Patent ID: 9195079
Filing Date: 2015-11-24
Classification: G02B,G02F,H04B

Abstract:
1. An optical coherent transceiver comprising a monolithically integrated electrical and optical circuit having a substrate with a planar surface onto which is formed a polarization and phase-diversity coherent receiver and a polarization and phase-diversity modulator, and said optical coherent transceiver including only three optical Input/Output ports employing only three grating couplers, the first grating coupler optically connected to the polarization-diversity receiver, the second grating coupler optically connected to the receiver and the input of the polarization-diversity modulator, and the third grating coupler optically connected to the output of said modulator; wherein one of the grating couplers couples in to the transceiver a modulated signal, a second one of the grating couplers couples in to the transceiver a continuous-wave signal, and a third one of the grating couplers couples out a modulated signal.