An apparatus and method for routing {TAIL ~ optical signals} in which at least one demultiplexer receives and demultiplexes an incoming wavelength division multiplexed optical signal into {HEAD ~ n individual channels} 
An apparatus and method for routing { TAIL ~ optical signals } in which at least one demultiplexer receives and demultiplexes an incoming wavelength division multiplexed optical signal into { HEAD ~ n individual channels }
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