Sidelobe suppression in all-fiber acousto-optic tunable filter using torsional acoustic wave

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dc.contributor.authorLee, Kwang Joko
dc.contributor.authorHwang, In-Kagko
dc.contributor.authorPark, Hyun Chulko
dc.contributor.authorKim, Byoung Yoonko
dc.date.accessioned2010-11-12T02:42:55Z-
dc.date.available2010-11-12T02:42:55Z-
dc.date.created2012-02-06-
dc.date.created2012-02-06-
dc.date.issued2010-06-
dc.identifier.citationOPTICS EXPRESS, v.18, no.12, pp.12059 - 12064-
dc.identifier.issn1094-4087-
dc.identifier.urihttp://hdl.handle.net/10203/19819-
dc.description.abstractWe propose two techniques to suppress intrinsic sidelobe spectra in all-fiber acousto-optic tunable filter using torsional acoustic wave. The techniques are based on either double-pass filter configuration or axial tailoring of mode coupling strength along an acousto-optic interaction region in a highly birefringent optical fiber. The sidelobe peak in the filter spectrum is experimentally suppressed from -8.3dB to -16.4dB by employing double-pass configuration. Axial modulation of acousto-optic coupling strength is proposed using axial variation of the fiber diameter, and the simulation results show that the maximum side peak of -9.3dB can be reduced to -22.2dB. We also discuss the possibility of further spectral shaping of the filter based on the axial tailoring of acousto-optic coupling strength. (C)2010 Optical Society of America-
dc.description.sponsorshipThis work was supported by the Regional Research Center for Photonic Materials and Devices, Chonnam National University, and the Korea Research Foundation Grant funded by the Korean Government (MOEHRD, Basic Research Promotion Fund) (KRF-2008-331- C00115).en
dc.languageEnglish-
dc.language.isoen_USen
dc.publisherOPTICAL SOC AMER-
dc.subjectBANDPASS FILTER-
dc.subjectOPTICAL-FIBERS-
dc.titleSidelobe suppression in all-fiber acousto-optic tunable filter using torsional acoustic wave-
dc.typeArticle-
dc.identifier.wosid000278527700003-
dc.identifier.scopusid2-s2.0-77953591533-
dc.type.rimsART-
dc.citation.volume18-
dc.citation.issue12-
dc.citation.beginningpage12059-
dc.citation.endingpage12064-
dc.citation.publicationnameOPTICS EXPRESS-
dc.identifier.doi10.1364/OE.18.012059-
dc.contributor.localauthorKim, Byoung Yoon-
dc.contributor.nonIdAuthorHwang, In-Kag-
dc.contributor.nonIdAuthorPark, Hyun Chul-
dc.description.isOpenAccessY-
dc.type.journalArticleArticle-
dc.subject.keywordPlusBANDPASS FILTER-
dc.subject.keywordPlusOPTICAL-FIBERS-
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