Method for controlling the pump power of an optical amplifier

Details Method for controlling the pump power of an optical amplifier Method for controlling the pump power of an optical amplifier

2004-12-15

2008-11-18

Hellner, Mark (Department: 3663)

Optical: systems and elements

Optical amplifier

Optical fiber

C359S341430

Reexamination Certificate

active

07453627

ABSTRACT:
The present disclosure relates to a method for regulating a pump power of an optical amplifier, where a multiplexed broadband optical signal having several channels is amplified at a certain gain value while a change in power is detected at the input or output of the amplifier. A new pump power is calculated and adjusted based on a previously provided stable gain state of the optical amplifier after detecting the change in power such that deviations of the gain value remain minimal as planned temporary interface transients during a specific interval. The new pump power is thus calculated very accurately and quickly according to a model that takes into account the actual gain value, the wavelength dependence of active channels, aging effects, and non-linear amplification effects.

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Mann, Shiffelgen, Froriep, “Einfuhrung in die Regelungstechnik” Hanser-Verlag Muenchen, vol. 7, 1997.

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