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:
Aug. 04, 1998
Filed:
Jun. 07, 1995
Seung-hee Lee, Kangnam-gu, KR;
Samsung Electronics Co., Ltd., Kyungki-Do, KR;
Abstract
A fiber-optic amplifier with reduced noise characteristics is provided. A polarization beam splitter/recombiner splits an input signal beam into two orthogonally polarized optical signals and recombines the separately treated signals. A phase controller compensates for optical path differences that result from dividing the input signal beam into two different paths. A wavelength division multiplexing coupler couples a pump laser beam with the input signal beam. A polarization maintained doped optical fiber amplifies the split optical signals while maintaining their original states of polarization. A linear polarizer rejects from each amplified split optical signal the noise with polarization orthogonal to the amplified signal. By suppressing such noise power, a portion of amplified spontaneous emission with polarization orthogonal to the signal is suppressed, thereby reducing the total output noise power.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile