Passive optical channel crossover, switch and bend structure

Details Passive optical channel crossover, switch and bend structure Passive optical channel crossover, switch and bend structure

1977-05-31

1978-12-19

Corbin, John K.

350 9613, 350355, G02B 514

Patent

active

041303423

ABSTRACT:
An optical structure comprising a multiplicity of optical channels crossing in a plane, constructed to provide high interchannel isolation with low optical signal attenuation. Each channel possesses a refractive index that is greater than the refractive index of the encompassing planar material and is separated from the optical channel interaction region by an optical propagating material, having a refractive index that is less than the refractive index of the optical channels, which is inserted along each border between the optical channels and the channel interaction region formed by the crossover. Other embodiments of the invention provide low loss optical channel bends and a high isolation, low loss, double pole, double throw optical channel switch.

REFERENCES:
patent: 3558213 (1971-01-01), Marcatili
patent: 3622911 (1971-11-01), Marcatili
patent: 4008947 (1977-02-01), Baues et al.
White "Integrated Optics Thin-Film Mirror", IBM Tech. Discl. Bull., vol. 18, No. 9, Feb. 1976, pp. 3134-3135.

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