AWGRarrayed waveguide grating router
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In [6], a new datacenter optical switch (DOS) architecture was proposed and featured by a single arrayed-waveguide grating router (AWGR), an array of tunable wavelength convertors (TWCs), an array of label extractors (LEs), and a loopback shared electronic buffer with additional O/E and E/O conversion circuits, jointly coordinated under a centralized controller.