|
KEYNOTE SPEAKERS
Keynote Speaker 1
Title: "Amazing Photonics Sensors: Structural Health and Condition Monitoring of Large Systems"
Professor Dr. Hwa-yaw TAM
Chair Professor of Photonics
Department of Electrical Engineering
Hong Kong Polytechnic University
Hwayaw Tam, received the B.Sc. degree in 1985 and the Ph.D. in 1990 in Electrical and Electronic Engineering, both from The University of Manchester, UK. From 1989 to 1993 he was with Hirst Research Center, GEC-Marconi Ltd. in the UK, first as a Research Scientist, then as a Senior Research Scientist working on wavelength-division multiplexing systems, high-speed optical communication links and erbium-doped fiber amplifiers. He also worked briefly for Marconi-Italiana of Italy as a consultant before joining the Department of Electrical Engineering of the Hong Kong Polytechnic in January 1993. Currently, he is a Chair Professor of Photonics of the Department of Electrical Engineering at The Hong Kong Polytechnic University. Prof. TAM is also the Director of the Photonics Research Centre, Faculty of Engineering at the same university. His current research interests are fibre-optics sensors, photonics sensor networks, optical fibre communications, all-optical signal processing, fibre-optics devices, optical fibre amplifiers and lasers, and optoelectronics components. Prof. Tam has secured over HK$40 million research funding since 1995. He has published over 250 technical papers and holds six patents in the areas of fiber-optics. Several of his inventions also won international awards. Prof. Tam has a number of R & D projects working with companies both locally and overseas in the areas of optical fiber amplifiers and sensors. His group has installed photonics sensors on the TsingMa Bridge in Hong Kong, KCRC (HK) rail tracks, MRTC (HK) civil structure and oil tanks in China. Prof. Tam is a Chartered Engineer, a senior member of the IEEE and a member of IEE.
Abstract
The concept of distributed or quasi-distributed sensing is mainly promoted by optical fibres. In these sensing systems, a single optical fibre can serve as a distributed sensor to substitute for hundreds of conventional point sensors. in this talk, the principle and applications of various photonics distributed sensing techniques, fibre Bragg grating sensors and their various multiplexing techniques will be introduced. Fibre Bragg grating are essentially small lengths (as short as 1-mm) of singlemode fibre with periodic refractive-index variation in the 9-µm cores of optical fibre. Depending on the period, fibre Bragg grating can be created to reflect narrow band of spectrum at virtually any wavelength. The reflection wavelength is sensitive to temperature and strain and thus could be used as sensors. The unique multi-functionality feature of FBG-based sensors to measure temperature, strain, inclination, acceleration, etc. using a single fibre will be highlighted in this talk. The engineering issues and applications of fibre Bragg grating sensors for industrial projects in condition-monitoring of high-speed (350km/hr) railway systems, and structural health monitoring of the world's tallest Canton Tower - 610m, will be discussed.
More about Prof. Haw-yaw TAM...
Keynote Speaker 2
Title: "Ultrafast Photonic Integrated Circuits: Towards Terabit Optical Processors"
Dr. Christian Grillet
Senior Research Fellow
School of Physics
and
Project Manager
Centre of Excellence for Ultrahigh-bandwidth Devices for Optical Systems (CUDOS)
University of Sydney
Christian Grillet received his Ph.D. degree in electronic integrated devices from Ecole Centrale de Lyon, France, in 2003. His research included the design, nanofabrication and characterization of InP planar photonics crystal devices for optical interconnections and telecommunications. He join the CUDOS group at the University of Sydney in 2004. He has been involved in projects combining integrated microphotonics and mirofuidics. his research is currently focus on nonlinear 2D planar photonic crystal devices for all-optical signal processing.
Abstract
This talk will review our progress on developing photonics integrated circuits based on breakthroughs in highly nonlinear materials and nanophotonics. We have demonstrated all-optical ultrafast information processing and we have demonstrated a monolithic integrated photonics chip with terabit per-second bandwidth. Our approach takes advantage of different ultrafast nonlinear processes, such as four-wave-mixing and stimulated Raman scattering processes and also exploits dispersion engineering and slow-light effects. I will present our recent record-breaking results demonstrating information processing at terabit per second speeds and will discuss prospects for implementation in next generation high bandwidth information systems.
INVITED SPEAKERS
Invited Speaker 1
Title: “Polymer Photonics Nanowire Devices”
Professor Dr. Baojun Li
State Key Laboratory of Optoelectronic Materials and Technologies
School of Physics and Engineering
Sun Yat-Sen University
This e-mail address is being protected from spambots. You need JavaScript enabled to view it
Abstract
The development of nanotechnology in photonics offers significant scientific and technological potentials. It fosters the substantial efforts for exploring novel photonic materials, developing easy device fabrication techniques, reducing the size of photonic devices, improving device integration density, and fabricating low-cost nanodevices. Since nanometer-scale photonic wires are highly desirable for applications in high density and miniaturized photonic integrated circuits, so subwavelength-diameter wires were fabricated in silica fiber, bulk glass, compound-glass fiber, etc. Meanwhile, miniaturization of photonic devices is being intensively focused because they drive great developments in the fields of optical communications, biophotonics, engineered structures, and photonic integrations. Poly Trimethylene Terephthalate (PTT) is a relatively novel polymer material which was extracted from petroleum or refined from corn. In this talk, good transparency of PTT from visible lights to near-infrared and its application for the first time in nanophotonics will be introduced. Subsequently, flexible and elastic nanowires with diameters down to 60 nm and lengths up to 500 mm, which were drawn by a one-step drawing process from the PTT melt, will be presented followed by a number of devices (nanosplitters, nanocouplers, nanorings, nanoresonators, nanotweezer, nanoscissor, nanoscrewdriver, nanobird’s nest, nanosensor, etc.) and nanophotonic device arrays, which were assembled by the PTT nanowires.
Invited Speaker 2
Title: “Optical Phase Conjugation in Chalcogenide Planar Waveguides for Signal Distortion Compensation"
Dr. Feng Luan
Assistant Professor
Division of Communication Engineering
School of Electrical & Electronic Engineering
College of Engineering
Nanyang Technological University
Singapore
Abstract
Dispersion engineered chalcogenide planar waveguides offer low dispersion and high pure Kerr nonlinear response (10,000/W/km) without nonlinear loss and free carrier effects limitations. We report optical phase conjugation of wavelength multiplexed signals using such waveguide inserted along a transmission link. Distortion compensation of 3x40Gb/s RZ-DPSK signals propagating through 225km of standard single mode fibre is achieved without using dispersion compensation fibre (DCF).
Invited Speaker 3
Title: "Quantum Internet"
Professor Dr. Jalil Ali
Director
Bureau of Innovation & Consultancy
Institute of Advance Photonics Science
Faculty of Science
Universiti Teknologi Malaysia
Qualifications
B. Sc. (Hons ), Physics, University of Malaya, 1982
MSc. (Nuclear Fusin), University of Malaya, 1985
Ph.D (Nuclear Fusion/Laser), Universiti Teknologi Malaysia, 1990
Abstract
We propose a new system of quantum cryptography for internet security using Gaussian pulses propagating within a nonlinear ring resonator system, quantum processor and a wavelength router. To increase the channel capacity and security, the multiplexer is operated incorporating a quantum processing unit via an optical multiplexer. The transmission part can be used to generate the high capacity quantum codes within the series of micro ring resonators and an add/drop filter. The receiver part can be communicated by using the quantum key (quantum bit, qubit) via a wavelength router and quantum processors. The reference states can be recognized by using the cloning unit, which is operated by the add/drop filter, where the communication between Alice and Bob can be performed. (The names Alice and Bob are commonly used placeholder names for archetypal characters in fields such as cryptography and physics).
Invited Speaker 4
Title: "SOI-Based Optical Modulators for Silicon Photonics Applications"
Professor Dr. Sahbudin Shaari
Principal Research Fellow
Institute of Microengineering and NanoelectronicsProfessor Preecha Yupapin
Universiti Kebangsaan Malaysia
Abstract
Recently, silicon photonics has become the most viable solution to overcome the shortcomings of copper-based signalling technologies as the demand for greater bandwidth in data communications and processing continue to grow at an exponential rate. Optical data transmission allows much higher data rates compared to metal wires and there are no electromagnetic interference issues involved. The advantages of silicon processing are its fabrication simplicity which is compatible with current complementary-metal-oxide-semiconductor (CMOS) manufacturing techniques. Silicon also has a wide band infrared optical transparency, low noise, high heat conductance and is able provide three-dimensional platforms and packages. Some promising applications of silicon photonics are in the fields of optical interconnect low cost telecommunications and optical sensors. The current prevailing vision for silicon photonics is to integrate optics and microelectronics monolithically on the same chip. Some common Si-based materials being used currently are silicon-on-insulator (SOI), SiGe alloys and strained Si. A typical photonic system comprises of lasers, modulators, waveguides and photodetectors. The date there are no viable electrically pumped silicon lasers available although work in this area is ongoing at an unprecedented rate. In this paper, we review our work on SOI-based optical micro ring modulators which serve as ideal channel-dropping filters for coarse wavelength division multiplexing (CWDM) applications at 1550 nm optical wavelength. The effects of doping concentration and carrier injection rate on the device refractive index as well as modulation angle is evaluated using numerical-based simulators both at 1310 and 1550 nm optical wavelengths.
More about Professor Dr. Sahbudin Shaari..
Invited Speaker 5
Title: “Nanoscale Signal Processing for Hybrid Computer Communications”
Professor Dr. Preecha Yupapin
Head
Advance Research Center for Photonics & Applied Physics Department
Faculty of Science
King Mongkut's Institute of Technology Ladkrabang
Bangkok, Thailand
Abstract
Nanotechnology has been recognized as the interesting subject of research and investigation in either theory or experiment for a decade, where many research works and implementations have shown the significant growth and progress in many related technologies. Recently, the use of a small waveguide known as micro and/nanoring resonators has shown the potential of applications in many research areas, especially, in computer, communication and signal processing in the nanoscale regime. Therefore, in this paper we present the immerging techniques that can be merged into one particular subject, which is known as "Nano Communication Networks". In applications, such devices, techniques or systems can be integrated and used for some particular applications. The covering chapters of this proposed book are detailed as following: Optical and quantum signal processing techniques, Optical computer, Molecular transported, DNA computer, Atom computer, Hybrid computer, Hybrid communication and networking, Ad Hoc network, Nanoscale signal processing calibration and standard.
|
