginting Riski Titian, Lee Hock Beng, Lim Kok Sing, Muhammad Yahaya, Muhamad Mat Salleh, Microwave-assisted hydrolysis preparation of highly crystalline ZnO nanorod array for room temperature photoluminescence-based CO gas sensor, Sensors and Actuators B: Chemical, Volume 227, May 2016, Pages 304-312
  46. Y. S. Lee; K. S. Lim; M. Islam; M. H. Lai; H. Ahmad, "Dynamic LP01-LP11 Mode Conversion by a Tilted Binary Phase Plate," in Journal of Lightwave Technology ,(In press) 2016
  47. Ali, M.M.; Islam, M.R.; Kok-Sing Lim; Gunawardena, D.S.; Hang-Zhou Yang; Ahmad, H., "PCF-Cavity FBG Fabry-Perot Resonator for Simultaneous Measurement of Pressure and Temperature," in Sensors Journal, IEEE , vol.15, no.12, pp.6921-6925, Dec. 2015
  48. Ali, M.M.; Yongmin Jung; Kok-Sing Lim; Islam, M.R.; Alam, S.-U.; Richardson, D.J.; Ahmad, H., "Characterization of Mode Coupling in Few-Mode FBG With Selective Mode Excitation," in Photonics Technology Letters, IEEE , vol.27, no.16, pp.1713- 1716, Aug.15, 15 2015
  49. DINUSHA S. GUNAWARDENA, KHAIRUL A. MAT-SHARIF, NIZAM TAMCHEK, MAN-HONG LAI, NASR Y. M. OMAR, SIAMAK D. EMAMI, SHAHRIN Z. MUHAMAD-YASIN, MOHD I. ZULKIFLI, ZULFADZLI YUSOFF, HAIRUL. A. ABDUL-RASHID, KOK-SING LIM, AND HARITH AHMAD, "Photosensitivity of gallium- doped silica core fiber to 193 nm ArF excimer laser," Applied Optics, Vol. 54, Issue 17, 2015
  50. Dinusha S. Gunawardena, Man-Hong Lai, Kok-Sing Lim, Muhammad M. Ali, and Harith Ahmad, "Measurement of grating visibility of a fiber Bragg grating based on bent-spectral analysis," Appl. Opt. 54, 1146-1151 (2015)
  51. Hang Zhou Yang, Muhammad Mahmood Ali, Md. Rajibul Islam, Kok-Sing Lim, Dinusha Serandi Gunawardena, Harith Ahmad, Cladless few mode fiber grating sensor for simultaneous refractive index and temperature measurement, Sensors and Actuators A: Physical, Volume 228, 1 June 2015, Pages 62-68
  52. Islam, Md. Rajibul; Mahmood Ali, Muhammad; Lai, Man-Hong; Lim, Kok-Sing; Gunawardena, Dinusha Serandi; Machavaram, Venkata Rajanikanth; Ahmad, Harith: 'Wide-range in-fibre Fabry-Perot resonator for ultrasonic sensing', IET Optoelectronics, 2015
  53. Kok-Sing Lim, Dinusha Serandi Gunawardena, Man-Hong Lai, Md Rajibul Islam, Hang-Zhou Yang, Xueguang Qiao, Amin Malek Mohammadi, Harith Ahmad, Characterization of phasemask interference visibility and the evolution of grating visibility during grating formation, Measurement, Volume 64, March 2015, Pages 163-167
  54. Man-Hong Lai, Dinusha S. Gunawardena, Kok-Sing Lim, Hang-Zhou Yang, and Harith Ahmad, "Observation of grating regeneration by direct CO2 laser annealing," Opt. Express 23, 452-463 (2015)
  55. Man-Hong Lai, Kok-Sing Lim, Dinusha S. Gunawardena, Hang-Zhou Yang, Wu-Yi Chong, and Harith Ahmad, "Thermal stress modification in regenerated fiber Bragg grating via manipulation of glass transition temperature based on CO2-laser annealing," Opt. Lett. 40, 748-751 (2015)
  56. Man-Hong Lai; Kok-Sing Lim; Rajibul Islam, M.; Gunawardena, D.S.; Hang-Zhou Yang; Ahmad, H., "Effect of CO 2 Laser Annealing on Stress Applying Parts Contributing Toward Birefringence Modification in Regenerated Grating in Polarization Maintaining Fiber," in Photonics Journal, IEEE , vol.7, no.5, pp.1-9, Oct. 2015
  57. Qiangzhou Rong; Xueguang Qiao; Hangzhou Yang; Kok Sing Lim; Ahmad, H., "Fiber Bragg Grating Inscription in a Thin-Core Fiber for Displacement Measurement," in Photonics Technology Letters, IEEE , vol.27, no.10, pp.1108-1111, May15, 15 2015
  58. Siamak Dawazdah Emami, Amin Khodaei, Shumithira Gandan, Richard Penny, Kok Sing Lim, Hairul Azhar Abdul-Rashid, and Harith Ahmad, "Thulium-doped fiber laser utilizing a photonic crystal fiber-based optical low-pass filter with application in 1.7 μm and 1.8 μm band," Opt. Express 23, 19681-19688 (2015)
  59. Yang, H., Qiao, X., Wang, Y.P., Ali, M., Lai, M., Lim, K., Ahmad, H., "In-fiber gratings for simultaneous monitoring temperature and strain in ultra-high temperature," Photonics Technology Letters, IEEE , VOL. 27, NO. 1, 2015
  60. Ali, M.M.; Lim, K.S.; Becir, A.; Lai, M.H.; Ahmad, H., "Optical Gaussian Notch Filter Based on Periodic Microbent Fiber Bragg Grating," Photonics Journal, IEEE , vol.6, no.1, pp.1,8, Feb. 2014
  61. H Ahmad, M Dernaika, O M Kharraz, M Alimadad, M F Ibrahim, K S Lim and S W Harun, "A tuneable, power efficient and narrow single longitudinal mode fibre ring laser using an inline dual-taper fibre Mach Zehnder filter",Laser Phys.Vol 24 No 8, 085111 , 2014
  62. Hang Zhou Yang, Xue Guang Qiao, Dong Luo, Kok Sing Lim, WuYi Chong, Sulaiman Wadi Harun, A Review of Recent Developed and Applications of Plastic Fiber Optic Displacement Sensors, Measurement,Volume 48, Pages 333 345, 2014,
  63. Islam, Md. R.; Ali, Muhammad M.; Lai, Man-Hong; Lim, Kok-Sing; Ahmad, Harith. 2014. "Chronology of Fabry-Perot Interferometer Fiber-Optic Sensors and Their Applications: A Review." Sensors 14, no. 4: 7451-7488.
  64. Y.K. Cheong, W.Y. Chong, S.S. Chong, K.S. Lim, H. Ahmad, Regenerated Type-IIa Fibre Bragg Grating from a Ge B codoped fibre via thermal activation, Optics & Laser Technology, Volume 62, October 2014, Pages 69-72
  65. Yang, H.; Qiao, X.; Lim, K.S.; Harun, S.W.; Chong, W.Y.; Islam, R.; Ahmad, H., "Optical fiber sensing of salinity and liquid level," Photonics Technology Letters, IEEE , vol.PP, no.99, pp.1,1
  66. Yeong Siang Chiam, Kok Sing Lim, Sulaiman Wadi Harun,Seng Neon Gan, Sook Wai Phang,Conducting polymer coated optical microfiber sensor for alcohol detection, Sensors and Actuators A: Physical. 205 (2014): 58-62
  67. Hang-Zhou Yang, Kok-Sing Lim, Xue-Guang Qiao, Wu-Yi Chong, Yew-Ken Cheong, Weng-Hong Lim, Wei-Sin Lim, and Harith Ahmad, "Reflection spectra of etched FBGs under the influence of axial contraction and stress-induced index change," Opt. Express 21, 14808-14815 (2013)
  68. Hang-Zhou Yang, Wu-Yi Chong, Xue-Guang Qiao, Mei-Jane Lim,Kok-Sing Lim,Md R. Islam,Norfizah M. Ali,and Harith Ahmad, "1.3 and 1.55 thermally regenerated gratings in hydrogenated Boron/Germanium co-doped photosensitivity fiber," Sensors Journal, IEEE , VOL. 14, NO. 5, MAY 2014
  69. Kok-Sing Lim et al, "Axial contraction in etched optical fiber due to internal stress reduction," Opt. Express 21, 2551-2562 (2013)
  70. Kok-Sing Lim, Hang-Zhou Yang, Ahmed Becir, Man-Hong Lai, Muhammad M. Ali, Xueguang Qiao, and Harith Ahmad, "Spectral analysis of bent fiber Bragg gratings: theory and experiment," Opt. Lett. 38, 4409-4412 (2013)
  71. Lim, Kok-Sing et al, "Polyaniline coated Integrated Microfiber Resonator for UV detection," Sensors Journal, IEEE , VOL. 13, NO. 5, 2013
  72. M. M. Ali, K. S. Lim, H. Z. Yang, W. Y. Chong, W. S. Lim, and H. Ahmad, "Direct period measurement for fiber Bragg grating using an optical imaging technique," Appl. Opt. 52, 5393-5397 (2013)
  73. M. R. A. Moghaddam, S. W. Harun, K. S. Lim, H. Ahmad, "Stability analysis in a soliton fiber ring laser with a hybrid saturable absorber," Microwave and Optical Technology Letters,Vol. 55, No. 1, pp 164 170, 2013
  74. Yang, H.; Chong, W.Y.; Cheong, Y.K.; Lim, K. S.; Pua, C.H.; Harun, S.W.; Ahmad, H., "Thermal Regeneration in Etched-Core Fiber Bragg Grating," Sensors Journal, IEEE , vol.13, no.7, pp.2581-2585, 2013
  75. A. A. Jasim, K. S. Lim, M. Z. Muhammad, H. Arof, H. Ahmad, and S. W. Harun, "Transmission characteristic of multi-turn microfiber coil resonator," Optics and Laser Technology, vol. 44, pp. 1791-1795, Sep 2012.
  76. Ahmad, H., I. Aryanfar, K. S. Lim, W. Y. Chong, and S. W. Harun. 2012. "Thermal Response of Chalcogenide Microsphere Resonators." Quantum Electronics 42 (5): 462- 464.
  77. I. Aryanfar, K.-S. Lim, W.-Y.Chong, S. W. Harun, H. Ahmad, "Add-Drop Filter Based on Microfiber Mach Zehnder/Sagnac Interferometer," Quantum Electronics, IEEE Journal of , vol.48, no.11, pp.1411-1414, 2012
  78. K. S. Lim, S. Yoo, M. C. Paul, H. Ahmad, M. Pal, S. K. Bhadra, and J. K. Sahu, "Tunable laser in Ytterbium doped Y2O3 nanoparticle optical fibers," IEEE Photonic Technology Letter, vol. 24, no. 8, pp. 679 - 681, 2012.
  79. Lim, Kok-Sing; Aryanfar, Iman; Chong, Wu-Yi; Cheong, Yew-Ken; Harun, Sulaiman W.; Ahmad, Harith. 2012. "Integrated Microfibre Device for Refractive Index and Temperature Sensing." Sensors, vol. 12, no. 9: 11782-11789,2012
  80. S. W. HARUN, K. S. LIM, and H. AHMAD, "MICROFIBER STRUCTURES FOR SENSOR APPLICATIONS," J. Nonlinear Optic. Phys. Mat. 21, 1250003 (2012)
  81. W. Y. Chong, K. S. Lim, W. H. Lim, S. W. Harun, F. R. Mahamd Adikan, H. Ahmad, "Spreading profile of evaporative liquid drops in thin porous layer", Physical Review E, vol. 85, no. 1, pp 016314(8), 2012.
  82. A. Sulaiman, S.W. Harun, K.S. Lim, F. Ahmad, H. Ahmad, "Microfiber Mach-Zehnder interferometer embedded in low index polymer," Optics & Laser Technology, vol. 44, no. 4, pp. 1186 1189, 2011.
  83. K. S. Lim, A. A. Jasim, S. S. A. Damanhuri, S. W. Harun, B. M. A. Rahman, and H. Ahmad, "Resonance Condition of Microfiber Knot Resonator Immersed in Liquids," Applied Optics, vol. 50, no. 29, pp. 5912-5916, 2011
  84. Lim K. S.; Harun S. W.; Damanhuri S. S. A.; et al. 2011, Low-cost spectral tunable microfibre knot resonator, IET OPTOELECTRONICS, 5(6) : 281-284.
  85. Lim, K. S., Harun, S. W., Damanhuri, S. S. A., Jasim, A. A., Tio, C. K., & Ahmad, H. (2011). Current sensor based on microfiber knot resonator. Sensors and Actuators, A: Physical, 167(1), 60-62.
  86. Y. K. Cheong, K. S. Lim, W. H. Lim, W. Y. Chong, R. Zakaria, and H. Ahmad, Fabrication of Tapered Fibre Tip using Mechanical Polishing Method, Review of Scientific Instruments, vol. 82, no. 8, pp. 086115 (3), 2011
  87. K. S. Lim, C. H. Pua, S. W. Harun, and H. Ahmad, "Temperature-sensitive dual-segment polarization maintaining fiber Sagnac loop mirror," Optics and Laser Technology, vol. 42, no. 2, pp. 377-381, 2010.
  88. K. S. Lim, M. R. A. Moghaddam, S. W. Harun, and H. Ahmad, "Tunable-Spacing Multi-wavelength Yb-Doped Fiber Laser (YDFL) Based on Temperature Sensitive Loop Mirror," Lasers in Engineering, vol. 20, no. 1-2, pp. 39-45, 2010.
  89. M. R. A. Moghaddam, S. W. Harun, S. Shahi, K. S. Lim, and H. Ahmad, "Comparisons of Multi-Wavelength Oscillations Using Sagnac Loop Mirror and Mach-Zehnder Interferometer for Ytterbium Doped Fiber Lasers," Laser Physics, vol. 20, no. 2, pp. 516-521, 2010.
  90. S. Shahi, S. W. Harun, K. S. Lim, A. W. Naji, and H. Ahmad, "Enhanced Four-Wave Mixing Efficiency Of Bi-EDF In A New Ring Configuration For Determination of Nonlinear Parameters," Journal of Electromagnetic Waves and Applications, vol. 23, no. 17-18, pp. 2397-2407, 2009.
Books
  1. Kok-Sing Lim, Sulaiman Wadi Harun, . Harith Ahmad, Optical microfiber technology, LAP Lambert Academic Publishing (2013)
Chapter in Books
  1. K. S. Lim, S. W. Harun, H. Arof and H. Ahmad (2012). Fabrication and Applications of Microfiber, Selected Topics on Optical Fiber Technology, Moh. Yasin, Sulaiman W. Harun and Hamzah Arof (Ed.),
Article in Proceeding
  1. K. S. Lim, M. M. Ali, C. C. Loo, W. Y. Chong and H. Ahmad, "Observation of mode-coupling in few mode fiber Bragg gratings," 2014 IEEE Photonics Society Summer Topical Meeting Series, Montreal, QC, 2014, pp. 186-187.
Other Publications
  1. 5 Scientist to attend Lindau Nobel Laureate Meetings - Mass Media(Newspaper,Radio,Tv,Popular Magazine)
  2. Advances in Engineering - Reflection spectra of etched FBGs under the influence of axial contraction and stress-induced index change (https://advanceseng.com/general-engineering/reflection-spectra-etched-fbgs-influence-axial-contraction-stress-induced-index-change/) - Other Media(Tape,Video,Internet)
  3. UM cipta alat pantau keretakan - Kosmo! Online (http://www.kosmo.com.my/kosmo/content.asp?y=2014&dt=0409&pub=Kosmo&sec=Infiniti&pg=in_03.htm) - Mass Media(Newspaper,Radio,Tv,Popular Magazine)

RESEARCH PROJECT

National
  1. 2022 - 2025, Fundamental Research Grant Scheme (FRGS)
    Signal Enhancement Study For Gold-coated Tilted Grating With Streptavidin-biotin Sandwich Assay In The Detection Of Sars-cov-2 Virus ( Principal Investigator(PI))
  2. 2022 - 2024, UM International Collaboration Grant
    Transformer Oil Quality Monitoring Based On Refractometric Sensing Using Tilted Fiber Bragg Grating ( Principal Investigator(PI))
  3. 2023 - 2024, MOSTI-Funding
    Advanced Fiber Bragg Grating Sensors For Slope Monitoring System ( Principal Investigator(PI))
  4. 2023 - 2024, Partnership Grant
    FemtoFBG Based Inclinometer For Slope Monitoring ( Principal Investigator(PI))
  5. 2012 - 2014, Geran Penyelidikan Universiti Malaya (UMRG)
    Advanced Fibre Optic Sensors based on Fibre Bragg Grating (FBG) ( Consultant)
  6. 2013 - 2014, Postgraduate Research Grant(PPP)
    Investigation of Higher order modes in Multimode Fiber Bragg Gratings and their sensitivity for strain and temperature sensing applications ( Principal Investigator(PI))
Private
  1. 2022 - 2025, Private Funding
    Laser Remote Sensor For The Assessment Of Oil Palm Fruit ( Principal Investigator(PI))

CONSULTANCY PROJECT

  • Fbg, Uniform Grating Fabrication, Universiti Teknologi Malaysia
    01 Oct 2018 - 01 Oct 2018 (National)
  • Hi-Mag Machining and Automation, Abbe group Sdn Bhd
    01 Nov 2016 - 01 Nov 2017 (National)

PAPER PRESENTED

INVITED SPEAKER
  1. Rapid Detection of SARS-CoV-2 using Surface Plasmon Resonance optical fiber biosensor based on Avidin-Biotin Sandwich Assay, IEEE 10th International Conference on Photonics 2024, IEEE Photonics Society Malaysia Chapter (International) (27 Aug 2024 - 29 Aug 2024)
  2. Fiber Gratings Sensor for the Refractive Index Measurement of Transformer Oils, TNB Calm TechForum 2024, TNB Labs (International) (20 Feb 2024 - 20 Feb 2024)
  3. FIBRE BRAGG GRATING SURFACE PLASMONIC SENSOR FOR REFRACTOMETRY AND BIOSENSING (HAND FOOT MOUTH DISEASE), Sesi Perkongsian Blueprint@Envision2025 Task Force UTM, Task Force UTM (National) (01 Nov 2023 - 01 Nov 2023)
  4. Few-mode Fiber Components for High-speed Optical Communication, OPSI-IASBS e-colloquium, Optics and Photonics Society of Iran (OPSI) (International) (07 Jan 2021 - 07 Jan 2021)
  5. Tilted Fibre Bragg Grating Surface Plasmonic Sensor for refractometry and Biosensing, Refresher course : "Advanced Functional Materials", Madurai Kamaraj University, Madurai-625021 (International) (19 Dec 2020 - 19 Dec 2020)
  6. Fibre Bragg Grating Surface Plasmonic Sensor for Refractometry and Biosensors, Summer Training Program in Chemistry - 2020, Academy of Sciences Chennai, Chennai, Tamil Nadu, India (International) (15 Jul 2020 - 28 Jul 2020)
  7. Optical fiber devices and instruments for Biomedical Applications, IMESS 2019, IEEE Malaysia ED/MTT,SSC (International) (08 Oct 2019 - 09 Oct 2019)
  8. Phase derivative distributed temperature sensor based on Chirped Grating-Michelson Interferometer for Hyperthermia Cancer Therapy, Topical Meeting on Photonics (TMP2019), IEEE Photonics Society Malaysia Chapter (MyIPS) (International) (04 Sep 2019 - 04 Sep 2019)
  9. Phase derivative distributed temperature sensor based on Chirped Grating-Michelson Interferometer for Biomedical Applications, SOpFlat 2018, OpFLAT Focus Group, UTHM, Bagoh Campus (National) (27 Aug 2018 - 27 Aug 2018)
  10. Protection against Laser Radiation, Laser Safety for Officer, Nuclear Malaysia Training Centre (National) (21 Nov 2016 - 25 Nov 2016)
  11. Pep talk on Prototype Research Grant Scheme (PRGS), Taklimat Prototype Research Grant Scheme (PRGS), IPS, UM (University) (19 Aug 2015)
  12. Impactful research at PRC, UM, International conference on Science, Engineering & Technology, VIT University, India (International) (02 May 2015 - 06 May 2015)
  13. Fabrication and characterisation of Regenerated fiber Bragg gratings (RFBG) using CO2 laser annealing, 2015 International Workshop on Frontiers in Physics, Seoul University (International) (17 Apr 2015 - 18 Apr 2015)
EVENT ORGANISER
  1. Training on Fabrication of Fiber Bragg Grating (FBG), Training on Fabrication of Fiber Bragg Grating (FBG), Laser Center, Universiti Teknologi Malaysia (National) (05 Jun 2017 - 07 Jun 2017)
  2. Research and Development of Optical Fibre Sensors at the Hong Kong Polytechnic University, Research Talk, Photonics Research Centre (International) (16 Apr 2013 - 16 Apr 2013)
ORAL PRESENTER
  1. M. H. Lai, D. S Gunawardena, K. S. Lim, Y. S. Lee, and H. Ahmad, Thermal regeneration of fiber Bragg grating in two and four modes step-index fibers, presented in Photonics Conference Meeting 2016: Photonics and its Applications, University of Malaya, Malaysia, 15-16th August 2016., Photonics Conference Meeting 2016: Photonics and its Applications, Photonics Research Centre, University of Malaya (National) (15 Aug 2016 - 16 Aug 2016)
  2. Few Mode Fiber Bragg Gratings for Sensing Applications, 28th Regional Conference on Solid State Science and Technology (RCSSST2014), UiTM Pahang (National) (24 Nov 2014 - 26 Nov 2014)
  3. Observation of mode-coupling in few mode fiber Bragg gratings, 2014 IEEE Summer Meeting Series, IEEE Photonics Society (International) (14 Jul 2014 - 16 Jul 2014)
  4. Mechanically Induced Periodic Mircobending of Fiber Bragg Grating for Vibration Sensing, 9th Mathematics and Physical Science Graduate Congress (9th MPSGC), University of Malaya (International) (08 Jan 2014 - 10 Jan 2014)
POSTER PRESENTER
  1. A novel fabrication technique for high temperature resistant fiber sensor, Winter College on Optics at ICTP, ICTP, Italy (International) (08 Feb 2016 - 12 Feb 2016)
PRESENTER
  1. M. M. Ali, S. F. Memon, E. Lewis, K. S. Lim and H. Ahmad, "Modal sensitivity enhancement of few-mode fiber Bragg gratings for refractive index measurement," 2016 International Conference for Students on Applied Engineering (ICSAE), Newcastle upon Tyne, 2016, pp. 308-311, 2016 International Conference for Students on Applied Engineering (ICSAE), School of Mechanical and Systems Engineering, Newcastle University, UK (International) (20 Oct 2016 - 21 Oct 2016)
  2. Fabrication of regenerated grating using carbon dioxide laser, 4th Workshop on Specialty Optical Fibers and their Applications conference, The Hong Kong Polytechnic University (International) (04 Nov 2015 - 06 Nov 2015)
  3. Enhanced Photosensitivity in 248nm KrF and 193nm ArF Excimer Laser Irradiated Germanosilicate Fiber, Tenth TheIIER International Conference, INTERNATIONAL INSTITUTE OF ENGINEERS AND RESEARCHERS (International) (12 Feb 2015)

ACADEMIC/PROF. SERVICES

Evaluation
  1. (2023) Penilai Dalam Frgs Geran, University, (Internal Assessor)
  2. (2023) Internal Examiner for Phd Thesis, University, (Internal Examiner)
  3. (2018) IEEE Transactions on Instrumentation and Measurement, (Associate Editor)
  4. (2017) Optics Letters, (Reviewer)
  5. (2017) IEEE Access, (Reviewer)
  6. (2017) Optics Express, (Reviewer)
  7. (2017) IEEE Transaction on Instrumentation and Measurements., (Reviewer)
  8. (2017) Reviewer for Optics and Lasers in Engineering, (Reviewer)
  9. (2017) Reviewer for Journal of Physical Science, (Reviewer)
  10. (2017) Reviewer for Optics Express, (Reviewer)
  11. (2016) Reviewer for Sensors & Actuator A, (Reviewer)
  12. (2016) Reviewer for IEEE Photonics Technology Letters, (Reviewer)
  13. (2016) Reviewer for Optics Express, (Reviewer)
  14. (2016) Reviewer for Sensors & Actuators A, (Reviewer)
  15. (2016) Reviewer for IEEE Sensors Journal, (Reviewer)
  16. (2016) MSc Examination - PRC (Nur Sabirah), (Internal Examiner)
  17. (2016) Reviewer for Sensors & Actuators A: Physical, (Reviewer)
  18. (2016) Reviewer for Optics Express, (Reviewer)
  19. (2015) Optics Letters, (Reviewer)
  20. (2015) Optics Express, (Reviewer)
  21. (2015) Journal of Lightwave Technology, (Reviewer)
  22. (2015) Sensors & Actuator A, (Reviewer)
  23. (2015) Candidature defense - PhD., (Internal Examiner)
  24. (2015) OSA Reviewer Recognition 2017, (Reviewer)
  25. (2015) M.Eng Examination - Dept of Electrical Engineering (Loh Kok Kuen), (Internal Examiner)
  26. (2014) Reviewer for Sensors & Actuator B, (Reviewer)
  27. (2014) Reviewer for Nanoscale 2014, (Reviewer)
  28. (2014) PhD - Fac of Engineering, UM, (Internal Examiner)
  29. (2014) External examiner for MSc thesis (UTM), (External Examiner)
  30. (2014) Physical Science Internation Journal, (Reviewer)
  31. (2014) Reviewer for IEEE Sensors, (Reviewer)
  32. (2014) Reviewer for IEEE Sensor, 2014, (Reviewer)
  33. (2014) Reviewer for Physical Science International Journal, (Reviewer)
  34. (2014) Reviewer for Sensors & Actuator B, (Reviewer)
  35. (2014) Reviewer for Applied Optics, (Reviewer)
  36. (2014) Reviewer for BJAST Journal , (Reviewer)
  37. (2013) Reviewer for Optics Express, (Reviewer)
  38. (2013) Reviewer for Sensors Journal, (Reviewer)
  39. (2013) Reviewer for Applied Optics Journal, (Reviewer)
  40. (2013) PhD examination - Dept of Physics (Nor Hazmin), (Internal Examiner)
  41. (2012) Reviewer for IEEE Sensors Journal, 2012-2012, (International) , (Reviewer)
  42. (2012) Reviewer for JOSA B, Optical Society of America (OSA) , (Reviewer)
Contribution to external organisation
  1. (2016) Research Collaboration, School of Engineering - University of Edinburgh, International
  2. (2016) Hi-Mag Machining and Automation, Abbe Group Sdn Bhd
  3. (2014) Research collaboration on extreme temperature fiber sensors, School of Physics, Northwest University, Xian, PR China, International
  4. (2014) Research Collaboration, VIT University, International
  5. (2014) Structural Health Monitoring for Precast Arch Bridge, Rivo Precast Sdn Bhd
  6. (2013) Research Collaboration, The Hong Kong Polytechnic University, International
Contribution to event
  1. (2022) Organizing Committee for International Conference On Innovative Optical Sensors 2022, International, (Event Organiser)

SUPERVISION

Postgraduate Student
PhD/ Doctoral
  1. (2024) study and investigate the potential of MXene and MAX Phase in enhancing the SPR signal upon functionalizing the surface of optical fiber for heavy metal detection, MARYAM JASMINE BINTI MOHD MAKHFUZ
  2. (2024) Big data mining and FBG Sensor Network for Monitoring Charge the state of Lithium-ion Battery, HANGTING YANG
  3. (2024) Development of an Optical Fibre Bragg Grating (FBG) – Based Sensor for Monitoring of Ground Movements, MOHAMAD ASHRAFF BIN ALIAS
  4. (2024) Advanced Functional Layers on Tilted Fiber Bragg Gratings for Surface Plasmon Resonance and Leaky Mode Resonance Generation and Their Applications in Optical Sensing, OOI CHEONG WENG
  5. (2024) PHOTONICS, HOE MIN
  6. (2024) CANTILEVER BASED BIAXIAL FBG INCLINOMETER WITH LOW CROSS-AXIS SENSITIVITY, NIMALRAJH A/L RAMALINGAM
  7. (2024) Signal Enhancement Study for Gold-coated Tilted Fiber Bragg Grating with Streptavidin-biotin Sandwich Assay in The Detection Of SARS-CoV-2 Virus, WALDO ANAK UDOS
  8. (2023) Lithium-Ion Battery State of Charge (SOC) Estimation with Optical Fiber Grating Based Sensor and Deep Neutral Network, EE YEN JIE
  9. (2020) ENHANCEMENT OF REGENERATION RATIO AND THERMAL DURABILITY FOR REGENERATED FIBER BRAGG GRATING BASED ON PRE-ANNEALING TREATMENT AND MULTIMATERIAL FIBERS, NURUL ASHA BINTI MOHD NAZAL
  10. (2020) CHARACTERIZATION OF SPATIAL-MODE PROPERTIES IN FEW-MODE FIBER BRAGG GRATINGS AND ITS APPLICATIONS, MUHAMMAD KHAIROL ANNUAR BIN ZAINI
  11. (2017) Computed Tomography Number shift for the verification of tissue temperature in Radiofrequency Ablation, Daryl Tan (Taylor's University)
  12. (2016) Regenerated Grating Few-Mode Fiber Bragg Gratings, Nurul Asha Binti Mohd Nazal
  13. (2016) Lamb wave method for delamination detection using edge-filter FBG sensors, Nurazima binti Ismail (Universiti Malaysia Pahang (Ump))
  14. (2013) Regeneration and Thermal Stress Modification in Fiber Bragg Gratings using CO 2 Laser Annealing Technique, LAI MAN HONG
  15. (2013) PHOTOSENSITIVITY, GRATING STRENGTH AND THERMAL ENDURANCE OF FIBRE BRAGG GRATINGS, DINUSHA SERANDI GUNAWARDENA
  16. (2013) OPTO-ELASTIC PROPERTIES OF FBG BASED FABRY-PEROT RESONATOR: FABRICATION, CHARACTERIZATION, AND APPLICATIONS, Md Rajibul Islam
  17. (2013) Fiber Lasers, Nor Farhah Binti Razak (M0100115)
  18. (2012) FABRICATION AND CHARACTERIZATION OF FEW-MODE FIBER BRAGG GRATINGS FOR MODE CONVERSION AND SENSING APPLICATIONS, M. Mahmood Ali
  19. (2011) DEVELOPMENT OF MULTI-CHANNEL RAYLEIGH WAVE METHODS FOR CONCRETE CRACKS ASSESSMENT AND CHARACTERIZATION, LEE FOO WEI
Master
  1. (2024) RXPOWER ACCURACY FAILURES, ANGELINE JANE A/P VINCENT XAVIER
  2. (2024) DEVELOPMENT OF NEW SCREENING TEST FOR TX MASK MARGIN PERFORMANCE BASED ON SIDE MODE SUPPRESSION RATIO, YAP CHEE SEONG
  3. (2024) HYBRID METHODOLOGY APPROACH TO TRANSLATE LEGACY SEMI AUTO HOTBAR SYSTEM WITH INPUT/OUTPUT DEVICES, HUSNA MOHD FUAD
  4. (2024) Improvement in The Inspection Process of Optical Fiber Plastic Housing Materials to Increase the First Pass-Yield of Production, SYARINAH ZAKARIA
  5. (2024) OPTIMIZATION OF SUB-ASSEMBLY RX COLLIMATOR ALIGNMENT, AHMAD NOR HAFIZ BIN MOHD RAZALLI
  6. (2024) ELIMINATION OF THERMAL BURN-IN FOR EFFICIENT MANUFACTURE OF DISTRIBUTED FEEDBACK LASERS (DFB), NURUL NAJWA BINTI HARON
  7. (2024) A STUDY ON THE “CAN’T FIND LIGHT” ERROR IN CHIP ON BOARD ALIGNER GEN4, MUHAMMAD IKRAM BIN SHABRY
  8. (2024) FAST HYBRID APPROACH TO ACTIVE ALIGNMENT TECHNIQUE IN MULTI-CHANNEL PHOTONICS DEVICE, CHEONG YENN JOU
  9. (2024) SPECTRAL CHARACTERISATION FOR TILTED FIBER BRAGG GRATING COATED WITH HIGH INDEX MATERIAL, BENYUE LI
  10. (2023) INNOVATIVE LANDSLIDE DETECTION USING ADVANCED DISTRIBUTED FIBRE OPTICS FBG SENSORS, MOHAMAD ASHRAFF BIN ALIAS
  11. (2023) CANTILEVER BASED BIAXIAL FBG INCLINOMETER WITH DIRECT WRITING TECHNOLOGY USING FEMTOSECOND LASER, NIMALRAJH A/L RAMALINGAM
  12. (2021) WAVELENGTH TUNING OF FIBRE LASER USING NON-THERMAL PLASMA AS TEMPERATURE REGULATOR, Nurfarah Faqihah Binti Mansor (Universiti Teknologi Malaysia (UTM))
  13. (2021) Fiber Bragg Grating-based Fabry-Perot Interferometer Sensor for Internal Strain and Temperature on Batteries, EE YEN JIE
  14. (2021) SPECTRAL INTERROGATION TECHNIQUE FOR TILTED FIBRE BRAGG GRATING DEVICES IN REFRACTOMETRY AND IMMUNOASSAY, WALDO ANAK UDOS
  15. (2017) Laser Ablatio Needle of Tissue Cauterization and Percutaneous hyperthermia cancer therapy, Hani Hareiza bt Abdul Raziff (Taylor's University)
  16. (2016) Laser energy Waveguide for tissue ablation, Nurul Syahirah binti Aziz Jaafar
  17. (2016) Few Mode Fiber Devices, Muhammad Khairol Annuar Bin Zaini
  18. (2015) TWO BEAM INTERFEROMETRIC LITHOGRAPHY USING GRATING PHASEMASK, Nur Syazalina bt Mustafa
  19. (2015) HYDROXYL ENTRAPMENT IN FUSED SILICA GLASS FOR PHOTOSENSITIZATION, NURUL ASHA BINTI MOHD NAZAL
  20. (2013) MULTIPHASE REFRACTIVE INDEX SENSING USING SILICA OPTICAL FIBER, Rebecca Supramaniam
  21. (2013) FIBER OPTIC ACOUSTIC/VIBRATION WAVE PICKUP SYSTEM, LIM WEI SIN
  22. (2012) Fibre Bragg Grating Vibration Sensing System, Shirley Diong
Under Graduate Students
  1. (2013) Multi-parameter sensors based on Multimode Fibre Bragg Gratings (MM-FBG) - Loo Chin Chyi
  2. (2012) Ultrasonic sensing using Fibre Bragg Grating - Muhammad Irfan Bin Ab Razak

TEACHING

Master
  1. (2019) SQA7003 - Measurement Techniques and Instrumentation
  2. (2016) SMGS6342 - Optoelectronics
  3. (2015) SMGS6342 - Optoelectronics
  4. (2014) SMGS6342 - Optoelectronics
  5. (2013) SMGS6412 - Photonics Technology
  6. (2012) SMGS6412 - Photonics Technology
Bachelor
  1. (2023) SIF1002 - Vibrations and Waves
  2. (2022) SIF1014 - Vibrations and Waves
  3. (2021) SIF2013 - Photonics
  4. (2017) SIF3006 - Optoelectronics
  5. (2017) SMES4322 - Optoelectronics
  6. (2017) SMES4322 - Optoelectronics
  7. (2016) SMES2103 - Modern Optics
  8. (2015) SMES2173 - Electronics Practical
  9. (2014) SMEB2271 - Material Science Laboratory I

PATENT/IPR

  • An Apparatus Comprising A Laser Hot Needle For Use In Medical Treatment
    PATENT
  • METHOD AND APPARATUS FOR DETECTION AND CHARACTERIZATION OF CONCRETE CRACKS
    PATENT
  • Multi-parameter Sensor Using Cladless Few Mode Fiber Bragg Gratings
    PATENT
  • Add and Drop Filter based on Microfiber Mach-Zehnder / Sagnac Interferometer
    PATENT
  • A MICROFIBER-BASED INTEGRATED INTERFEROMETER
    PATENT
  • FEW-MODE FIBRE GRATING SENSOR
    PATENT
  • PLASMONIC SENSOR FOR DETECTING METAL IONS
    PATENT
  • Surface Plasmon Resonance (SPR) Fiber Grating Biosensor and Method for Detecting Virus.
    Patent (National)
  • An apparatus comprising a laser hot needle for use in medical treatment
    Patent (National)
  • FBG Accelerometer based on magnetic damped cantilever configuration
    PATENT
  • Micrometer resolution distributed measurement using chirped grating and Michelson Interferometer
    Patent (National)
  • Dynamic focusing of Gaussian beam for efficient laser ablation and cutting
    Patent (National)
  • Optical Integrated Microfibre for Refractive Index and Temperature Sensing
    PATENT
  • Rayleigh wave method for concrete surface crack characterization
    Copyright (National)
  • A Fiber-Based System As A Spatial Mode Converter, A Method For Forming Few Mode Fiber Bragg Gratings And Use Thereof
    PATENT
  • A Fiber-Based System As A Spatial Mode Converter, A Method For Forming Few Mode Fiber Bragg Gratings And Use Therefor
    Patent (National)
  • CO2 Laser Radiation Heating Technique For Regenerated Fiber Bragg Grating Fabrication
    PATENT
  • Cladless Few Mode Fiber Grating Sensor
    Patent (National)
  • CO2 Laser Radiation Heating Technique For Regenerated Fiber Bragg Grating Fabrication
    Patent (National)
  • Add-Drop Filter Based on Microfiber Mach ZehnderSagnac Interferometer
    Patent (National)
  • Dynamic Tracking Fiber Tapering Workstation
    Patent (National)
  • Optical Integrated Microfibre Device for Refractive Index and Temperature Sensing
    Patent (National)

SOCIAL RESPONSIBILITY ACTIVITIES

  • Invited Talk On 'Sesi Pengkongsian Penerima Ted1, Mosti' At UPSI, (17 Aug 2023 - 17 Aug 2023) (National)
  • Associate Editor of IEEE Transactions On Instrumentation and Measurement, (01 Jan 2022 - 31 Dec 2022) (International)
  • Panelist in Engenius 2019’, (23 May 2019 - 23 May 2019)
  • Edu Talk. 2.0, (28 Apr 2019 - 28 Apr 2019)
  • Associate Editor of IEEE Transactions On Instrumentation and Measurement, (27 Dec 2018 - 31 Dec 2022) (International)
  • Assist Treasurer of Persatuan Kebajikan Penduduk Petaling Garden, (02 Oct 2018 - 01 Oct 2020)
  • Outstanding Reviewer for IEEE Transactions On Instrumentation and Measurement, (01 Jan 2018 - 24 Dec 2018)
  • Moa Between UM and Northwest University, Xi'An, China, (01 Jul 2014 - 30 Jun 2016)

COURSE ATTENDED

Internal / External Course
EXTERNAL COURSE
  1. LEADING IN RESEARCH DEVELOPMENT ACTIVITIES FOR HIGHER EDUCATION, Akept, Negeri Sembilan (27 May 2013 - 28 May 2013)
  2. MATLAB SIMULINK FOR DATA ACQUISITION AND CONTROL, Fac of Mechanical Engineering, Ump (01 Mar 2017 - 01 Mar 2017)
  3. CURATION WORKSHOP: CURATING YOUR RESEARCH INTO STORY, Bilik Mesyuarat 2, Level 4, Chancellery Building, UM (17 Jul 2019 - 18 Jul 2019)
CONFERENCE
  1. 2015 INTERNATIONAL WORKSHOP ON FRONTIERS IN PHYSICS, Department of Physics, Korea University, Seoul, Korea (15 Apr 2015 - 18 Apr 2015)
  2. 2014 SUMMER TOPICALS MEETING SERIES 14 - 16 JULY 2014 , Delta Montreal, Canada (13 Jul 2014 - 18 Jul 2014)
  3. UNIVERSAL ACADEMIC CLUSTER INTERNATIONAL SPRING CONFERENCE IN OSAKA, Imedio, 6th Floor, Itm, Asia and Pacific Trade Center, Osaka, Japan (10 Apr 2018 - 14 Apr 2018)
  4. MELAKA INTERNATIONAL INTELLECTUAL EXPOSITION (MIIEX) 2019, Kolej Profesional MARA Bandar Melaka, Malaysia (06 Aug 2019 - 08 Aug 2019)
  5. 2019 TOPICAL MEETING ON PHOTONICS (TMP 2019), Bangi Resort Hotel, Selangor (04 Sep 2019 - 04 Sep 2019)
  6. INDES 2019, Casuarina Hotel, Ipoh, Perak (19 Sep 2019 - 19 Sep 2019)
  7. IEEE INTERNATIONAL MICROWAVE, ELECTRON DEVICE AND SOLID- STATE SYMPOSIUM IMESS 2019, Penang Skills Development Centre (08 Oct 2019 - 09 Oct 2019)
  8. WINTER COLLEGE ON OPTICS: QUANTUM PHOTONICS AND INFORMATION , Abdus Salam International Centre for Theoretical Physics (Ictp), in Trieste (15 Feb 2020 - 22 Feb 2020)
OFFICIAL VISIT
  1. BADEN WURTTEMBERG POST CONFERENCE, (01 Jul 2016 - 08 Jul 2016)
INTERNAL COURSE- ORGANIZED BY PTJ
  1. BENGKEL TRANSFORMASI PUSAT PENYELIDIKAN FOTONIK (PRC), Km Chalet, Kuala Linggi, Melaka (09 Nov 2018 - 11 Nov 2018)
  2. CURATION WORKSHOP: CURATING YOUR RESEARCH INTO STORY, Bilik Mesyuarat 2, Tingkat 4, Bangunan Canseleri (17 Jul 2019 - 18 Jul 2019)
External Course
NATIONAL
  1. Biomass & Plasma Technologies for Sustainability, Online Platform (28 Oct 2021 - 28 Oct 2021)