M x n optical matrix switch

Details M x n optical matrix switch M x n optical matrix switch

H - Electricity

04

Q

H04Q 3/52 (2006.01) G02B 6/35 (2006.01) H04B 10/12 (2006.01) G02B 6/32 (2006.01)

Patent

CA 2355918

An M x N optical switch in which the focal lengths of the collimating lenses are adjusted so that the waists of the Gaussian beams exiting the collimating lenses are focused on reflecting elements, which are positioned along a diagonal of the array of reflecting elements. This arrangement increases the number of beams that are symmetrical about the waist position, which increases the coupling efficiency. The best possible arrangement occurs when all of the waists are equal in diameter, thereby ensuring that for every output port the distances from the waists to the focusing lens are identical.

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