Optical switch

Details Optical switch Optical switch

1996-09-13

1998-01-27

Ngo, John

Optical waveguides

With optical coupler

Switch

385 8, 385 9, 385 40, 385 41, G02B 626

Patent

active

057129355

ABSTRACT:
An optical switch includes a substrate, an optical waveguide, arm waveguides, S-shaped curved waveguides, and two pairs of control electrodes. The substrate has an electro-optic effect. The optical waveguide is formed on the substrate and on which light is incident. The arm waveguides are formed on the substrate and branched from the light-incident optical waveguide into a Y shape. The S-shaped curved waveguides are formed on the substrate and continuous to the arm waveguides to form S-shaped curves. The first pair of control electrodes are formed on the arm waveguides and S-shaped curved waveguides. The second pair of control electrodes are formed on the substrate to be close to the first pair of control electrodes at predetermined gaps thereto.

REFERENCES:
patent: 4607909 (1986-08-01), Sanford
patent: 5148505 (1992-09-01), Yanagawa et al.
patent: 5481636 (1996-01-01), Fukuda et al.
"Integrated Optics 4.times.4 Switch Matrix With Digital Optical Switches", Electronics Letters, Jan. 4, 1990, vol. 26, No. 1, pp. 4-5.
"Low Drive Voltage Y-Branch Digital Optical Switch", Electronics Letters, Jan. 3, 1991, vol. 27, No. 1, pp. 24-26.

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