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Self-beating Resonant Optical Gyroscope With a "Reflector": The Possibility of High Sensitivities at Reduced Costs

Self-beating Resonant Optical Gyroscope With a "Reflector": The Possibility of High Sensitivities at Reduced Costs

Sumukh Nandan R, Saroj Poudyal, Shailesh Srivastava, R Gowrishankar

Appl Opt. 2019 Mar 1;58(7):1699-1706.

PMID: 30874211

Abstract:

Using simulations and theoretical analysis, we present an innovative readout technique that uses the change in a beat frequency signal for sensing rotation in the resonant fiber gyroscope with a "reflector." Unlike traditional fiber optic gyros, this gyroscope uses an embedded reflecting element that deliberately couples the clockwise and counter-clockwise propagating waves for sensing rotation. Our analytical results predict increased immunity to the degrading effects of backscattering, Kerr nonlinearities, and ambient variations at an optimum nonreciprocal bias. Using just a few meters of fiber and without requiring a very narrow-linewidth source, sensitivities below 1 deg/h along with a dynamic range greater than 106 deg/h are predicted. The technique has the potential to provide a cost-effective solution in the tactical grade.

Chemicals Related in the Paper:

Catalog Number	Product Name	Structure	CAS Number	Price
AP1020719703	(R,S)-Norcotinine-13C3 solution		1020719-70-3	Price

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