Abstract

Longitudinal strains in optical fibers have been found to produce a large differential phase shift between the first-and second-order spatial modes propagating in a two-mode fiber. This differential phase shift between the modes is both calculated and measured to be dispersive with respect to wavelength. For fibers with highly elliptical core geometries, which propagate only one lobe orientation of the second-order mode, the differential phase shift is also found to be polarization dependent.

© 1987 Optical Society of America

Use of highly elliptical core fibers for two-mode fiber devices

B. Y. Kim, J. N. Blake, S. Y. Huang, and H. J. Shaw
Opt. Lett. 12(9) 729-731 (1987)

Optical Kerr switch using elliptical-core two-mode fiber

H. G. Park, C. C. Pohalski, and B. Y. Kim
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Photoinduced refractive-index changes in two-mode, elliptical-core fibers: sensing applications

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Opt. Lett. 16(19) 1541-1543 (1991)

Dispersion effects in elliptical-core highly birefringent fibers

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Nonlinear strain response of two-mode fiber-optic interferometer

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Opt. Lett. 21(13) 934-936 (1996)