Single-Mode Fiber Pseudo-Depolarizer

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Abstract
A technique for the pseudo-depolarization of a long-coherence length source is described, which is based on a simple polarization modulation scheme. Using a length of high birefringence fiber wound on a piezoelectric transducer, a simple all-fiber polarization scrambler can be constructed. Details of an electro-optic scrambler are also reported. The depolarization technique is shown to eliminate the effects of input-lead-birefringence induced polarization fading in interferometric sensors.

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