Electro optical switch architectures

Details Electro optical switch architectures Electro optical switch architectures

1987-03-13

1988-11-29

Sikes, William L.

350 9613, 350 9614, G02B 628

Patent

active

047876921

ABSTRACT:
Optical switch networks and the design rules for creating them are disclosed. The networks comprise a plurality of input and output stages of optical switch elements. Each input optical switch stage is comprised of a plurality of 1 by 2 optical switch elements and each output stage is comprised of a plurality of 2 by 1 optical switch elements. Using these stages, optical switch networks are constructed where switch elements are interconnected by optical waveguides diffused in a substrate. Further, the connections between adjacent stages include optical waveguide crossovers (crossthroughs).

REFERENCES:
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Ogiwara et al., Applied Optics, vol. 17, No. 8, Apr. 15, 1978, "Optical Waveguide Switch (3.times.3) for an Optical Switching System," pp. 1182-1186.
H. Kogelnik, "Switched Directional Couplers with Alternating .DELTA..beta.", IEEE Journal of Quantum Electronics, vol. QE-12, No. 7, Jul. 1976.
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