An optical crossbar switch

Details An optical crossbar switch An optical crossbar switch

G - Physics

02

F

G02F 1/01 (2006.01) H04L 12/00 (2006.01) H04Q 3/52 (2006.01) H04Q 11/00 (2006.01)

Patent

CA 2327401

ABSTRACT An optical crossbar switch comprises an array of modified liquid crystal pixels (LCPs) (herein referred to as, simply, LCPs). Each LCP is constructed by adding a dichroic dye to the liquid crystal, where the liquid crystal has no polarizers. The array comprises N x M LCPs, where N > 0, M > 0, and M may equal N. The array is coupled to (a) N optical fibers (or input optical channels) for receiving N input optical signals, and (b) M optical fibers (or output optical channels) that provide M output optical signal paths, and (c) a control element. The latter turns on and off individual cells (i.e., LCPs) of the array for switching at least one of the N input optical signals to at least one of the M output optical signal paths.

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