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A polyvinylidene fluoride (PVF2) phase shifter is characterized in terms of amplitude response linearity, frequency response uniformity, and ultimate sensitivity to electric field. Phase-drift compensation with this PVF2device is demonstrated in a Mach-Zehnder fiber interferometer. The compensator can be operated at theπ/2-phase mode for maximum sensitivity in detection applications, or the π-phase mode for maximum frequency mixing efficiency.
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Koo et al. (1982) studied this question.
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