Multi-position opto-electronic switch

Details Multi-position opto-electronic switch Multi-position opto-electronic switch

1988-08-05

1991-02-26

Sikes, William L.

350 9613, G02B 632

Patent

active

049956930

ABSTRACT:
An optical switch for coupling one of a plurality of input light sources to one of a plurality of output terminals is comprised of a Bragg cell array acoustically excited in accordance with one or more preselected control frequencies from a selectable source of such frequencies. The beam deflection is proportional to the applied radio frequency. A scan lens is positioned to intercept the deflected beams and to focus the beams into a plane for imaging upon a linear array of optical output fibers. By choice of the control frequency any combination of input and output fiber optic lines may be optically coupled without requiring active sensors. Sufficient diffraction is provided by the Bragg cell in combination with the scan lens to minimize cross-talk and insertion loss.

REFERENCES:
patent: 4530573 (1985-07-01), Wolkstein
patent: 4693548 (1987-09-01), Tsunoi

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