Paper
25 February 2010 Tunable birefringent phase shift induced in fiber Bragg gratings by a shape memory alloy phase modulator
A. Fraser, M. Bernier, E. Weynant, R. Vallée
Author Affiliations +
Proceedings Volume 7598, Optical Components and Materials VII; 75980J (2010) https://doi.org/10.1117/12.842098
Event: SPIE OPTO, 2010, San Francisco, California, United States
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.
© (2010) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
A. Fraser, M. Bernier, E. Weynant, and R. Vallée "Tunable birefringent phase shift induced in fiber Bragg gratings by a shape memory alloy phase modulator", Proc. SPIE 7598, Optical Components and Materials VII, 75980J (25 February 2010); https://doi.org/10.1117/12.842098
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KEYWORDS
Phase shifts

Fiber Bragg gratings

Polarization

Fiber lasers

Modulators

Shape memory alloys

Actuators

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