High Speed Electro-Absorption Modulators for Digital and Analog Optical Fiber Communications  

作　　者：Xiong Bing Xu Jianming Sun Changzheng Wang Jian Luo Yi 

机构地区：[1]Tsinghua National Laboratory for Information Science and Technology/State Key Laboratory on Integrated Optoelectronics, Department of Electronic Engineering, Tsinghua University, Beijing 100084

出　　处：《China Communications》2009年第3期110-114,共5页中国通信（英文版）

基　　金：supported by National ScienceFoundation Programs(60536020,60723002);"973"State Key Basic Research Programs(2006CB302800,2006CB921106)

摘　　要：An electro-absorption(EA)modulator is one of key components for optical fiber communications due to the high speed,small size,low voltage and integration ability with other semiconductor devices.A 40 Gb/s InGaAsP/InP multiplequantum-well(MQW)EA modulator monolithically integrated with a semiconductor optical amplifier(SOA)was fabricated for digital communications.The modulator capacitance was reduced to obtain 40 GHz bandwidth,and the SOA section helped reduce the insertion loss from 18 dB to 3 dB.InGaAlAs/InP MQW EA modulators have also been fabricated and characterized for analog optical fiber communications.A low driving voltage of 2.7 V and high spurious free dynamic range of 107 dB·Hz2/3 were estimated by static and dynamic measurements.An electro-absorption （EA） modulator is one of key components for optical fiber communications due to the high speed, small size, low voltage and integration ability with other semiconductor devices. A 40 Gb/s InGaAsP/InP multiple-quantum-well （MQW） EA modulator monolithically integrated with a semiconductor optical amplifier （SOA） was fabricated for digital communications. The modulator capacitance was reduced to obtain 40 GHz bandwidth, and the SOA section helped reduce the insertion loss from 18 dB to 3 dB. InGaAlAs/InP MQW EA modulators have also been fabricated and characterized for analog optical fiber communications. A low driving voltage of 2.7 V and high spurious free dynamic range of 107 dB·Hz^2/3 were estimated by static and dynamic measurements.

关 键 词：electro-absorption modulator digital optical communication analog optical communication photonic integration 

分 类 号：TN929.11[电子电信—通信与信息系统]