Light amplification control unit and method

Details Light amplification control unit and method Light amplification control unit and method

2006-11-07

2006-11-07

Hughes, Deandra M. (Department: 3663)

Optical: systems and elements

Optical amplifier

Raman or brillouin process

Reexamination Certificate

active

07133192

ABSTRACT:
A light amplification control unit whereby the gain of an optical amplifier can be controlled with ease. A plurality of pump light sources each generate a pump beam having the effect of amplifying a signal beam, and an external control light source generates an external control beam having a wavelength that influences the signal beam amplification effect by means of the pump beams. A multiplexing section multiplexes the pump beams with the external control beam and causes the multiplexed beams to enter an optical fiber in a direction opposite to that of the signal beam. A control section controls the output of the external control beam from the external control light source, whereby the gain of the signal beam amplified by the pump light sources can be controlled.

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Patent Abstracts of Japan Publication No. 11-145533.
Patent Abstracts of Japan Publication No. 11-74595.

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