Nonreciprocal Effects Due To The Acousto-Optic Modulator Used In Fiber-Optic Sensors

R. J. Michal; E. Udd; J. P. Theriault

doi:10.1117/12.942500

23 March 1988 Nonreciprocal Effects Due To The Acousto-Optic Modulator Used In Fiber-Optic Sensors

R. J. Michal, E. Udd, J. P. Theriault

Proceedings Volume 0838, Fiber Optic and Laser Sensors V; (1988) https://doi.org/10.1117/12.942500
Event: Cambridge Symposium on Fiber Optics and Integrated Optoelectronics, 1987, Cambridge, MA, United States

Abstract

Nonreciprocal phase errors have been identified in Sagnac fiber-optic sensors which use acousto-optic modulators for frequency shifting. These errors have been observed in a system which uses the acousto-optic modulator as both a frequency shifter and the central beamsplitter which generates the counterpropagating light beams in the Sagnac interferometer. The amount of phase error generated is dependent on the acousto-optic modulator drive power as well as other acousto-optic parameters. Data is presented from an inter-ferometer which uses the acousto-optic modulator as a beamsplitter. The data shows good correlation with the predicted phase errors.

Citation Download Citation

R. J. Michal, E. Udd, and J. P. Theriault "Nonreciprocal Effects Due To The Acousto-Optic Modulator Used In Fiber-Optic Sensors", Proc. SPIE 0838, Fiber Optic and Laser Sensors V, (23 March 1988); https://doi.org/10.1117/12.942500

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