SYSTEM AND METHOD FOR IN-BAND FREQUENCY-MODULATED SUPERVISORY SIGNALING FOR POLARIZATION-MULTIPLEXED SYSTEMS

摘要

Systems and method for monitoring a dual-polarization signal are disclosed. The systems and methods include adding a first supervisory signal to a first polarization component of the dual-polarization signal to get a first combined signal and adding a second supervisory signal to a second polarization component of the dual-polarization signal to get a second combined signal, either in the electrical or optical domain. The supervisory signals are arbitrary, non-complementary, and modulated at a frequency substantially lower than the modulation frequency of the dual-polarization signal. The systems and methods further include analyzing the supervisory signals upon receipt.

主权项

1. A method for monitoring a dual-polarization signal, the method comprising:
in the electrical domain, adding a first supervisory signal to a first polarization component of the dual-polarization signal to get a first combined signal; and in the electrical domain, adding a second supervisory signal to a second polarization component of the dual-polarization signal to get a second combined signal, wherein the first and second supervisory signals are:
non-complementary; andmodulated at a frequency substantially lower than the modulation frequency of the dual-polarization signal.