Title :
A novel distributed feedback fiber laser based on equivalent phase shift
Author :
Jiang, Dianjie ; Chen, Xiangfei ; Dai, Yitang ; Liu, Haitao ; Xie, Shizhong
Author_Institution :
Dept. of Electron. Eng., Tsinghua Univ., Beijing, China
Abstract :
A distributed feedback fiber laser employing an equivalent phase shift (EPS) of π is studied theoretically and experimentally for the first time. The EPS is formed through extending one sampling period by 50% in the center of a sampled Bragg grating. An output power of 0.20 mW with sidemode suppression of 67 dB is experimentally observed.
Keywords :
Bragg gratings; distributed feedback lasers; fibre lasers; optical phase shifters; 0.2 mW; distributed feedback laser; equivalent phase shift; fiber laser; sampled Bragg grating; sidemode suppression; Bragg gratings; Chirp; Distributed feedback devices; Erbium-doped fiber lasers; Fiber gratings; Fiber lasers; Laser feedback; Laser theory; Optical reflection; Sampling methods; Fiber Bragg grating (FBG); fiber laser; phase shift;
Journal_Title :
Photonics Technology Letters, IEEE
DOI :
10.1109/LPT.2004.836356
