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Proceedings Paper

Tunable birefringent phase shift induced in fiber Bragg gratings by a shape memory alloy phase modulator
Author(s): A. Fraser; M. Bernier; E. Weynant; R. Vallée
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Paper Abstract

We propose a new method to induce low loss tunable birefringent phase shifts in fiber Bragg gratings (FBG) by applying mechanical stresses at precise locations along the FBG. A specially designed shape memory alloy (SMA) ferrule is used to transfer mechanical stress to the optical fiber. A piezoelectric actuator control the amount of stress delivered to the fiber by the SMA ferrule, thus allowing a precise and dynamic tuning of the amplitude of the phase shift induced in the FBG. A distributed feedback (DFB) fiber laser based on this phase modulator is also introduced.

Paper Details

Date Published: 25 February 2010
PDF: 9 pages
Proc. SPIE 7598, Optical Components and Materials VII, 75980J (25 February 2010); doi: 10.1117/12.842098
Show Author Affiliations
A. Fraser, PhasOptx (Canada)
Univ. Laval (Canada)
M. Bernier, Univ. Laval (Canada)
E. Weynant, PhasOptx Inc. (Canada)
R. Vallée, Univ. Laval (Canada)

Published in SPIE Proceedings Vol. 7598:
Optical Components and Materials VII
Shibin Jiang; Michel J. F. Digonnet; John W. Glesener; J. Christopher Dries, Editor(s)

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