题目：New Optical Fibres for Broadband Applications

报告人：Prof.Gang-Ding Peng, University of New South Wales

主持人：陈振强 教授

时间：2016年12月5日（星期一），上午10点

地点：蒙民伟理工楼414会议室

Abstract:

This brief presentation introduces Bi/Er codoped optical fibres - one of the recent research topics engaged in POCG. In recent years intensive research has shown broadband luminescence in the range of 1100 to 1500 nm, across O, E and S bands of the telecommunications window from glasses or materials with Bi-doping and Bi/Er codoping. This presentation will report our research on active optical fibres based on new material compositions incorporating Bi, Er and Al into phosphogermanosilicate glasses. Emission and absorption are two main properties of active optical fibers that are of interest for fiber amplifiers and lasers. Hence, we report the recent development of Bi/Er/Al codoped phosphogermanosilicate optical fibres showing ultra broadband luminescence between 1000 and 1570 nm, covering O, E, S, C, and L bands, when pumped by 532, 808, or 980 nm lasers. This type of new material composition optical fibres is designed for potential use as an ultra broadband gain medium for ultra broadband amplified spontaneous emission (ASE) sources, tunable fibre lasers, or ultra broadband amplifiers in telecommunications and in other fields.

Biography:

Gang Ding Peng received the B.Sc. degree in physics from FudanUniversity, Shanghai, China, in 1982, and the M.Sc degree in applied physics and the Ph.D. degree in electronic engineering from ShanghaiJiaoTongUniversity, Shanghai, China, in 1984 and 1987, respectively. From 1987 through 1988 he was a lecturer of the JiaoTongUniversity. He was a postdoctoral research fellow in the Optical Sciences Centre of the AustralianNationalUniversity, Canberra, from 1988-1991. He has been working with University of NSW in Sydney, Australia since 1991, was a Queen Elizabeth II Fellow from 1992-1996 and is currently a Professor in the same university. He is a fellow and life member of both OSA and SPIE. His research interests include optical fibre and waveguide devices, silica and polymer optical fibres, optical fibre sensors and nonlinear optics.