Patent ID: 11876556
Assignee: CABLE TELEVISION LABORATORIES, INC.
Field: Telecommunications (Electrical engineering)
Classification: CPC H | IPC H

Claim 0:
1. A method for implementing an out-of-band communication channel in a coherent optical network, comprising:
separating a MAC-layer signal received from a media access control (MAC) layer into a initial communication-channel signal and a initial data-channel signal;
encoding, using a first signal-coding scheme of the coherent optical network, the initial communication-channel signal into a communication-channel signal occupying a first frequency band;
encoding, using a second signal-coding scheme of the coherent optical network, the initial data-channel signal into a data-channel signal occupying a second frequency band that does not overlap the first frequency band;
combining the communication-channel signal and the data-channel signal to yield a combined signal; and
driving, with the combined signal, an optical modulator to modulate an optical carrier for output on a fiber coherent optical path.