Utilization Of Acousto-Optic Frequency Shifters In Fiber-Optic Sagnac Sensors

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

doi:10.1117/12.939950

10 June 1987 Utilization Of Acousto-Optic Frequency Shifters In Fiber-Optic Sagnac Sensors

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

Proceedings Volume 0753, Acousto-Optic, Electro-Optic, & Magneto-Optic Devices & Applications; (1987) https://doi.org/10.1117/12.939950
Event: OE LASE'87 and EO Imaging Symposium, 1987, Los Angeles, CA, United States

Abstract

Traditionally the Sagnac fiber-optic sensor has been used to make measurements of rotation. By utilizing acousto-optic modulators to provide a frequency difference between the counterpropagating light beams in the sensing coil other environmental disturbances can be measured with high accuracy. A discussion of the various configurations used to cause a frequency difference between the counterpropagating light beams is given. A description of a laboratory model using one of these configurations is discussed and data demonstrating the ability to measure environmental disturbances accurately is presented.

Citation Download Citation

R. J. Michal, E. Udd, and J. P. Theriault "Utilization Of Acousto-Optic Frequency Shifters In Fiber-Optic Sagnac Sensors", Proc. SPIE 0753, Acousto-Optic, Electro-Optic, & Magneto-Optic Devices & Applications, (10 June 1987); https://doi.org/10.1117/12.939950

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