Optical mems switch with imaging system

Details Optical mems switch with imaging system Optical mems switch with imaging system

G - Physics

02

B

G02B 26/08 (2006.01) B81B 7/02 (2006.01) G02B 6/35 (2006.01) G02B 6/43 (2006.01)

Patent

CA 2384071

In an all optical switch an imaging system is interposed between the micro lens array and the moveable micro mirrors of a MEMS device to which, or from which, the light beams are directed. This causes an image of the micro lens array to be formed at the MEMS device, or vice-versa, thus effectively eliminating the distance between the micro lens array and the MEMS device. The imaging system may be a telecentric system. The size of the arrangement may be reduced by compacting the optical path, e.g., using appropriate conventional mirrors, and/or employing folded arrangements, i.e., arrangements in which there is only one MEMS device stage that does double duty for both input and output through the use of at least one conventional mirror. The overall system is arranged to account for any inversions introduced.

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