Optical device with spatial light modulators for switching arbit

Details Optical device with spatial light modulators for switching arbit Optical device with spatial light modulators for switching arbit

1993-03-05

1994-11-08

LaRoche, Eugene R.

Optical: systems and elements

Deflection using a moving element

Using a periodically moving element

359128, 359245, 359251, G02B 628, G02F 129

Patent

active

053632281

ABSTRACT:
An optical switching device for switching arbitrarily polarized optical signal beams includes a plurality of polarization-independent switching cells arranged in matrix form. Each polarization-independent switching cell is independently controllable to selectively direct received optical beams along at least a selected one of two axes. The device can be three-dimensionally expanded to increase the number of output ports to which the optical beams can be selectively switched, in which case the matrices can share integrally constructed polarization-independent switching cells.

REFERENCES:
patent: 4410238 (1983-10-01), Hanson
patent: 4461543 (1984-07-01), McMahon
patent: 5013140 (1991-05-01), Healey et al.
patent: 5175777 (1992-12-01), Bottle
"Switched Holograms for Reconfigurable Optical Interconnection: Demonstration of a Prototype Device", J. Barry McManus, Roger S. Putnam and H. John Caulfield. Applied Optics, vol. 27, No. 20, Oct. 15, 1988, pp. 4244-4250.
"Two-Dimensional Optical Architecture for Time-Delay Beam Forming in a Phased-Array Antenna", D. Dolfi, F. Michel-Gabriel, S. Bann, and J. P. Huignard. Optics Letters, vol. 16, No. 4, Feb. 15, 1991, pp. 255-257.
"Electrically Controlled Optical Switch For Multimode Fiber Applications", R. E. Wagner and J. Cheng, Applied Optics, vol. 19, No. 17, Sep. 1, 1980, pp. 2921-2925.

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