Abstract

An all-fiber gyroscope that uses a 1.06-μm multicore Nd-doped fiber source pumped by a laser-diode array is demonstrated. Intensity noise subtraction is used to reduce the excess noise that arises from a source bandwidth limitation. The random walk coefficient is improved by a factor of 3, to $2.5\times {10}^{-4}\text{deg}\sqrt{\text{h}}$ (1-km fiber, 16-cm radius).

© 1991 Optical Society of America

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