Optical waveguide device

Details Optical waveguide device Optical waveguide device

1988-09-14

1990-02-06

Lee, John D.

350 9612, 350 9614, 350377, 350355, G02F 109

Patent

active

048984400

ABSTRACT:
An optical waveguide device is disclosed which utilizes an interaction between a guided optical wave and a magnetostatic wave. The optical waveguide device comprises a layer of bismuth substituted magnetic garnet which guides an optical wave. A pair of electrodes coupled to the layer of the magnetic garnet generates a magnetostatic backward volume wave in the layer of the magnetic garnet under an application of a certain bias magnetic field. The guided optical wave and the magnetostatic wave interact with each other wherein adverse effect caused by a spin effect is avoided to realize high efficiency at high frequency.

REFERENCES:
patent: 4152676 (1979-05-01), Morgenthaler et al.
patent: 4291283 (1981-09-01), Castera
patent: 4318061 (1982-03-01), Castera et al.
patent: 4575179 (1986-03-01), Lee et al.
patent: 4796983 (1989-01-01), Stancil
Journal of Applied Physics, 50(3), Mar. 1979 "Magnetostatic wave to exchange resonance coupling.sup.a) ", pp. 2246-2248.
Applied Physics Lett. 41(9), Nov. 1, 1982, "Optical guided-wave interactions with magnetostatic waves at microwave frequencies", pp. 779-781.

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