Optical modulator depressing optical feedback and optical modula

Details Optical modulator depressing optical feedback and optical modula Optical modulator depressing optical feedback and optical modula

1993-06-24

1994-09-27

Ullah, Akm E.

Optical waveguides

Directional optical modulation within an optical waveguide

Electro-optic

257 13, 257 97, 385130, G02B 610

Patent

active

053513207

ABSTRACT:
An optical modulating element has a core layer and first and second cladding layers sandwiching the core layer. The core layer is made of one or semiconductors belonging to a point group 43m or 42m, and has TM.sub.00 and TE.sub.00 propagation modes. The direction of light of said TM.sub.00 and TE.sub.00 propagation modes is parallel to the [110] or [-110] direction of crystal orientation. The change amount of an index of refraction of the core layer caused by the application of an electric field to the core layer in the direction parallel to the [001] direction is different for the two propagation modes.

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patent: 5090790 (1992-02-01), Zucker
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"High-Speed III-V Semiconductor Intensity Modulators", IEEE J. of Quantum Electronics, vol. 27, No. 3, Mar. 1991, pp. 654-667.

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