CIRCUIT CHANGER OF OPTICAL SIGNALS Russian patent published in 2009 - IPC G02B6/35 

FIELD: physics; communication.

SUBSTANCE: invention concerns to devices for coding, decoding and data transmission, presented by optical signals, in particular, to the circuit changers of optical signals applied in computer networks. The circuit changer contains 2N+1 logic blocks, N=1, 2, 3, .... The logic block contains first, second and third inlets-exits, the first inlet-exit of the logic block with number J=1, 2, ..., 2N+1 is inlet-exit J th of the channel of the circuit changer. The second inlet-exit of the logic block with odd number J=1, 3, 5, ..., 2N-1 is joined to the second inlet-exit of the logic block with the nearest major even number J=2, 4, 6, ..., 2N. The second inlet-exit of the logic block with number J=2N+1 is joined to the third inlet-exit of the logic block with number J=1. The third inlet-exit of the logic block with odd number J=3, 5, ..., 2N+1 is joined to the third inlet-exit of the logic block with the nearest smaller even number J=2, 4, 6,..., 2N.

EFFECT: simplification of the circuit changer of optical signals and expansion of its functionality.

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