Abstract

We report the operation of an active, single-frequency, polarimetric, Bragg-grating fiber-laser strain sensor. The short Bragg-grating fiber-laser design limited lasing to two orthogonal polarization modes that, when optically mixed, yielded a single beat frequency that varied at a rate of −4.1 MHz/mstrain for linear strain and −0.37 MHz/(deg/cm) for torsional strain.

© 1993 Optical Society of America

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