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Linear readout of dynamic phase change in a fiber-optic homodyne interferometer

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Abstract

A new technique that provides linear measurement of dynamic phase change in a no-feedback, no-phase-bias fiberoptic interferometer is described. The phase measurement is unaffected by random changes in phase, source intensity, and fringe visibility. A minimum detectable phase shift of 0.1 rad has been measured for the configuration reported.

© 1989 Optical Society of America

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