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Proceedings Paper

Nonreciprocal Effects Due To The Acousto-Optic Modulator Used In Fiber-Optic Sensors
Author(s): R. J. Michal; E. Udd; J. P. Theriault
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Paper 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.

Paper Details

Date Published: 23 March 1988
PDF: 7 pages
Proc. SPIE 0838, Fiber Optic and Laser Sensors V, (23 March 1988); doi: 10.1117/12.942500
Show Author Affiliations
R. J. Michal, McDonnell Douglas Astronautics Company (United States)
E. Udd, McDonnell Douglas Astronautics Company (United States)
J. P. Theriault, McDonnell Douglas Astronautics Company (United States)


Published in SPIE Proceedings Vol. 0838:
Fiber Optic and Laser Sensors V
Ramon P. DePaula; Eric Udd, Editor(s)

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