Polarization control optical space switch

Details Polarization control optical space switch Polarization control optical space switch

1994-02-23

2000-10-17

Shafer, Ricky D.

Optical: systems and elements

Holographic system or element

Using a hologram as an optical element

359117, 359122, 359250, 359253, 359254, 359256, 359259, 359301, 359316, 359320, 349194, 349196, 349197, G02B 532, G02B 2728, G02F 101, H04J 1406

Patent

active

061340316

ABSTRACT:
The present invention is directed to an optical space switch accommodating a plurality of input light paths and output light paths. The optical space switch comprises a plurality of polarization control optical switches, each consisting essentially of: polarization control means having elements, one for each input light path, for rotating through 90.degree. the polarizing direction of light information incident from each input light path or otherwise retaining the polarizing direction thereof for output; and a light path routing element for routing the light path for the light information output from the polarization control means in accordance with the polarizing direction of the light information. These polarization control optical switches are arranged in a matrix pattern or coupled in cascade to implement a polarization control optical space switch.

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