Method and optical amplifier for laser safety protection and...

Details Method and optical amplifier for laser safety protection and... Method and optical amplifier for laser safety protection and...

2007-11-30

2011-10-11

Phan, Hanh (Department: 2613)

Optical communications

Optical repeater system

Supervisory signal by repeater

C398S177000, C398S033000, C398S030000, C398S031000, C398S032000, C359S337000, C359S341430

Reexamination Certificate

active

08036538

ABSTRACT:
A method for laser safety protection in an optical communication system includes: a downstream station detecting whether an identification signal loaded by an upstream station on a main optical channel in a direction from the upstream station to the downstream station, exist on the main optical channel; if the identification signal is not detected, the downstream station executing a scheduled safety protection procedure. Methods for loading an identification signal on a main optical channel in an optical communication system and an optical amplifier of laser safety protection, which implement loading the identification signal by controlling the change of pump light of optical amplifier or the wave motion of signal light of main optical channel, are also provided. The solution makes it possible to reliably detect a fiber failure when RAMAN amplifiers or remotely-pumped amplifiers exist, thereby implementing laser safety protection.

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