The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jul. 18, 2000
Filed:
Aug. 24, 1998
Soo-young Yoon, Kunpo, KR;
SamSung Electronics Co., Ltd., Kyungki-do, KR;
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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