Patent ID: 9225432
Filing Date: 2015-12-29
Classification: H04B

Abstract:
1. A method by an optical receiver for multiple wavelength coherent reception, the method comprising: receiving an optical signal including multiple wavelength division multiplexed (WDM) channels at multiple wavelengths; selecting the WDM channels in accordance with input wavelengths from a multiple wavelength local oscillator (MWLO), wherein a frequency of each of the input wavelengths of the MWLO is offset from a center frequency of a corresponding one of the WDM channels, and wherein the input wavelengths from the MWLO lock the signal to the multiple wavelengths of the WDM channels simultaneously; splitting the signal into multiple polarization components; separating the WDM channels in the polarization components using digital signal processing (DSP); performing chromatic dispersion compensation (CDC) on the WDM channels; and performing time domain equalization on each of the WDM channels.