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Compact interconnection networks for photonics

: Giglmayr, J.

Applied optics 32 (1993), Nr.26, S.5002-9
ISSN: 0003-6935
ISSN: 1539-4522
ISSN: 1559-128X
Fraunhofer HHI ()
hypercube networks; multiplexing; optical information processing; optical interconnections; optical switches; compact interconnection networks; photonics; multistage interconnection networks; design parameters; compact architecture; optical switch interconnects; light backreflection; switching arrays; interconnect organization schemes; optical computing

The length of multistage interconnection networks is a crucial design parameter. The presented compact architecture overcomes this problem but raises several others, which are the additional interconnects between the separated inputs and outputs of a switch and the backreflection of light inside the architecture. Additional interconnects can be avoided by the interleaved organization of the switching arrays, or a mix of inputs and outputs. Different interconnect organization schemes are analyzed and evaluated. The avoidance of backreflection of light is discussed.