DC Field | Value | Language |
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dc.contributor.author | Bo, Tianwai | ko |
dc.contributor.author | Kim, Hoon | ko |
dc.date.accessioned | 2020-08-25T04:55:17Z | - |
dc.date.available | 2020-08-25T04:55:17Z | - |
dc.date.created | 2020-08-19 | - |
dc.date.created | 2020-08-19 | - |
dc.date.created | 2020-08-19 | - |
dc.date.created | 2020-08-19 | - |
dc.date.created | 2020-08-19 | - |
dc.date.issued | 2020-08 | - |
dc.identifier.citation | JOURNAL OF LIGHTWAVE TECHNOLOGY, v.38, no.16, pp.4307 - 4314 | - |
dc.identifier.issn | 0733-8724 | - |
dc.identifier.uri | http://hdl.handle.net/10203/275941 | - |
dc.description.abstract | The Kramers-Kronig (KK) receiver has recently drawn a great deal of attention due to its capability to extract the complex-valued electric field of optical signal from the directly detected signal. One practical issue is the recovery of the DC component lost upon the reception using an AC-coupled photo-detector. Due to the nonlinear operation of KK algorithm, it is necessary to recover the DC value of the signal before executing the algorithm. A common method to estimate the DC component was to sweep the DC value added to the detected signal, while measuring the system performance metrics such as bit-error ratio (BER). In this article, we propose and demonstrate a simple one-step DC recovery method for KK receiver. By inserting a zero-padded preamble in the modulation data and measuring a couple of statistical averages of the detected AC-coupled signal, we can estimate the DC component accurately even when the carrier-to-signal power ratio (CSPR) is low. Thus, this method estimates the DC component rapidly without time-consuming and power-hungry signal processing such as demodulation and BER calculation. We carry out a series of computer simulations and experiments to measure the accuracy of the proposed method. The results show that the proposed method incurs negligible sensitivity penalties compared with the conventional DC-sweep method. Also, provided in this paper is the design guideline on the proposed method. | - |
dc.language | English | - |
dc.publisher | IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC | - |
dc.title | DC Component Recovery in Kramers-Kronig Receiver Utilizing AC-Coupled Photo-Detector | - |
dc.type | Article | - |
dc.identifier.wosid | 000554904400012 | - |
dc.identifier.scopusid | 2-s2.0-85089897016 | - |
dc.type.rims | ART | - |
dc.citation.volume | 38 | - |
dc.citation.issue | 16 | - |
dc.citation.beginningpage | 4307 | - |
dc.citation.endingpage | 4314 | - |
dc.citation.publicationname | JOURNAL OF LIGHTWAVE TECHNOLOGY | - |
dc.identifier.doi | 10.1109/JLT.2020.2990905 | - |
dc.contributor.localauthor | Kim, Hoon | - |
dc.description.isOpenAccess | N | - |
dc.type.journalArticle | Article | - |
dc.subject.keywordAuthor | Optical transmitters | - |
dc.subject.keywordAuthor | Optical filters | - |
dc.subject.keywordAuthor | Amplitude modulation | - |
dc.subject.keywordAuthor | Optical receivers | - |
dc.subject.keywordAuthor | Optical sensors | - |
dc.subject.keywordAuthor | Optical modulation | - |
dc.subject.keywordAuthor | Optical receiver | - |
dc.subject.keywordAuthor | digital signal processing | - |
dc.subject.keywordAuthor | direct detection | - |
dc.subject.keywordPlus | SUBCARRIER MODULATION | - |
dc.subject.keywordPlus | TRANSMISSION | - |
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