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Proceedings Paper

Low noise semiconductor laser for optical fiber sensing
Author(s): M. Poulin; S. Ayotte; A. Babin; M. Aubé; C. Latrasse; J.-F. Cliche
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Paper Abstract

Semiconductor lasers are of great interest in high performance optical fiber sensing systems because of their high reliability, lifetime, low cost and size. However, their linewidth and phase noise are often a limitation. Using frequency discrimination based on a specially designed fiber Bragg grating, we decrease the linewidth of a semiconductor laser to the kHz level, with phase noise reduction up to 1 MHz. Using a phase modulator in a second feedback loop to correct fast phase fluctuations, we demonstrate that the bandwidth can be pushed above 10 MHz.

Paper Details

Date Published: 5 October 2009
PDF: 5 pages
Proc. SPIE 7503, 20th International Conference on Optical Fibre Sensors, 75037M (5 October 2009); doi: 10.1117/12.835426
Show Author Affiliations
M. Poulin, TeraXion Inc. (Canada)
S. Ayotte, TeraXion Inc. (Canada)
A. Babin, TeraXion Inc. (Canada)
M. Aubé, TeraXion Inc. (Canada)
C. Latrasse, TeraXion Inc. (Canada)
J.-F. Cliche, TeraXion Inc. (Canada)

Published in SPIE Proceedings Vol. 7503:
20th International Conference on Optical Fibre Sensors
Julian D. C. Jones, Editor(s)

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