Optical control device and method for making the same

Details Optical control device and method for making the same Optical control device and method for making the same

1995-09-27

1997-11-11

Bovernick, Rodney B.

Optical waveguides

With optical coupler

Particular coupling structure

385 2, 385 8, 385 9, G02B 626, G02B 642

Patent

active

056872658

ABSTRACT:
Disclosed is an optical control device which has a LiNbO3 or LiTaO3 crystalline substrate having electrooptic effect; a channel-type optical waveguide which is formed in the crystalline substrate by doping metal; an optically transparent film layer formed on the crystalline substrate; and electrodes formed on the optically transparent film layer; wherein the crystalline substrate has a surface except a region which waveguided-light through the channel-type optical waveguide propagates or an entire surface under which a layer doped by metal is formed.

REFERENCES:
patent: 4561718 (1985-12-01), Nelson
patent: 5042895 (1991-08-01), Chouinard et al.
patent: 5390157 (1995-02-01), Revelli
patent: 5404412 (1995-04-01), Seino et al.
N. Nishimoto et al., "Polarization Independent 8X8 LiNbO.sub.3 Optical Matrix Switch", Electronic Information Communication Society, OQE88-147, pp. 67-74, in Japanese.

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