DocumentCode :
1494143
Title :
A Single Longitudinal-Mode Tunable Fiber Ring Laser Based on Stimulated Rayleigh Scattering in a Nonuniform Optical Fiber
Author :
Zhu, Tao ; Bao, Xiaoyi ; Chen, Liang
Author_Institution :
Dept. of Phys., Univ. of Ottawa, Ottawa, ON, Canada
Volume :
29
Issue :
12
fYear :
2011
fDate :
6/15/2011 12:00:00 AM
Firstpage :
1802
Lastpage :
1807
Abstract :
We have realized a novel tunable narrow linewidth fiber laser with single-longitudinal-mode operation based on the homogenous gain broadening effect of Er-doped fiber and the stimulated Rayleigh scattering (STRS) in a nonuniform optical fiber in a ring laser configuration. A 3 dB linewidth of less than 2.0 kHz is achieved with 70 dB extinction. The minimum tunable laser bandwidth is determined by the balance of the bandwidth of tunable bandpass filter (in GHz), relaxation time and gain of the Er-doped fiber, and cavity loss. The tuning range is determined by the range of tuning filter within Er-doped fiber gain spectrum. This technique is applicable to any fiber with much higher stimulated Brillouin scattering threshold than that of STRS.
Keywords :
Rayleigh scattering; band-pass filters; fibre lasers; laser modes; laser tuning; ring lasers; stimulated Brillouin scattering; cavity loss; homogenous gain broadening effect; nonuniform optical fiber; single longitudinal mode tunable fiber ring laser; stimulated Brillouin scattering; stimulated Rayleigh scattering; tunable bandpass filter; tunable narrow linewidth fiber laser; Erbium-doped fiber lasers; Optical fiber communication; Optical fiber sensors; Optical fibers; Pump lasers; Fiber ring; optical communications; optical fiber lasers; single longitudinal mode (SLM);
fLanguage :
English
Journal_Title :
Lightwave Technology, Journal of
Publisher :
ieee
ISSN :
0733-8724
Type :
jour
DOI :
10.1109/JLT.2011.2142292
Filename :
5750011
Link To Document :
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