DC Field | Value | Language |
---|---|---|
dc.contributor.author | Choi, H. G. | ko |
dc.contributor.author | Takushima, Y. | ko |
dc.contributor.author | Chung, Yun Chur | ko |
dc.date.accessioned | 2013-03-08T19:27:32Z | - |
dc.date.available | 2013-03-08T19:27:32Z | - |
dc.date.created | 2012-02-06 | - |
dc.date.created | 2012-02-06 | - |
dc.date.issued | 2010-10 | - |
dc.identifier.citation | OPTICS EXPRESS, v.18, no.21, pp.21511 - 21518 | - |
dc.identifier.issn | 1094-4087 | - |
dc.identifier.uri | http://hdl.handle.net/10203/94045 | - |
dc.description.abstract | We develop a novel phasor monitor to obtain the constellation diagram from asynchronously sampled data measured by using the delay-detection technique. This phasor monitor consists of three parts; a phase-adjustment-free delay-interferometer, an optical front-end made of three photodetectors, and analog-to-digital (A/D) convertors, and a digital signal processor. We operate the A/D convertor at the sampling rate much slower than the symbol rate and acquire the data asynchronously. However, despite the use of such a slow and asynchronous sampling rate, we obtain the clear eye and constellation diagrams by utilizing the software-based synchronization technique based on a novel phased-reference detection algorithm. Thus, the proposed phasor monitor can be implemented without using high-speed A/D convertors and buffer memories, which have been the major obstacles for the cost-effective realization of the phasor monitor. For a demonstration, we realize the proposed phasor monitor by using an A/D converter operating at 9.77 MS/s and used it for the constellation monitoring and bit-error-rate (BER) estimation of 10.7-Gsymbol/s differential quadrature phase-shift keying (DQPSK) and differential 8-ary phase-shift keying (D8PSK) signals. (C) 2010 Optical Society of America | - |
dc.language | English | - |
dc.publisher | OPTICAL SOC AMER | - |
dc.subject | CARRIER PHASE | - |
dc.subject | COHERENT DETECTION | - |
dc.subject | MODULATION | - |
dc.title | Phasor monitoring of DxPSK signals using software-based synchronization technique | - |
dc.type | Article | - |
dc.identifier.wosid | 000283686500001 | - |
dc.identifier.scopusid | 2-s2.0-78049515561 | - |
dc.type.rims | ART | - |
dc.citation.volume | 18 | - |
dc.citation.issue | 21 | - |
dc.citation.beginningpage | 21511 | - |
dc.citation.endingpage | 21518 | - |
dc.citation.publicationname | OPTICS EXPRESS | - |
dc.identifier.doi | 10.1364/OE.18.021511 | - |
dc.contributor.localauthor | Chung, Yun Chur | - |
dc.contributor.nonIdAuthor | Takushima, Y. | - |
dc.description.isOpenAccess | Y | - |
dc.type.journalArticle | Article | - |
dc.subject.keywordPlus | CARRIER PHASE | - |
dc.subject.keywordPlus | COHERENT DETECTION | - |
dc.subject.keywordPlus | MODULATION | - |
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