DC Field | Value | Language |
---|---|---|
dc.contributor.author | Choi, BH | ko |
dc.contributor.author | Park, HyoHoon | ko |
dc.contributor.author | Chu, MJ | ko |
dc.date.accessioned | 2013-03-03T12:06:01Z | - |
dc.date.available | 2013-03-03T12:06:01Z | - |
dc.date.created | 2012-02-06 | - |
dc.date.created | 2012-02-06 | - |
dc.date.issued | 2003-10 | - |
dc.identifier.citation | IEEE JOURNAL OF QUANTUM ELECTRONICS, v.39, no.10, pp.1272 - 1280 | - |
dc.identifier.issn | 0018-9197 | - |
dc.identifier.uri | http://hdl.handle.net/10203/78595 | - |
dc.description.abstract | A long-wavelength-band erbium-doped fiber amplifier (L-band EDFA) using a pump wavelength source of 1540-nm band has been extensively investigated from a small single channel input signal to high-power wavelength division multiplexing (WDM) signals. The small-signal gain coefficient of 1545-nm pumping among the 1540-nm band is 2.25 times higher compared to the conventional 1480-nm pumping. This improvement in gain coefficient is not limited by the pumping direction. The cause for this high coefficient is explained by analyzing forward-and backward-amplified spontaneous emission spectra. The gain spectra as a function of a pump wavelength suggest that a broadband pump source as well as a single wavelength pump can be used as a 1540-nm-band pump. In the experiment for high-power WDM signals, the power conversion efficiency for 256 WDM channel input is 48.5% With 1545-nm pumping. This result shows more than 20% improvement compared with the previous highest value for the L-band EDFA. Finally, the 1545-nm bidirectionally pumped EDFA is applied as a second stage amplifier in an in-line amplifier of an optical communication link with a 1480-nm pumped first stage EDFA, in which the input power of the second-stage EDFA is +2.2 dBm. The power conversion efficiency yields a 38% improvement without noise figure degradation compared with the case of 1480-nm pumping. | - |
dc.language | English | - |
dc.publisher | IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC | - |
dc.subject | HIGH-GAIN | - |
dc.subject | WDM TRANSMISSION | - |
dc.subject | LOW-NOISE | - |
dc.subject | SYSTEMS | - |
dc.subject | EFFICIENCY | - |
dc.subject | OPERATION | - |
dc.subject | 1.6-MU-M | - |
dc.subject | SIGNAL | - |
dc.title | New pump wavelength of 1540-nm band for long-wavelength-band erbium-doped fiber amplifier (L-band EDFA) | - |
dc.type | Article | - |
dc.identifier.wosid | 000185570800013 | - |
dc.identifier.scopusid | 2-s2.0-0141918477 | - |
dc.type.rims | ART | - |
dc.citation.volume | 39 | - |
dc.citation.issue | 10 | - |
dc.citation.beginningpage | 1272 | - |
dc.citation.endingpage | 1280 | - |
dc.citation.publicationname | IEEE JOURNAL OF QUANTUM ELECTRONICS | - |
dc.contributor.localauthor | Park, HyoHoon | - |
dc.contributor.nonIdAuthor | Choi, BH | - |
dc.contributor.nonIdAuthor | Chu, MJ | - |
dc.type.journalArticle | Article | - |
dc.subject.keywordAuthor | gain coefficient | - |
dc.subject.keywordAuthor | noise figure | - |
dc.subject.keywordAuthor | optical communications | - |
dc.subject.keywordAuthor | optical fiber amplifiers | - |
dc.subject.keywordAuthor | pump wavelength | - |
dc.subject.keywordAuthor | wavelength division multiplexing | - |
dc.subject.keywordPlus | HIGH-GAIN | - |
dc.subject.keywordPlus | WDM TRANSMISSION | - |
dc.subject.keywordPlus | LOW-NOISE | - |
dc.subject.keywordPlus | SYSTEMS | - |
dc.subject.keywordPlus | EFFICIENCY | - |
dc.subject.keywordPlus | OPERATION | - |
dc.subject.keywordPlus | 1.6-MU-M | - |
dc.subject.keywordPlus | SIGNAL | - |
Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.