Telefonaktiebolaget Lm Ericsson (Publ)

Edoardo Mongiardini

Gianmarco Bruno

Giovanni Fiaschi

Riccardo Ceccatelli

A method of determining a power correction factor for an optical power of an optical channel of a wavelength division multiplexed communications network. The method comprises configuring an optical source of the communications network to generate an unmodulated optical carrier signal for the optical channel. The method further comprises determining the optical power of the unmodulated optical carrier signal (P). The method further comprises configuring the optical source to apply a test modulation pattern to the optical carrier signal, to generate a modulated optical carrier signal. The method further comprises determining the optical power of the modulated optical carrier signal (P). The method further comprises determining a power correction factor for the optical channel by determining the difference between the optical powers of the unmodulated optical carrier signal and the modulated optical carrier signal.

Setting optical power for an optical communications network channel

A telecommunications network comprising first and second access equipment on one side of the network and third and fourth access equipment on another side of the network, a respective communication link is provided between the first and the third access equipment and between the second and fourth access equipment, and further, a communication link is provided between the first and the second access equipment, and between the third and fourth access equipment, each access equipment providing an interface for communication with the network, and each access equipment is configured to be capable of causing a change in the path followed by at least some of the traffic conveyed over the communication links.

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Arenzano, Italy

Edoardo Mongiardini