Method of controlling optical amplifier located along an...

Details Method of controlling optical amplifier located along an... Method of controlling optical amplifier located along an...

2011-01-04

2011-01-04

Singh, Dalzid (Department: 2613)

Optical: systems and elements

Holographic system or element

For reconstructing image

C398S094000, C398S015000, C398S017000, C398S160000

Reexamination Certificate

active

07864389

ABSTRACT:
The invention concerns shutting down and restarting optical amplifiers, such as Raman amplifiers, in an optical link, depending whether the optical amplifier is a transmitting side amplifier or a receiving side amplifier. For controlling the amplifiers, at least one diagnostic signal is to be transmitted via an auxiliary optical channel in the optical link, and a number of physical events simultaneously taking place are to be taken into account to conclude whether to shut down or to restart one of the optical amplifiers.

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ITU-T Standard Recomendation G.664, “Optical safety procedures and requirements for optical transport systems”, Mar. 2003, pp. 7-17.

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