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OPTICAL SIGNAL PROCESSING DEVICE

Abstract(summary):

The present invention provides an optical signal processing device having a transponder aggregator function that does not increase fundamental loss regardless of the increase of the number of necessary transponders. Optical signals inputted from input ports (a, b, c) are inputted to a PLC (10). In the PLC (10), SBTs (11_0 to 11_4) are installed, the input ports (a, b, c) are connected to the input-side SBT (11_0), and planar waves are outputted at different angles for each of the input ports from an output end of the PLC (10) to the space side. The optical paths of the optical signals outputted from the PLC (10) are converted within an x-z plane by a cylindrical lens (Lsp) having a refraction action in an x-axis direction, and the optical signals are reflected in different regions that are regions (A, B, C) on an LCOS according to the positions of the input ports (a, b, c). The reflected optical signals are incident on the SBTs (11_1 to 11_4) on the output side of the PLC (10), and outputted to output ports (1-4) via merging parts (13_1 to 13_4).


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