Patent ID: 8983292
Filing Date: 2015-03-17
Classification: H04Q

Abstract:
1. A packet switch comprising: a plurality of wavelength tunable optical transmitters each arranged to receive at least one electrical signal packet to be switched, each said optical transmitter being arranged to convert said at least one received electrical signal packet into a corresponding optical signal packet at one of a plurality of input wavelengths; an optical switch fabric arranged to receive said at least one optical signal packet and comprising: a plurality of optical detectors each arranged to receive an optical signal packet from said egress stage and to convert said optical signal packet into an output electrical signal packet; a controller arranged to configure a path across said optical switch fabric connecting a said optical transmitter to a respective said optical detector, said controller being arranged to set said input wavelength for said optical transmitter and to set said output wavelength for a respective said wavelength converter in said path; and wherein the packet switch is operable to: