Switch and system for switching integrated optical multichannels

Details Switch and system for switching integrated optical multichannels Switch and system for switching integrated optical multichannels

1991-03-14

1992-01-07

Ullah, Akm

Optical waveguides

With optical coupler

Switch

385 16, G02B 514

Patent

active

050785141

ABSTRACT:
Switch and system for the switching of integrated optical multichannels and switch production method. The switch comprises a substrate (2) supporting a buffer film (12), a recess (24) made in the buffer film and the substrate, one input microguide (18) and two adjacent output microguides (20, 22), the input and output microguides being disposed on both sides of the recess and orientated approximately along a first direction, a flexible girder (26) defined in the buffer film and equipped with a central microguide (32) over its entire length orientated along the first direction, this girder comprising one free extremity able to deform in the recess along a second direction parallel to the surface of the substrate and perpendicular to the first direction, the central microguide being situated in the prolongation of the input microguide, and excitation means (36, 38, 44, 46, 40, 48) to bring the free extremity of the central microguide of the girder into the prolongation of one of the output microguides.

REFERENCES:
patent: 3649837 (1972-03-01), Lehovec
patent: 3665218 (1972-05-01), Andrews
patent: 4456337 (1984-06-01), Nicholson
patent: 4488780 (1984-12-01), Nicholson
Bogert et al., "Low Crosstalk 4.times.4 TiLiNbO.sub.3 Optical Switch with Permanently attached Polarization Maintaining Fiber Array", Journal of Lightwave Technology, vol. LT-4, No. 10, Oct. 1986, pp. 1542-1545.
"Strictly Nonblocking 8.times.8 Integrated Optical Switch Matrix", Electronic Letters, 17th Jul. 1986, vol. 22, No. 15, pp. 816-818.

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