Abstract

A simple, accurate, and nondestructive method based on acousto-optical modulation of the polarization and the optical frequency in a linearly birefringent fiber is proposed for measuring the beat length of the fiber. Short beat lengths can be measured by this method with an accuracy of the order of 1%. This method can also be used to identify the local polarization axes of the fiber.

© 1989 Optical Society of America

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Beat-length measurement of birefringent optical fibers

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Opt. Lett. 12(11) 935-937 (1987)

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