Invited Speakers
Amol Choudhary, PhD
Indian Institute of Technology, Delhi, India
Title: Low-Power Brillouin Microwave Photonics
Abstract: The utilization of the phase response of Brillouin scattering to synthesize low-power microwave photonic filters will be discussed in the talk.
Bio: Amol is an Associate Professor at the Indian Institute of Technology
Delhi, India and leads the 16-member UltraFast Optical Communications
and High-performance Integrated Photonics (UFO-CHIP) group. His research
areas include laser physics and nonlinear optics and their applications
in high-speed communication networks. He has made several contributions
to integrated optics and microwave photonics, published in more than 150
journal and conference papers. He has received several awards including
the Discovery Early Career Research Award (DECRA) from the Australian
Government, the Doctoral Prize Fellowship from the UK government, the
Erasmus Mundus Scholarship, and the Ivan P. Kaminow Outstanding Early
Career Professional Prize from Optica. He is also an Optica Ambassador.
Bernhard Schrenk, PhD
Austrian Institute of Technology, Austria
Title:Making Quantum Key Distribution a Commodity: The All-Silicon Approach
Abstract: The dawning of the quantum age makes quantum key distribution (QKD) an indispensable necessity for our global communication infrastructure. The realization of an all-silicon QKD transmitter supplied by a light source that is native to silicon integration platforms is seen as a disruptive step towards the pervasive introduction of QKD in new applications, which up to now have not been explored due to the missing credentials of quantum optics as a cost-effective and highly miniaturized technology.
Bio: Bernhard Schrenk received the M.Sc. degree in microelectronics from the Technical University of Vienna. He was at the Institute of Experimental Physics of Nobel laureate Prof. A. Zeilinger, where he was involved in the realization of a first commercial prototype for a quantum cryptography system, within the European SECOQC project. From 2007 to early 2011 he obtained his Ph.D degree at UPC BarcelonaTech, Spain. His Ph.D thesis on multi-functional optical network units for next-generation Fiber-to-the-Home access networks. In 2011 he joined the Photonic Communications Research Laboratory at NTUA, Athens, as post-doctoral researcher and established his research activities on coherent FTTH. In 2013 he established his own research force on photonic communications at the AIT Austrian Institute of Technology, Vienna, where he is working towards next-generation metro-access 6G networks, photonics integration technologies and quantum optics. Dr. Schrenk has authored and co-authored ~200 publications in top-of-the-line (IEEE, OSA) journals and presentations in the most prestigious and highly competitive optical fiber technology conferences. He was further awarded with the Photonics21 Student Innovation Award and the Euro-Fos Student Research Award for his PhD thesis, honoring not only his R&D work but also its relevance for the photonics industry. He is serving as Technical Program Committee member for the ECOC and OFC conferences. In 2018 he was awarded by the European Research Council with an ERC Starting Grant.
Chaotan Sima, Assoc Prof
Huazhong University of Science and Technology, China
Title: Advanced photoacoustic-based gas sensing and applications
Abstract: The abstract introduces the research progress in HUST on the advanced optical gas sensing using TDLAS and photoacoustic spectroscopy, as well as engineering prototypes of developed instruments in multiple trace gas detection.
Bio: Dr. Chaotan Sima is an Associate Professor in optoelectronics and deputy director of the international office at Huazhong University of Science and Technology (HUST), China. He obtained the Ph.D. degree at the ORC in the University of Southampton, UK in 2013. After the temporal industry experience, he joined HUST in 2014, and received the Marie-Curie Fellowship in 2019. His research interests include advanced optical gas sensing and applications, as well as planar integrated devices. He has (co)authored over 50 technique publications, 10 patents and been the PI for over 10 national-level grants including projects from NSFC and National Key R&D Project. He serves as an editorial member of Optical and Quantum Electronics and guest editors of Sensors and Photonics. He is a senior member of IEEE, member of Optica and CSOE, as well as TPC members of several international conferences including APC, CLEO_PR and POEM.
Christopher Holmes, Assoc Prof
University of Southampton, United Kingdom
Title: Microstructured Flexible Photonics for In-process and Structural Health Monitoring of High-Value Composite Materials
Abstract: This paper introduces novel advancements in the realm of microstructured flexible photonic devices, emphasizing their application in real-time monitoring during manufacturing processes and for assessing the integrity of structural systems. By integrating microscale photonic structures into flexible substrates, we present a cutting-edge approach that enhances the monitoring capabilities of high-value composites, including Carbon Fibre Reinforced Polymer (CFRP). Our research demonstrates how these photonic devices can be seamlessly embedded within materials, providing critical process data. The implications of this technology span across numerous industries, offering potential improvements in safety, efficiency, and maintenance.
Bio: Chris is an Associate Professor at the University of Southampton and holds a Royal Society Industry Fellowship with GE Aerospace, he is Chair of Optica’s Optical Fabrication and Testing Technical Group and currently leads research activity of >£3m on planar flexible glass substrates for sensing and energy storage.
Karolina Slowik, Assoc Prof
Institute of Physics, Nicolaus Copernicus University in Toruń, Poland
Title: Quantum Plasmonics with Graphene
Abstract: The field of quantum plasmonics has emerged as a promising avenue for the development of advanced photonic and quantum computing technologies. Graphene's exceptional electronic and optical properties make it an ideal platform for plasmonics. In particular, its ability to support tightly confined surface plasmon-polaritons with long lifetimes enables significant enhancements in light-matter interactions. We will explore recent advancements in the manipulation of plasmons within graphene, focusing on applications for optical control of molecular emission properties and light frequency conversion.
Bio: Dr. Karolina Słowik is an Associate Professor at the Nicolaus Copernicus University in Toruń, Poland (NCU), specializing in theoretical quantum optics and nanophotonics. She completed her PhD at NCU in 2012. Following her doctoral studies, she undertook postdoctoral research at the Friedrich Schiller University in Jena and the Karlsruhe Institute of Technology in Germany. Her research during this period focused on light-matter interactions near photonic
Kazutoshi Kato, Prof
Kyushu University, Japan
Title: Terahertz Wave Generation and Beam Steering by Photonics Technology
Abstract: Photomixing of two lightwaves at a photomixer is one of the promising methods for terahertz wave generation. Furthermore, by arraying the photomixers, THz-wave power can be combined and steered. We developed several kinds of arrayed photomixers as well as photonic phase management systems. We demonstrate THz-wave power combination and beam steering at 300 GHz with arrayed photomixing and photonic phase tuning. In addition, we show experimental results of some advanced terahertz wave wireless transmission systems by utilizing the terahertz wave beam.
Bio: Kazutoshi Kato received the B.S and M.S. degrees in physics and the Ph.D. degree from Waseda Universityin 1985, 1987, and 1993, respectively. Since 1987, he has been with NTT Opto-Electronics Laboratories, where he had been engaged in research on receiver OEIC’s, high-speed p-i-n PD’s for wide-band transmissions. From 1994 to 1995, he was on leave from NTT at France Telecom CNET Bagneux Laboratory, France, as a Visiting Researcher working on high-sped PD’s. From 2000 to 2003, he was with NTT Electronics Corporation, where he was involved in developing photonic network systems. From 2004 to 2011, he was a Research Manager at the NTT Photonics Laboratories, where he is in charge of developing semiconductor devices and subsystems for photonic network systems. From 2012 he has been a professor at Kyushu University. His current research topics are terahertz-wave technologies for a wireless transmission, and tunable lightwave technologies for a photonics network.
Ke Wang, Assoc Prof
RMIT University, Melbourne
Title: Thresholding Methods in Rolling Shutter Camera-Based Optical Camera Communication
Abstract: Optical camera communication (OCC) systems,
which use light-emitting diodes as the transmitter and rolling
shutter (RS) cameras as the receiver for high-speed communication,
rely on received luminance for reliable data retrieval and
face challenges due to the inherent nature of data collection.
Additionally, efforts to make RS cameras compatible with lowspeed
mobile scenarios add further complexity to the system.
Therefore, various methods have been proposed to address the
diversity in pixel illumination values captured by the RS camera
to ensure the system’s reliability. Here, we review the methods
for RS camera-based OCC data decoding and discuss possible
future research directions.
Bio: Ke Wang received the Ph.D. degree in electrical and electronic engineering from the University of Melbourne, Australia, in 2014. He is currently an Associate Professor and the Deputy Head of Department – Research and Innovation, at the Department of Electrical and Electronic Engineering, Royal Melbourne Institute of Technology (RMIT University), Australia. He was an Assistant Professor at Stanford University, USA, and a DECRA Fellow at The University of Melbourne. He has published >200 peer reviewed papers and received many national and international awards. His current research interests include optical and wireless communication technologies and convergence, terahertz communications, optical interconnects, satellite communications and networks and silicon photonic integrations.
Kimio Oguchi, Prof
National Taiwan University of Science and Technology, Taiwan
Title: Functional Confirmation of AWG-Based Wavelength Routers in Recursive Wavelength Routing Networks
Abstract:Wavelength routing domain structure that uses AWG-based wavelength routers in recursive configuration is proposed. Then, it discusses the inside router connection matrix, scalability of proposed structure by analyzing several features and application area size. Results showed the feasibility of the proposed structure.
Bio: Kimio Oguchi received the B.E. and M.E. degrees in applied physics and Dr. Eng. degree in electrical engineering in 1978, 1980 and 1995, respectively from Nagoya University, Nagoya, Japan. He is a Visiting Research Fellow at the Heterogeneously-integrated Silicon Photonic Integration Center (HiSiPIC), National Taiwan University of Science and Technology (NTUST). He joined NTT Public Corp. (now NTT), Japan in 1980. Since then, he was engaged in the R&D and its management of fiber-optic systems including fiber-optic local area networks, ATM link systems, photonic transport networks, applications of advanced photonic devices, and large contents distribution systems. He was also involved in the standardization activities in both ITU-T SG’s 13 and 15. Then, he has moved to academia in 2004 as a Full Professor at the Information Networking Laboratory, Graduate School and Science and Technology and Faculty of Science and Technology, Seikei University, Tokyo, Japan. In 2019, he moved to NTUST as a Project Professor at the Department of Electrical and Computer Engineering, NTUST, Taipei, Taiwan. He was also serving as the director of SAXA Holdings Japan during 2015 to 2019, Inc. and is currently serving as the outside director of TAMA-TLO Ltd. Japan. His research interests include information networking issues, applications utilizing e.g. photonic networks, cyber physical systems, sensor networks, and human vital functions, and contents distribution networks.
Kok-Sing Lim, Assoc Prof
University of Malaya, Malaysia
Title: Synchronous multipoint vibration mode analysis for suspension bridge using FBG accelerometer sensor array
Abstract: Vibration modes and natural frequencies of overhead bridges hold important characteristics information about the
structural health condition of the bridges. Vibration mode and dynamic frequency analyses are the reliable and
widely adopted non-destructive assessment techniques for the detection of damage or any form of degradation in
bridge structures. Various measurement technologies have been proposed for this application for instance, the
wireless MEMS system. However, this technology has technical challenges such as the time synchronization,
intermittent connectivity of the sensing modules and multi-path errors. On the other hand, fibre-optic sensors such
as fibre Bragg grating (FBG) accelerometers turn out to be a better solution in terms of immunity to
electromagnetic interference, low attenuation loss, large area coverage and synchronous multi-point measurement
capability. In this work, we will present the results of dynamic frequency analysis for a ~110m long steel cable
suspension bridge located in Bukit Gasing Forest Reserve – Taman Rimba Bukit Kerinchi, Lembah Pantai, Kuala
Lumpur, Malaysia. Seven FBG based accelerometers have been used for measuring the vibration responses of the
bridge based on single-pulse excitation. Taking advantage of the synchronous data from all seven sensors, the
mode shapes of the lowest three natural frequencies can be easily identified. The time-varying responses of the
mode shapes can be constructed from the data. This information is important and useful for the structural analysis
and integrity assessment of the bridges.
Bio:
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, Surface
plasmonic resonance (SPR) tilted fiber Bragg Grating (TFBG) sensor, and medical laser devices.
He served as an associate editor of IEEE Trans. on Instrumentation and Measurement (2018-
2022). He is 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.
Lau Kuen Yao, Assoc Prof
Soochow University, China
Title: O-band bismuth-doped fiber amplifier and mode-locked fiber laser;
Abstract: Conventional single-mode fiber has low dispersion and low loss in the O-band, which finds numerous applications in optical communication and fiber laser systems. However, silica fibers doped with lanthanide ions have weak gain efficiency in the O-band, making them unsuitable in fiber laser systems due to inherent difficulty of generating efficient luminescence. Therefore, investigation to generate efficient O-band luminescence is trapping recent attention. Efficient O-band luminescence is made feasible by successful conversion of bismuth ions in the bismuth-doped phosphosilicate glass into active centers. Here, we fabricated a bismuth-doped phosphosilicate glass fiber (BPGF) preform through chemical vapor deposition. After drawing this preform into a single-mode BPGF, we utilized this BPGF to achieve three research platforms, which include the generation of O-band fiber amplifier, rectangular pulse emission through dissipative soliton resonance regime, and power threshold reduction of self-start mode-locking using a 3×3 optical coupler with a 2π/3 or 120-degree phase shift. We hope this work can share knowledge and simulate idea by presenting useful and important O-band fiber amplifier and fiber laser systems, that can also be understood by researchers outside this specialty.
Bio: Dr. Lau Kuen Yao is currently an associate professor at Soochow University, China. He obtained his PhD in Photonics Engineering at the University of Putra Malaysia in February 2018. He was a post-doctoral researcher at Universiti Tenaga Nasional, Malaysia (2018-2019), Aalto University, Finland (2019-2020) and Zhejiang University, China (2021-2024). His research interest includes specialty optical fibers, fiber amplifiers, fiber lasers, nonlinear and ultrafast optics. He published more than 50 peer-reviewed articles in high-impacted SCI-indexed journals such as Advanced Materials (IF = 29.4), Light-Science & Applications (IF = 19.4), Small (13.3), Laser & Photonics Review (IF = 11.0), Advanced Optical Materials (9.0), Chemistry of Materials (8.6), Nanoscale (8.3), Nanophotonics (7.5) and Journal of Lightwave Technology (4.7). In 2022, he was awarded with the Wiley China Open Science High Contribution Author.
Mohd Saiful Dzulkefly Zan, Assoc Prof
Universiti Kebangsaan Malaysia, Malaysia
Title: Advancement of Signal Processing Techniques in Improving the Performance of Brillouin-based Distributed Fiber Sensor
Abstract: We explain two novel signal processing techniques based on short-time Fourier transform (STFT) in the Brillouin optical time domain reflectometry (BOTDR) fiber sensor for improving the Brillouin frequency shift (BFS) accuracy and the spatial resolution. In both techniques, the STFT-based cross-correlation of multiple Brillouin spectra measured by multiple optical pulses with different durations reduces the Brillouin spectral width, making the BFS estimation more accurate. Then, the differential of the Brillouin signals measured by these pulses result in sub-meter spatial resolution corresponding to the duration difference. We discuss in detail the first technique called differential cross-spectrum BOTDR (BOTDR), which involves the cross-correlation between a Brillouin spectrum generated by a long pulse (TL) and another spectrum generated by a relatively shorter pulse (TS). The DCS-BOTDR shows promising results in improving the BFS accuracy and achieving sub-meter spatial resolution (contributed by TS). The second technique is the extension of DCS-BOTDR, by which we include another long pulse (duration TM) after the TL and TS pulses. Incorporating additional cross-correlation involving the TM pulse not only preserve the sub-meter spatial resolution after the signal differential, but it also results in a higher BFS measurement accuracy.
Bio: Mohd Saiful Dzulkefly Zan (Senior Member, IEEE) received the B.Sc. degree in Electronics, Information and Communication Engineering from Waseda University, Tokyo, Japan (2006), and the M.Eng and Ph.D. degrees from the Shibaura Institute of Technology, Tokyo, in 2011 and 2014, respectively. From 2017 to 2018, he worked as a Postdoctoral Researcher at Shibaura Institute of Technology. Currently, he is an Associate Professor at the Department of Electrical, Electronic and Systems Engineering, Faculty of Engineering and Built Environment, Universiti Kebangsaan Malaysia, Malaysia. His research interests are centered around the optical fiber sensors (OFS) such as Brillouin-based and Rayleigh-based distributed optical fiber sensor (DOFS), fiber Bragg grating (FBG) sensors etc. He is also a Senior Member of The Optical Society of America (Optica).
Aidi W. Zakaria
Petronas, Malaysia
Title: Photonics in Oil and Gas Industry: Enhancing Safety, Increasing Production, and Improving Environmental Monitoring
Abstract: Photonics technology is integral to the instrumentation used in oil and gas applications, enabling
precise and real-time monitoring essential for safety and environmental management. This
technology includes various types of gas analyzers, detectors, and advanced imaging systems that
leverage the unique properties of light to detect and measure gases and other substances.
Infrared (IR) gas analyzers are a cornerstone of photonics technology in this field. Non-Dispersive
Infrared (NDIR) analyzers measure gas concentration by detecting the absorption of infrared light at
specific wavelengths. This method is widely used due to its accuracy and reliability in identifying
gases based on their characteristic absorption patterns. Another significant IR technology is Fourier
Transform Infrared (FTIR) spectroscopy, which offers high-resolution spectra for the simultaneous
detection of multiple gases. FTIR ability to provide detailed spectral information makes it
invaluable for complex gas mixtures.
Laser-based gas analyzers represent another crucial application of photonics in the oil and gas
industry. Tunable Diode Laser Absorption Spectroscopy (TDLAS) employs tunable lasers to detect
specific gas absorption lines with high precision. This method is particularly effective for identifying
trace gases and monitoring their concentrations in real time. The tunability of the laser allows for
selective detection, enhancing the specificity and sensitivity of the measurements.
Ultraviolet (UV) gas analyzers are used to detect gases that absorb UV light, such as sulfur dioxide
(SO2) and nitrogen dioxide (NO2). These analyzers are essential for both environmental monitoring
and industrial process control, providing accurate measurements of pollutants and other gases that
have significant environmental and health impacts.
Raman spectroscopy is another photonics-based technique utilized in the oil and gas industry. It
analyzes light scattering to identify gases and their concentrations. This method provides a
molecular fingerprint of the gases, allowing for precise identification and quantification. Raman
spectroscopy non-destructive nature and ability to analyze gases in various states make it a
versatile tool.
Infrared gas detectors are also crucial in this sector. Point gas detectors measure gases at specific
locations, providing localized monitoring. In contrast, open path gas detectors monitor gases over
longer distances by measuring the absorption of infrared light across a defined path. This capability
is particularly useful for detecting gas leaks and ensuring the safety of large areas.
Hyperspectral cameras offer advanced fire and gas detection capabilities. These cameras capture
detailed spectral information over a wide range of wavelengths, allowing for the identification of
various substances and conditions. Their ability to provide comprehensive spectral data makes them
valuable for both safety monitoring and environmental assessment.
Optical smoke detectors utilize light scattering to detect smoke particles, making them an essential
photonics-based technology for fire detection. These detectors are highly sensitive and can provide
early warnings of potential fire hazards, thereby enhancing safety in oil and gas facilities.
In conclusion, photonics technology plays a vital role in the oil and gas industry by offering
sophisticated instrumentation for gas detection and environmental monitoring. These technologies
provide precise, real-time measurements that are crucial for maintaining safety and managing
environmental impacts. Through the use of IR and UV analyzers, laser-based techniques, Raman
spectroscopy, hyperspectral imaging, and optical smoke detection, photonics enhances the
industry's ability to monitor and control various parameters, ensuring operational efficiency and
safety.
Bio: Aidi graduated from Arizona State University in Electronic Engineering Technology and a member of the Institute of Engineering and Technology (IET, UK). He holds position of Principal Engineer, Instrument and Control (Measurement) and has more than 20 years of experience in handling instrumentation and control, specifically for analysers, environmental instrumentations, metering and fire and gas system issues in gas liquefaction, refineries, oil and gas productions and petrochemical plants including pipeline transmission network. He advises not only within his Group Technical Solution but also plant Petronas-wide on instrumentation and control issues. He was an Instrumentation Expert in few projects, such as Regassification Terminal 2 (RGT2), MLNG Satu Rejuvenation, and few of measurement related improvement project such as Refinery process optimization, and flare system improvement project. He was also responsible for charting the measurement and quantification technologies of methane emissions management for PETRONAS.
P Susitha Menon, Assoc Prof
Universiti Kebangsaan Malaysia, Malaysia
Title: Heptylamine Plasma Polymerization immobilized SPR Biosensor for Glucose Detection
Abstract: Non-communicable diseases (NCD) such as diabetes affects 18.3% of the Malaysian adult population. Noninvasive optical methods and biosensors to detect glucose levels will encourage more diabetic screening to be undertaken by the general population. In this work, we experimentally demonstrated a glucose biosensor by immobilizing glucose oxidase (GOx) by cross-linking via glutaraldehyde (GA) on plasma polymerized Heptylamine films (HApp) using the Kretchsmann-based surface plasmon resonance (K-SPR) method. Our findings confirmed an average sensitivity of 5.70 °/M for detecting glucose levels ranging from 8 mM to 20 mM at 785 nm. This study contributes to early detection of diabetes via optical biosensing, plasma polymerization and enzyme immobilization techniques.
Bio: P Susthitha Menon completed her B. Eng (Hons) degree at the National University of Malaysia or Universiti Kebangsaan Malaysia (UKM), Bangi, Malaysia specializing in Electric, Electronics and System Engineering in 1998 under the sponsorship of Intel Products Malaysia Pte. Ltd. After that, she worked at Intel Malaysia as a Product Engineer for mobile modules and motherboard systems until 2002 during which she had a 6-month stint as a product transfer engineer at Intel’s System Manufacturing and Technology Division (SMTD), Oregon, USA in 1999. In 2005, she completed her M.Sc. degree specializing in Microelectronics at UKM under the sponsorship of the Malaysian Ministry of Science, Technology and Innovation (MOSTI). Later, in 2008, she completed her Ph.D. degree (Optoelectronics) with Distinction at the Institute of Microengineering & Nanoelectronics (IMEN), UKM. She joined IMEN, UKM as a postdoctoral fellow in 2008 and subsequently in 2009, became a research fellow at IMEN, UKM specializing in the field of plasmonics, optoelectronics, nanophotonics, III-V materials, and robust engineering optimization. She is the principal investigator for 6 national projects under the Ministry of Education and has published more than 150 indexed international journals and proceedings. In 2012 and 2018, she received the Excellent Service Award from UKM. Her work earned her 2 Silver medals and 1 Bronze Medal at the 2015 Malaysian Technology Expo (MTE2015) and the “Most Innovative Idea” Award at the UNITEN Research Expo in 2014. Dr Menon is a Senior Member of the IEEE and Past Chair of the IEEE Electron Devices Malaysia Chapter which won the prestigious 2014 & 2018 IEEE Electron Devices Society (EDS) Region 10 Chapter of the Year Award and the 2017 & 2018 IEEE Malaysia Section Best Chapter Award. She was the Regional Editor of the IEEE EDS Newsletter for Region 10 (South East Asia and New Zealand) from 2015-2020 and is currently also a senior member of SPIE, Optica (formerly OSA) and a registered engineer with the Board of Engineers Malaysia (BEM). She is currently the Chair of IEEE Women in Electron Devices Society (WiEDS) and is the winner of the 2022 Outstanding Women in Engineering Volunteer in IEEE Malaysia Section.
Piotr Kolenderski, PhD
National Laboratory of Atomic, Molecular and Optical Physics, Torun, Poland
Title: Satellite communication and microscopy applications with single photons
Abstract: The last decades of the 20th century endowed us with experimental tools that can push the boundaries of our understanding of the surrounding world farther than ever before. Now, in the 21st century, it is possible to generate, control, and detect multiple features of single and entangled particles, providing strong grounds for today’s and future technologies. It is now clear that quantum technology has great potential to enable what was never possible before.
Quantum Communication (QC) technology has already been present on the market for several years thanks to a number of companies offering various commercial fiber-based quantum key distribution (QKD) systems. However, for QC to be ultimately useful, the existing schemes must allow for truly global applications. There are international programs aiming at satellite-based QC. Canada’s QEYSSat project [Proc. SPIE 11532, Environmental Effects on Light Propagation and Adaptive Systems III, 115320H (2020)] aims to develop a very small satellite, which will be economically attractive and have the potential to be commercialized and scaled up to a constellation. The main part of the project is to demonstrate uplink communication using an optical ground station and an entangled photon pair source. I will talk about a prototype of such a generator [Appl. Phys. Lett. 123, 144001 (2023)].
Similar technology can be used to generate quantum light for (quantum) microscopy. Controlled interaction of a single particle of matter with a single photon is the essence of fundamental experiments testing the theory of electronic structure of atomic systems or, in general, quantum electrodynamics. It is also a building block of quantum memories – devices allowing the storage and reliable retrieval of quantum states. The second part of my talk will be devoted to experiments on photon-matter interaction [Opt. Express, 29, 564 (2021)], where a sample is illuminated with a single photon [Opt. Lett., 43, 6085 (2018)].
Bio: Piotr Kolenderski received his Master’s and Ph.D. degrees from Nicolaus
Copernicus University (NCU), Toruń, Poland. He is currently an Associate
Professor with the Institute of Physics at NCU. He pursued his
postdoctoral fellowship with the Institute for Quantum Computing (IQC),
Waterloo, Canada, as a Laureate of the “Mobility Plus” Program from the
Ministry of Science and Higher Education of Poland. Since 2013, he has
been an Associate Professor with the Institute of Physics at NCU, where
he leads the Single Photon Applications Laboratory research group. His
research interests include the generation, detection, and control of
single photons and their applications in quantum communication,
photon-matter interaction, and quantum optical coherence tomography.
Apart from IQC, he collaborates with Politecnico di Milano, Italy;
Universiti Malaysia Perlis, Malaysia; Palacký University Olomouc, Czech
Republic; Ulm University, Germany; and the industry sector, including
Arobs Polska, Poland; Work Microwave GmbH, Germany; and Exatel, Poland.
Additionally, he is involved in projects related to optical
communication and quantum internet for the European Space Agency.
Raja Kamarulzaman Raja Ibrahim, Assoc Prof
Universiti Teknologi Malaysia, Malaysia
Title: Development of Laser Induced Breakdown Spectroscopy (LIBS) system for elemental analysis in food samples.
Abstract: Laser induced breakdown spectroscopy (LIBS) is a rapid analytical technique for elemental analysis. In LIBS, a high energetic laser pulse is used to ablate small amounts of material and converts it into a plasma plume which breaks down into excited ionic and atomic species. An optical emission spectrometer (OES) is used to collect the emission from the plasma plume where elemental identification is determined based on emission lines. LIBS is a straightforward technique for solid sample such as metal. However, food samples in the form of liquid, semi-solid, brittle or soft solid are more challenging due to poor in laser – material interaction thus produces weak LIBS signal. This work focuses on development of “in-house” LIBS system which capable to be used for food samples including in liquid and soft solid samples. Some strategies to overcome the poor laser – material interaction in food samples were evaluated including technique in material preparation and working at very low sample temperature. Experimental results revealed that, enhancement of LIBS signal has been tremendously achieved. However, a new problem arises from frost formation due to very low sample temperature about -25 ᵒC leading to broad emission lines in LIBS signal. Further improvement on the LIBS system to overcome this line broadening will be discussed.
Bio: Raja Kamarulzaman Raja Ibrahim received his B.Sc in Material Physics from Universiti Teknologi Malaysia in 2002. M.Phil in Optoelectronic from University of Southampton, United Kingdom in 2005 and PhD in Chemical Engineering and Analytical Science from The University of Manchester, United Kingdom in 2011. He has been an Associate Professor in the Department of Physics, Faculty of Science since 2020. His research interests include plasma diagnostic and applications, fibre Bragg grating sensors and various optical spectroscopy techniques including for medical device applications. His current research is on development a low temperature laser induced breakdown spectroscopy system capable for liquid and soft solid organic samples. Also, he recently secured a research grant focuses on development of hybrid catalysis for dry reforming methane by means non-thermal plasma technology.
Tianhua Xu, Assoc Prof
University of Warwick, United Kingdom
Title: Fast and Accurate Optical Fiber Channel Modeling Using Bi-Directional Long-Short Term Memory Algorithms
Abstract: We discuss the use of Bi-directional Long-Short Term Memory (BiLSTM) and feature decoupling distributed- BiLSTM (FDD-BiLSTM) as alternatives to the split-step Fourier Method (SSFM), which can significantly reduce the computa- tional load while maintaining or enhancing accuracy in modeling optical fiber channels.
Bio: Dr. Tianhua Xu received his PhD degree in School of Information and Communication Technology, at KTH Royal Institute of Technology, Sweden. His current research interests include optical communication systems and networks, intelligent signal processing, machine learning techniques, optical sensing systems and opto-electronics. He is a Senior Member of the American Physical Society (APS), a Fellow of the Higher Education Academy, and a Fellow of the Royal Statistical Society. He is an Associate Editor of IEEE Access and Journal of the European Optical Society-RP. He has been the Chair of Optics in Digital Systems Technical Group in Optical Society of America (Optica), and the TPC co-chair/members of over 20 IEEE conferences, e.g. GLOBECOM, ICC etc. He has received grants from EU Horizon 2020, EU Horizon Europe, the UK Royal Society, and UK National Grid. He has published over 160 journal and conference papers (including over 30 invited) and 2 invited book chapters.
Tiu Zian Cheak, Prof
INTI International University, Malaysia
Title: Ultrafast Fiber laser: From Bright to Dark
Abstract: A decade ago, dark pulse was defined as “A solution looking for a problem”. To date, dark pulse has proven its potential in telecommunication, sensing and other industries. Dark pulse exhibits extraordinary propagation properties which draws research interest in dark pulse as a replacement for bright pulse. The research on development of dark pulse was hesitant to move forward after it was first demonstrated as it required careful selection of laser cavity parameters. Here, we present the progression of experiments conducted to generate dark pulse and subsequently to classify them accordingly as Nonlinear Schrodinger Equation (NLSE) dark pulse, Cubic-Quintic nonlinear Schrodinger Equation (CQNLSE) dark pulse and domain wall (DW) dark pulse.
Bio: Prof. Tiu Zian Cheak has received his PhD in Engineering from the University of Malaya. He has been recognized as Professional Engineer (BEM) and Chartered Engineer (IET) in Electronics Engineering field. He has accumulated 16 years of working experience in tertiary education and focuses on photonics engineering research.
Currently, Prof. Tiu is working as Director, Center for Sustainable Engineering Solutions, INTI International University, Malaysia. Besides, he is holding some international academic responsibilities, including Associate Editor for Optics & Laser Technology (Elsevier), Visiting Scholar for Tsinghua University, China, Adjunct Professor for Vellore Institute of Technology, Indian & etc.
Yosuke Tanaka, Prof
Tokyo University of Agriculture and Technology (TUAT), Japan
Title: Two-photon absorption process in silicon photodetector and its application to fiber optic sensors
Abstract: Two-photon absorption (TPA) process in a photodetector (PD) has long been applied to measuring short optical pulses in the field of scientific research and high-speed photonics systems. To the best of our knowledge, we are the first research group that proposed applying TPA process in a PD to fiber optic sensors. Using TPA process, the intensity correlation between high-speed signals can be measured over a wide frequency bandwidth without using sophisticated high-frequency electrical circuits. From the works we have been working on, we will address some recent research on the fiber optic sensing systems that use TPA process in the signal processing, including multi-point fiber Bragg grating sensors and a fiber optic three-dimensional bending sensor.
Bio: Yosuke Tanaka received the B.E. degree in electronic engineering and the M.E. and Dr. Eng. degrees in electrical engineering from the University of Tokyo, Tokyo, Japan, in 1991, 1993, and 1996, respectively. After working at Shizuoka University, Shizuoka, Japan, as a Research Associate, he joined Tokyo University of Agriculture and Technology, Tokyo, in 1999, where he is currently a Professor. His research interests include the fiber optic sensing and its related subjects, including laser-based precision measurement, high speed optical signal processing, application of optical frequency comb, and fiber optic power supply. He is a member of the Institute of Electrical and Electronics Engineers (IEEE), Optica, the International Society for Optics and Photonics (SPIE), the Institute of Electronics, Information, and Communication Engineers (IEICE), and the Japan Society of Applied Physics (JSAP).
