Measurement of linewidth enhancement factor of SOA using fiber Sagnac Ring

作     者：GAO Hua-li WU Chong-qing LI Ya-jie NI Dong 

作者机构：School of Science Beijing Jiaotong University Beijing 100044 China 

出 版 物：《Optoelectronics Letters》 (光电子快报（英文版）)

年 卷 期：2006年第2卷第2期

页      面：142-144页

学科分类：080901[工学-物理电子学] 0809[工学-电子科学与技术（可授工学、理学学位）] 08[工学] 080401[工学-精密仪器及机械] 0804[工学-仪器科学与技术] 0803[工学-光学工程] 

基　　金：SupportedbytheNationalNaturalScienceFoundationofChina(GrantNo.60272010)andNational863project(NO.2002AA122510) 

主　　题：光学纤维 线宽 半导体光学放大器 SOA 光学开关 

摘      要：Semiconductor optical amplifiers (SOA) are optical amplifying devices and key parts in optical switches and optical *** are largely used in communication *** enhancement factor is an important parameter for SOA.A method is proposed to measure the linewidth enhancement factor with Sagnac *** phase modulation (XPM) and cross gain modulation (XGM) coexist in *** quantitative relation of linewidth enhancement factor to XGM and the interference extinction ratio is *** experimental results indicate that the value of linewidth enhancement factor changes from 5.13 to 6.24 when the electric current varies from 130 mA to 240 mA.