single-longitudinal-mode;
fiber ring laser;
FBG-based F-P filter;
D O I:
10.1016/j.optcom.2006.06.024
中图分类号:
O43 [光学];
学科分类号:
070207 ;
0803 ;
摘要:
A single-longitudinal-mode (SLM) fiber ring laser is demonstrated by incorporating a fiber Bragg grating (FBG)-based Fabry-Perot (F-P) filter and a variable saturable absorber in a fiber ring cavity. An ultra-narrow bandpass filter is established by the combined mode filtering of the FBG-based F-P filter and the variable saturable absorber. No accurate control for cavity length is required, and stable single longitudinal-mode operation without mode hopping is conveniently achieved. (c) 2006 Elsevier B.V. All rights reserved.