Patent ID: 9166722
Filing Date: 2015-10-20
Classification: H04B,H04J

Abstract:
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).