Method and apparatus for increasing a transmission performance of a hybrid wavelength division multiplexing system

摘要

A hybrid wavelength division multiplexing system wherein one or more intensity modulated signals generated by optical amplitude modulators are co-propagated with one or more phase modulated signals generated by optical phase modulators, wherein a drive voltage of said optical amplitude modulator is adapted to reduce an extinction ratio of the intensity modulated signal to minimize a cross-phase modulation impact on the co-propagating phase modulated signals.

主权项

1. A hybrid wavelength division multiplexing system wherein;
one or more intensity modulated signals are co-propagated with one or more phase modulated signals; an extinction ratio of the intensity modulated signals is reduced to minimize a cross-phase modulation impact on the co-propagating phase modulated signals; the intensity modulated signal is generated by an optical amplitude modulator comprising a Mach-Zehnder modulator receiving an adapted drive voltage to modulate the intensity of an optical signal generated by a light source; said optical amplitude modulator is integrated in a transmitter of a near-end transceiver within said hybrid wavelength division multiplexing system; and the drive voltage is preconfigured or set dynamically in response to information data obtained by a receiver of a remote transceiver within said hybrid wavelength division multiplexing system and communicated to said transmitter of said near-end transceiver within said hybrid wavelength division multiplexing system via an optical supervisory channel (OSC).