Patent ID: 9537577
Date: 2017-01-03
CPC Classifications: H04B,H04J

Claim:
1. An optical transmitter, comprising: a controller configured to: determine one or more operating parameters associated with a quantity of data channels and/or subcarriers being transmitted by a transmitter, the one or more operating parameters identifying one or more target wavelength ranges for the quantity of data channels and/or subcarriers; cause the transmitter to insert one or more tones into an optical signal based on the one or more operating parameters, the optical signal having a particular wavelength based on a target wavelength associated with the one or more target wavelength ranges, the optical signal being output by the transmitter, the one or more tones being caused to be inserted at a frequency offset from the one or more target wavelength ranges; determine one or more signal responses based on causing the transmitter to insert the one or more tones into the optical signal; compare the one or more signal responses to a pre-determined response; and selectively control the particular wavelength of the optical signal to match the target wavelength based on comparing the one or more signal responses to the pre-determined response, to make the one or more signal responses match the pre-determined response.