DocumentCode :
1524201
Title :
Author :
Fraser, Alex ; Vallée, Réal ; Deschênes, Jean-Daniel ; Bernier, Martin ; Genest, Jérôme ; Weynant, Éric
Author_Institution :
Phasoptx Inc., Montréal, QC, Canada
Volume :
29
Issue :
14
fYear :
2011
fDate :
7/15/2011 12:00:00 AM
Firstpage :
2156
Lastpage :
2165
Abstract :
A detailed analysis of the behavior of a DFB fiber laser based on a high-speed tunable intra-cavity phase-shifter is presented. The phase-shifter made of a specially designed shape memory alloy is inducing a birefringence, thus allowing the laser to operate on either x or y polarization mode in the CW regime or in the Q -switched regime. The spectral characteristics of the laser are analyzed in detail for both regimes and the cavity properties are derived from the relaxation oscillation frequency.
Keywords :
Q-switching; alloys; birefringence; distributed feedback lasers; fibre lasers; high-speed optical techniques; laser cavity resonators; laser modes; optical fibre polarisation; optical materials; optical modulation; phase modulation; shape memory effects; Q -switched DFB fiber laser; Q -switched regime; birefringence; continuous wave regime; high speed tunable intracavity phase shifter; polarization mode; shape memory alloy optical fiber phase modulator; Fiber lasers; Frequency modulation; Laser modes; Optical fibers; Phase modulation; Pump lasers; $Q$ -switched DFB fiber laser; phase modulator; polarization;
fLanguage :
English
Journal_Title :
Lightwave Technology, Journal of
Publisher :
ieee
ISSN :
0733-8724
Type :
jour
DOI :
10.1109/JLT.2011.2157459
Filename :
5772893
Link To Document :
