Optical amplification device with automatic gain control

Details Optical amplification device with automatic gain control Optical amplification device with automatic gain control

2006-03-21

2006-03-21

Hellner, Mark (Department: 3663)

Optical: systems and elements

Optical amplifier

Correction of deleterious effects

C359S337120

Reexamination Certificate

active

07016105

ABSTRACT:
A method of automatic gain control for use in an optical amplification device comprising a variable optical attenuator and an optical amplifier connected downstream of the optical attenuator includes the steps of measuring the power at the input of the amplification device, determining the number of channels at the input of the amplification device as a function of the measured power knowing the attenuation value of a span upstream of the device, and modifying the gain of the amplifier as a function of the number of channels determined in this way.

REFERENCES:
patent: 6359726 (2002-03-01), Onaka et al.
patent: 6400479 (2002-06-01), Zhou et al.
patent: 6529319 (2003-03-01), Youn et al.
patent: 0975103 (2000-01-01), None
patent: 1033834 (2000-09-01), None

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