Patent ID: 9479247
Filing Date: 2016-10-25
CPC Classification: H04B

Claim Text:
1. A method for optical communication, comprising: generating a test signal by passing a signal having a baud rate through a first wavelength selective switch (WSS) having a first bandwidth; transmitting the test signal over an optical communication medium using a first optical modulation format; receiving a reception report, including an estimated transfer function of the optical communications medium, for the test signal; determining, based on the estimated transfer function of the optical communications medium, a pre-equalization scheme; applying the pre-equalization scheme to data to be transmitted at a transmitter side to generate pre-equalized data having the baud rate; processing the pre-equalized data using a second WSS, wherein the second WSS has a second bandwidth greater than the first bandwidth to balance pre-equalization effect and crosstalk from neighboring channels; and transmitting the processed pre-equalized data over the optical communication medium using a second optical modulation format based on the reception report.