学术动态

A ring resonator device exhibits many attractive functions as optical communications and signal processing building block, such as wavelength selection, excellent operating efficiency (due to resonance effect), compactness and flexibility (via multiring design). With rapid advancement of CMOS processing technology, high quality ring devices have been fabricated and applied to many applications: such as optical filter, modulator, sensor, wavelength switch, and others. A silicon photonics based ring device of great interest for both research and application is the SOI micro-ring device. With a small ring radius (~2.5 micron), the ring resonator exhibits a FSR greater that 40nm, that covers the entire c-band. Thus it can be utilized for many current and future broad band WDM applications. Micro-ring devices have been reported with exciting performance features. However a number of abnormal features of micro-ring devices have not been specifically addressed. These properties, that are related to the nature of highly confined mode (SOI) and large index change at the coupling region (small radius), can produce many nanostructure related behaviors that can have great impact to the ring resonator properties. In this talk, we will present detailed theoretical and experiment results to highlight them. We show, by incorporate the micro-ring resonator characteristics, one can design advanced optical devices, like optical modulators, based on the unique photon dynamics of the micro-ring resonator.

Chen, Yung Jui (Ray)  陳永睿

Prof. Chen graduated from the Physics Department of National Tsing Hus University with high honor in 1969. He received the PhD in Solid State Physics from University of Pennsylvania in 1976. After working at McDonnell Douglas and GTE Laboratories for ten years, he joined UMBC in 1987. He was instrumental in building the Electrical Engineering Department at UMBC as one of the leading research institutions in Optical Communications and Signal Processing. In 2011 he joined the Department of Photonics at NSYSUF to fulfill his desire to bring his knowledge and service back home. Professor Chen carried out research in linear and nonlinear optics physics and materials, nonvolatile semiconductor devices, circuits and systems (wafer scale integration), surface effects of metal and semiconductor, III‐V quantum well materials and devices, integrated photonic technologies of advanced optoelectronic components and subsystems for optical communications and networking applications. More recently, he is also actively involved in research of optical network architectures and management aiming at taking advantage of the advanced WDM optical components and subsystems in dynamically reconfigurable optical networks and data center/high performance computing networking applications. Because of Prof. Chen’s renowned activity in the field, he was and has been a consultant to many key WDM component companies, Corning, Little Optics, ANDevices and ITRI, to name just a few. Prof. Chen is a fellow of OSA (2003) and Photonics Society of Chinese American (2000). He was also the Presidential Research Professor of UMBC (2002‐4) and currently the Chair Professor of NSYSU (2011 to current).