Segmented optical switch

Details Segmented optical switch Segmented optical switch

H - Electricity

04

Q

H04Q 3/52 (2006.01) G02B 6/35 (2006.01) H04B 10/00 (2006.01)

Patent

CA 2367166

In an effort to greatly decrease the insertion losses inherent in larger sized M × N optical switches, the present invention deals with minimizing the variation in the optical path lengths of optical beams passing through the switch. To accomplish this goal, the present invention relates to a segmented optical switch comprising four segments, two segments having input ports and two segments having output ports. The segments having output ports are separated from each other, and positioned on adjacent sides of the segments with input ports. Accordingly, the very short optical paths as well as the very long optical paths in the switch are eliminated, thereby minimizing the variation in the optical path lengths. Preferably, the switch is comprised of four identical segments, making manufacturing and supply costs less.

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