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.

Date of Patent:
Aug. 30, 2005

Filed:

Apr. 29, 2003
Applicants:

Kwan-woong Song, Songnam-shi, KR;

Seong-taek Hwang, Pyongtaek-shi, KR;

Yun-je OH, Yongin-shi, KR;

Inventors:

Kwan-Woong Song, Songnam-shi, KR;

Seong-Taek Hwang, Pyongtaek-shi, KR;

Yun-Je Oh, Yongin-shi, KR;

Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01S003/00 ;
U.S. Cl.
CPC ...
Abstract

Disclosed is an L-band optical amplifier for amplifying optical signals with the wavelength band of the L-band. The L-band optical amplifier comprises an optical-amplifying section for emitting spontaneous emission and for amplifying the optical signals by pumping of the spontaneous emission, a mirror for reflecting the optical signals amplified by the optical-amplifying section to re-enter back to the optical-amplifying section, and a feedback loop connected with both terminals of the optical-amplifying section for causing spontaneous emission emitted from the optical-amplifying section to be fed back to the optical-amplifying section.


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