AWGRarrayed waveguide grating router
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Through the migration of successful WDM networking practices to the mid-plane computercom level, STREAMS will develop a distributed routing system based on a passive Si-Pho AWGR routing element to provide simultaneous any-to-any communication between 16 end-points, such as high-end processor sockets.
In [7], a three-stage Clos-based architecture was proposed by employing multiple AWGRs at each stage and an array of TWCs between each pair of adjacent stages, in order to improve scalability against using a single AWGR as in [6].