Tunable single-longitudinal-mode SOA-based fiber laser based on the spectral narrowing effect in a dispersion-shifted fiber  

作　　者：Zhenkun Shen Lin Wang Vuan Cao Xudong Wang Xinhuan Feng and Bai-Ou Cuan 沈振坤;王琳;曹元;王旭东;冯新焕;关柏鸥(Guangdong Provincial Key Laboratory of Optical Fiber Sensing and Communications,Institute of Photonics Technology,Jinan University)

机构地区：Guangdong Provincial Key Laboratory of Optical Fiber Sensing and Communications, Institute of Photonics Technology, Jinan University, Guangzhou 510632, China

出　　处：《Chinese Optics Letters》2017年第10期25-27,共3页中国光学快报（英文版）

基　　金：supported by the National Natural Science Foundation of China(No.61475065);the Guangdong Natural Science Foundation of China(No.2015A030313322)

摘　　要：A tunable single-longitudinal-mode（SLM） semiconductor optical amplifier（SOA）-based fiber laser based on a dispersion-shifted fiber（DSF） is proposed and successfully demonstrated. SLM operation is obtained due to the spectral narrowing effect resulting from inverse four-wave mixing in a DSF. A tunable optical filter performs wavelength selection function. By inserting a length of DSF in the laser cavity, SLM lasing can possibly be obtained when laser oscillation is stably established after traveling through the DSF many roundtrips. Stable tunable SLM oscillation with a signal-to-noise ratio as high as 65 dB over a wavelength range of about 35 nm is achieved experimentally, and each spectral linewidth is less than 6.5 kHz.A tunable single-longitudinal-mode（SLM） semiconductor optical amplifier（SOA）-based fiber laser based on a dispersion-shifted fiber（DSF） is proposed and successfully demonstrated. SLM operation is obtained due to the spectral narrowing effect resulting from inverse four-wave mixing in a DSF. A tunable optical filter performs wavelength selection function. By inserting a length of DSF in the laser cavity, SLM lasing can possibly be obtained when laser oscillation is stably established after traveling through the DSF many roundtrips. Stable tunable SLM oscillation with a signal-to-noise ratio as high as 65 dB over a wavelength range of about 35 nm is achieved experimentally, and each spectral linewidth is less than 6.5 kHz.

关 键 词：SLM DSF SOA Tunable single-longitudinal-mode SOA-based fiber laser based on the spectral narrowing effect in a dispersion-shifted fiber 

分 类 号：TN248[电子电信—物理电子学] TN929.11