Associate Professor Ts Dr Cheng Xiau San Email: [email protected] Dr Cheng Xiau San is an Associate Professor at the School of Engineering, University of Wollongong Malaysia. She currently serves as the Program Leader for Engineering Postgraduate Studies and Foundation Studies. Dr Cheng obtained her Bachelor of Science (Hons) in Applied Physics from the University of Malaya, followed by a Master of Science in Applied Physics in 2006, where her research focused on multi-wavelength Brillouin–erbium fiber lasers for DWDM systems. She later earned her PhD in Engineering from the University of Malaya in 2013, specialising in wideband bismuth-based erbium-doped fiber amplifiers. Dr Cheng has more than 15 years of experience in academia. Prior to joining academia, she worked as an Optical Engineer in a camera module company, where she was involved in optical test development and product characterisation. She is a registered Professional Technologist in Malaysia and actively serves in professional roles, including on the publication committee of the Optical Society of Malaysia, the committee of the Malaysian Institute of Physics, and as Secretary of the Women’s Research Engineers’ Network (WREN). Dr Cheng’s research focuses on photonics and optical fiber technology, with interests in ultrafast lasers, optical fiber sensing, and mid-infrared laser generation. She serves on technical program and publication committees for several photonics-related conferences and has successfully secured multiple research grants. In addition, she is an editorial board member of Advanced Research in Applied Sciences and Engineering Technology and a reviewer for international journals. To date, she has published numerous research articles in international journals and conference proceedings. Qualifications PhD in Engineering University of Malaya (UM), 2009-2013 Research Title: Wideband Bismuth-Based Erbium-doped Fiber Amplifier Validation Framework Master of Science in Applied Physics University of Malaya (UM), 2004-2006 Research Title: Multi-wavelength Brillouin Erbium Fiber laser for DWDM System BSc (Hons) Applied Physics University of Malaya (UM), 2001-2004 Research Title: Digital Speckle Pattern Interferometry for Non-destructive Testing Research & Publications Year Title 2026 Y. Chen, Z.C. Tiu, Z.H. Lip, S.J. Tan, X.S. Cheng, Masruroh, S.W. Harun, “Iron phthalocyanine-based saturable absorber for dual-wavelength passive Q-switching in a thulium-doped fiber laser”, Optik, Volume 348, 2026. 2025 S.H. Chang, S.J. Tan, X.S. Cheng, Z.C.Tiu, F.Ahmad, S.W. Harun, “Polarization state of light manipulation via MXene driven all optical modulator”, Optical Fiber Technology, Volume 91, 2025. IP Patent Cheng Xiau San, L. Z. Hong, T. S. Jin, S. W. Harun, 2025 “A NEAR-MID-INFRARED FIBER LASER SYSTEM”, Malaysia Patent, Filed January 13, 2025, PI2025000168 T. S. Jin, S. H. Chang, X. S. Cheng, Z. C. Tiu, S. W. Harun, F. Ahmad, 2025 “MXENE-COATED SIDE-POLISHED FIBER POLARIZATION MODULATOR”, Malaysia Patent, Filed May 14, 2025, UI2025002947 2024 Z.H. Lip, X.S. Cheng, S.J. Tan, et al., “Advancing Q-switched pulse generation in the 1.9 µm wavelength region using novel thulium-doper fiber gain medium and MXene Nb2CTx saturable absorber”, Optik, Volume 311, 2024. Lip ZH, Cheng XS, Chi Mz, Tan SJ, Anas A.L, Sulaiman W.H, “Passively generated Q-switched pulses fiber laser in 2µm wavelength using MXene Ti3C2Tx and Ti2CTx saturable absorber”, Physica Scripta, Vol 99, no 12, 2024. X.S. Cheng, Z.H. Lip, S.J. Tan, A.A. Latiff, S.W. Harun, “Generation of 2.8 µm fiber laser using an Erbium-doped ZBLAN double-clad fiber in a linear-cavity-free space experimental setup”, Microwave and Optical Technology Letters, vol 66, issue 4, 2024 2023 Journal Publications Chi, M., Lip, Z.H., Rosol, A.H.A. et al. Passive Q-Switching of a Cladding Pumped Erbium–Ytterbium Co-Doped Fiber Laser Induced by the Kerr Effect. J Russ Laser Res, 44, pp.585-589, 2023. Tan Jun Wei, Lip Zhan Hong, Sulaiman Wadi Harun, and Cheng Xiau San, “PANDA Fiber Sagnac Interferometer for Temperature Sensor Application”, J. Adv. Res. Appl. Sci. Eng. Tech., vol. 32, no. 3, pp. 316–323, Oct. 2023. Lip Zhan Hong, Tan Sin Jin, Sulaiman Wadi Harun, and Cheng Xiau San, “Double-Brillouin Frequency Spacing Multi-Wavelength Brillouin Erbium Fiber Laser in Double Cavities Configuration”, J. Adv. Res. Appl. Sci. Eng. Tech., vol. 32, no. 3, pp. 52–58, Oct. 2023. Seong Hong Chang, Sin Jin Tan, Abdulkadir Mukhtar Diblawe, Zian Cheak Tiu, Xiau San Cheng, Fauzan Ahmad and Sulaiman Wadi Harun, “Optical modulation in Er-doped fiber laser delivering dark pulse utilizing side polished fiber coated with Ti3AlC2 as saturable absorber”, Materials Research Express, Volume 10, Number 9, 2023. 2021 Journal Publications A Ahmad, MFA Rahman, MAM Johari, AA Latiff, MH Jali, HHM Yusof, XS Cheng, AR Muhammad, SW Harun, “Hafnium Bismuth Erbium Co-Doped Fiber Based Dark Pulses Generation With Black Phosphorus As Saturable Absorber”, Journal of Physics: Conference Series, Vol 2075 012018, 2021. 2020 Journal Publications A Ahmad, AHA Rosol, MQ Lokman, XS Cheng, MC Paul, A Dhar, S Das, “Multi-wavelength Comb Generated by the Four Wave Mixing Using Highly Nonlinear Hafnium Bismuth Erbium-Doped Fiber”, Journal Fotonik, Vol 1, pp 18-23, 2020. S. J. Tan, Z.C. Tiu, X. S. Cheng, H. Ahmad, “All fiber temperature sensor based on TMD Alloy coated tapered fiber”, 2020 IEEE 8th International Conference on Photonics (ICP), 2020. Aya A Almukhtar, Alabbas A Al-Azzawi, XS Cheng, PH Reddy, A Dhar, MC Paul, H. Ahmad, SW Harun, “Enhanced Triple-pass Hybrid Erbium Doped Fiber Amplifier using Distribution Pumping Scheme in a Dual-stage Configuration”, Optik, Volume 204, 164191, 2020. 2019 Journal Publications Aya A Almukhtar, Alabbas A Al-Azzawi, BA Ahmad, XS Cheng, PH Reddy, A Dhar, MC Paul, H Ahmad, SW Harun, “Flat-gain and wide-band partial double-pass erbium co-doped fiber amplifier with hybrid gain medium”, Optical Fiber Technology, Vol 52, 101952, 2019. Aminah Ahmad, Xiau S. Cheng, Mukul C.Paul, Anirban Dhar, Shyamal Das, Harith Ahmad, Sulaiman W. Harun, “Self-generating Brillouin Fiber laser using highly nonlinear hafnium bismuth erbium-doped fiber”, Microwave and optical Technology Letters 61 (6), 1651-1655, 2019. Refereed Proceedings MFM Rusdi, XS Cheng, AA Latiff, AHA Rosol, MT Ahmad, MFA Rahman, SW Harun, “Q-switched Thulium-doped fibre laser using Bismuth (III) Telluride-based saturable absorber”, Journal of Physics: Conference Series, Vol 1371, 012008, 2019. https://iopscience.iop.org/article/10.1088/1742-6596/1371/1/012008 AA Almukhtar, AA Al-Azzawi, XS Cheng, MC Paul, H Ahmad, SW Harun, “ The effect of 980 nm and 1480 nm pumping on the performance of newly Hafnium Bismuth Erbium-doped fiber amplifier”, Journal of Physics: Conference Series 1151 (1), 012013, 2019. https://iopscience.iop.org/article/10.1088/1742-6596/1151/1/012013/pdf SJ Tan, H Haris, XS Cheng, SW Harun, “Mode-locked Pulsed Fiber Laser with Graphene Solution as Saturable Absorber Deposited in Photonic Crystal Fiber”, 2019 18th International Conference on Optical Communications and Networks (ICOCN). 2019. 2018 Journal Publications A.A.Latiff, X.S.Cheng, M.F.M.Rusdi, M.C.Paul, S.W.Harun, and Harith Ahmad “Molybdenum disulfide saturable absorber for eye-safe mode-locked fiber laser generation”, Journal of Nonlinear Optical Physics & Materials, Vol 27, No.1, 2018. Aminah Ahmad, Xiau S. Cheng, Mukul C.Paul, Anirban Dhar, Shyamal Das, Harith Ahmad, Sulaiman W. Harun, “Investigation of Brillouin effect in highly nonlinear hafnium bismuth erbium doped fiber”, Microwave and optical Technology Letters, vol 61, 173-177, 2018. Research Grant / Consultancy Project RESEARCH GRANT Duration: 2025-2027 Title: Advancing early and mid-career Researchers: WREN 2025 Global Events Sponsors/Grant: Theo Murphy Initiative (Australia) International Grant Duration: 2024-2026 Title: Highly Sensitive Optical Fiber Temperature Sensor Based on Cascaded Sagnac Interferometers Sponsors/Grant: UOW Malaysia Research Grant Duration: 2022-2024 Title: Nonlinear optical properties study of two dimensional Mxene based optical modulation and information processing for optical interconnect application in the new era of Internet of Things (IoT) Sponsors/Grant: FRGS grant scheme of Ministry of Higher Education, Malaysia (RM 100,824) Duration: 2021-2023 Title: Optical properties study of fluoride glass-based fiber operating in 2-4-micron region for MIR laser spectroscopy and medical laser application. Sponsors/Grant: FRGS grant scheme of Ministry of Higher Education, Malaysia (RM 95,800) Academic, Industry and Ministry Appointments Appointments as Keynote Speaker International Conference on Innovation and Technopreneurship (2023) 5th International Conference on Science and Innovated Engineering (2022) 7th International Conference of Advanced Technology and Applied Sciences (2022) 2nd Photonics Meeting (2019) Appointments as Journal Reviewer Journal Photonic Journal Optoelectronics IEEE Access WREN Symposium Optical and Quantum Electronics Optical Fiber Technology Journal of Optics and Photonics Research Journal of Optics and Laser Technology Supervision PhD Aminah Binti Ahmad (2018-2021) Compact Optical Amplifier, nonlinear fiber laser and pulse generation with Hafnia-bismuth Erbium co-doped fiber Masters Chang Seong Hong (2023-2025) Development of Temporal and Polarization Modulator Based on Transition Metal Carbide Coated Side Polished Fiber Lip Zhan Hong (2021-2024) Advancements in Fiber Laser generation for Mid-Infrared Applications: A Focus on 2μm and 3μm Wavelengths Awards and Recognitions Professional Membership Professional Technologist Malaysia Malaysia Institute of Physics Optical Society of Malaysia (OSM) Awards UOW Malaysia Collaboration Award (Team), 2025 UOW Malaysia Collaboration Award (Team), 2023 UOW Global Innovation Award 2022 (School of Engineering Tech Savvy Team) UOW Malaysia Research Excellence Award 2023 UOW Global Innovation Award, 2022