Acousto-optic polarization modulation in polarization-preserving fibers with bulk shear acoustic waves

David B. Patterson

doi:10.1117/12.140946

2 September 1992 Acousto-optic polarization modulation in polarization-preserving fibers with bulk shear acoustic waves

David B. Patterson

Proceedings Volume 1779, Optical Design and Processing Technologies and Applications; (1992) https://doi.org/10.1117/12.140946
Event: Optical Engineering Midwest 1992, 1992, Chicago, IL, United States

Abstract

The state of polarization of light propagating in a polarization-preserving fiber may be varied via the acousto-optic effect by introducing high-frequency acoustic waves into the core region of the fiber. This effect may provide active polarization control for applications in interferometry, switching, and amplitude modulation. This paper describes a method for inducing polarization coupling within an optical fiber by coupling bulk shear acoustic waves through the flat surface of an elliptical-core D-fiber. The theory of device operation is developed, and a device model is characterized. The effect is experimentally verified with a first-generation device achieving approximately 7% amplitude coupling efficiency at 2 W input electrical power at a frequency of 22.7 MHz.

Citation Download Citation

David B. Patterson "Acousto-optic polarization modulation in polarization-preserving fibers with bulk shear acoustic waves", Proc. SPIE 1779, Optical Design and Processing Technologies and Applications, (2 September 1992); https://doi.org/10.1117/12.140946

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