Regulated optical amplifier

Details Regulated optical amplifier Regulated optical amplifier

1995-01-11

1996-03-05

Hellner, Mark

Optical: systems and elements

Optical amplifier

Correction of deleterious effects

359341, H01S 300

Patent

active

054972647

ABSTRACT:
An amplifying optical fiber amplifies a plurality of wavelength-multiplexed carrier waves. The invention enables the gain as seen by each of the carrier waves to be maintained, in particular when the total input power varies. For that purpose, amplified spontaneous "reverse" emission light is servo-controlled in power. After being filtered in a filter and detected by a photodiode, said light controls the powering current supplied to two laser diodes for pumping the fiber. The invention applies in particular to implementing optical transmission networks.

REFERENCES:
patent: 5363385 (1994-11-01), Heidemann
patent: 5374973 (1994-12-01), Maxham et al.
French Search Report FR 9400321.

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