Patent ID: 8630547

Claim:
A computing device-implemented method, comprising: receiving, from an optical receiver, performance information associated with an optical channel generated by an optical transmitter, where the performance information is associated with operating the optical channel, during a first time period, at a first wavelength, and where the performance information includes a received differential group delay (DGD REC ) associated with the optical channel at the first wavelength during the first time period; determining, based on the received performance information and the first wavelength, a second wavelength, where determining the second wavelength includes: identifying an optimal differential group delay (DGD OPT ) associated with the optical channel, where the DGD OPT is a smallest differential group delay value observed on the optical channel prior to the first time period, and where the DGD OPT is associated with a particular wavelength, comparing the DGD REC to the DGD OPT , determining, when the DGD REC is less than the DGD OPT , the second wavelength based on the first wavelength, and determining, when the DGD REC is not less than the DGD OPT , the second wavelength based on the particular wavelength; and providing, to the optical transmitter, a request to adjust an optical channel wavelength to the determined second wavelength, where the optical transmitter adjusts the optical channel wavelength, during a second time period that is after the first time period, to the determined second wavelength based on the request.