Optical switch of switched directional coupler type

Details Optical switch of switched directional coupler type Optical switch of switched directional coupler type

1983-06-09

1986-10-21

Sikes, William L.

350 9613, G02B 610

Patent

active

046182101

ABSTRACT:
An optical switch with switched optical directional couplers, switched by the application of either 0 volt or a voltage V.sub.1, different from 0 volt. Coupling of almost 100% is achieved when the V.sub.1 voltage is applied to a selected directional coupler, while coupling of 0% to 20% occurs when 0 volt is applied to the selected directional coupler. The optical directional coupler is formed by locating adjacent optical waveguides in close proximity and applying electric field producing electrodes to the waveguides where they are in close proximity such that the substrate below opposing waveguide sections receive electric fields of opposite directions.

REFERENCES:
patent: 4013000 (1977-03-01), Kogelink
"GHz Bandwidth Optical Channel Waveguide TIR Switches and 4.times.4 Switching Networks" Chang et al., Conference: Topical Meeting on Integrated and Guided-Wave Optics Pacific Grove, Calif., U.S.A., Jan. 1982.
"VLS1 Systems" by Carver Mead, Oct. 1980.

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