Characteristics of stable L-band SFS using dual-forward synchronous pumping technique

作     者：王秀琳 黄文财 许惠英 蔡志平 

作者机构：Department of Physics Xiamen University Department of Physics Jimei University Department of Electronic Engineering Xiamen University 

出 版 物：《Chinese Optics Letters》 (中国光学快报（英文版）)

年 卷 期：2009年第7卷第7期

页      面：568-571页

核心收录：

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：supported by the Program for New Cen-tury Excellent Talents in Fujian Province University (No.X07204) the Scientific and Technical Project of Fujian Provincial Department of Education (No. JA08138) the Key Scientific and Technical Innovation Project of Xiamen University (No. K70007) 

主　　题：Erbium Fibers Linewidth 

摘      要：We investigate the characteristics of the dual-forward synchronously pumped L-band erbium-doped su- perfiuorescent fiber source （SFS）. The effects of pump ratio and fiber length arrangements on the output characteristics of the L-band SFS in terms of mean wavelength, spectral linewidth, and output power are analyzed. It is shown that the optimized pump ratio and fiber length arrangements provide broadening spectral linewidth and enhanced pumping efficiency, while the synchronous pump ensures stable mean wavelength operation. A new single-forward pumping scheme with a section of unpumped fiber is pro- posed to achieve a mean wavelength stable L-band SFS with a broadening linewidth of 50.4 nm and a pumping efficiency of 33.5%.