光子集成芯片与多维光信号处理研讨会

9:00-9:40

Prof. Yung-Jui Chen

National Sun Yat-sen University, Kaohsiung, Taiwan

Title: Silicon Photonics for Current and Future Applications in Information Technology

Abstract:

The relentless push toward the Moore’s law limits by integrated circuit (IC) industry produces excellent nano-scale silicon fabrication processes that pave a bright future for the silicon photonics technology. The current silicon photonics platform is based on SOI waveguides which exhibit a large index contrast between core (Si) and cladding (SiOx) materials. It leads to a strong mode confinement in Si waveguide that yields highly dense planar lightwave circuits. Silicon photonics possesses the unique advantages of: CMOS compatibility for low cost high yield production; integrate-able to VLSI circuits for control and functionality intelligence; and a full arsenal of passive and active components for communications, networking, signal processing and sensor operations. Applications of information technology based on silicon photonics includes broad band interconnects that take advantage of optical communication channels for both short and long hauls.; Integrated signal processing solutions of optical communication signals that utilize the polarization, phase and wavelength characteristics of photons; Highly integrated optoelectronic circuits for various sensor applications; Integrated optoelectronic circuits with intelligent electronic circuits for current and future information technological applications.

In this tutorial talk, we will briefly review the evolution and development of silicon photonics technology and highlight a few exciting current and future applications.  One of the most important up-and coming technology areas is Internet of Things (IoT) that combines smart sensors, broad band communications, and big data analysis.  Silicon photonics technology is uniquely positioned as the enabling technology platform.

9:40-10:20

Prof. Chao Lu

The Hong Kong Polytechnic University, Kowloon, Hong Kong

Title: Transmission Techniques for Inter and Intra Data Centre Systems

Abstract: The proliferation of optical transmission technology in high capacity data centre systems has driven the research study on techniques that can enable low cost, low energy consumption transmission over short distance. The focus has been on direct detected systems due to cost and energy concerns. High order modulation schemes with direct detection has been investigated since the bandwidth of optical components utilized in such systems is typically much lower than desired data rate. Here we describe the study we have carried out on a number of modulation schemes and corresponding digital signal processing employed to optimize system capacity. The focus will be on direct detected polarization multiplexing schemes. Theoretical study and experimental demonstration will be highlighted. Some of the key challenges and future perspectives will be discussed.

10:20-11:00

Dr. Chongjin Xie

Alibaba Labs

Title: 数据中心光通信技术

Abstract: 报告讨论了数据中心的光通信技术，包括数据中心内部光互连技术以及连接数据中心间的光网络技术。报告阐述了数据中心光通信技术的发展现状、数据中心对光连接技术的要求、面临的挑战以及对未来发展的思考。

11:00-11:10

Break

11:10-11:50

Dr. Liangchuan Li

Huawei Technologies Co., Ltd

Title: 超100G光传输技术趋势

Abstract: 展望未来光网络的先进调制技术及趋势。

11:50-12:30

Dr. Xuming ZHANG

The Hong Kong Polytechnic University, Kowloon, Hong Kong

Title: Artificial photosynthesis of glucose using solar photocatalysis

Abstract: Solar energy is the fundamental energy source of human being. Recent years have witnessed a rapid increase of research interest in the photocatalysis technology that focuses on the conversion of solar energy into chemical energy, such as the degradation of organic pollutant, the splitting of water into hydrogen and the capture of CO2 into energy-rich carbohydrates. However, the current photocatalysis technology has the fundamental problems such as mass transfer limit, photon transfer limit, electron/hole recombination, oxygen deficiency/removal and many others. To overcome these problems, our group has explored the microfluidics technology and has found that it can significantly improve the efficiency of photodegradation of organics. Recently, we have attempted to generate glucose using CO2 and sunlight by replicating the photosynthetic processes in a microfluidic chip, and have successfully realized the functions of NADPH regeneration, glucose conversion and deoxygenation. This work may lead to a new route to producing basic food materials like sugar and starch using factory-like production lines.

Brief Bio:

Prof. Chao Lu obtained his BEng in Electronic Engineering from Tsinghua University, China in 1985, and his MSc and PhD from University of Manchester in 1987 and 1990 respectively. He joined the School of Electrical and Electronic Engineering, Nanyang Technological University, Singapore as Lecturer in 1991 and has been an Associate Professor since January 1999. From June 2002 to December 2005, he was seconded to the Institute for Infocomm Research, Agency for Science, Technology and Research (A*STAR), Singapore, as Program Director and Department Manager, helping to establish a research group in the area of optical communication and fibre devices. Since April 2006, he has been a Professor in the Department of Electronic and Information Engineering, Hong Kong Polytechnic University. His research interests are optical communication systems and networks, fibre devices for optical communication and sensor systems.

Dr. ZHANG, Xuming

B.Eng., University of Science & Technology of China (USTC), CHINA

M.Eng., Shanghai Institute of Optics &Fine Mechanics, Chinese Academy of Sciences, CHINA

M.Eng., National University of Singapore (NUS), SINGAPORE

Ph.D.,  Nanyang Technological University, SINGAPORE

 Associate Professor

Department of Applied Physics, Hong Kong Polytechnic University

Tel. :  (852) 3400 3258
Fax.:  (852) 2333 7629 
Email: apzhang@polyu.edu.hk 
My Web Page: http://ap.polyu.edu.hk/apzhang