Optical: systems and elements – Optical amplifier – Optical fiber
Patent
1998-08-24
2000-07-18
Hellner, Mark
Optical: systems and elements
Optical amplifier
Optical fiber
359124, H01S 0300
Patent
active
060915412
ABSTRACT:
A multichannel 3-stage optical fiber amplifier includes a first amplification unit for amplifying an input multichannel multiplexed signal light, a gain equalization unit for equalizing gains for each channel by causing a different amount of loss for each channel in the amplified signal light having a different gain at each channel by the first amplification unit, and a second amplification unit for amplifying the signal light output from the gain equalization unit. Thus, an equalized gain with respect to each channel wavelength can be obtained by a gain equalization unit placed between two amplifiers. Also, signal-to-noise ratio performance can be improved by removing spontaneous emission noise using a wavelength divider.
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Bushnell Esq. Robert E.
Hellner Mark
Samsung Electronics Co,. Ltd.
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