Tunable Grating Couplers for Broadband Operation Using Thermo-Optic Effect in Silicon

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dc.contributor.authorKim, Jong Hunko
dc.contributor.authorPark, Ji-Hwanko
dc.contributor.authorHan, Sun-Kyuko
dc.contributor.authorBae, Min-Jungko
dc.contributor.authorYoo, Dong-Eunko
dc.contributor.authorLee, Dong-Wookko
dc.contributor.authorPark, Hyo-Hoonko
dc.date.accessioned2016-04-20T06:15:15Z-
dc.date.available2016-04-20T06:15:15Z-
dc.date.created2015-10-29-
dc.date.created2015-10-29-
dc.date.issued2015-11-
dc.identifier.citationIEEE PHOTONICS TECHNOLOGY LETTERS, v.27, no.21, pp.2304 - 2307-
dc.identifier.issn1041-1135-
dc.identifier.urihttp://hdl.handle.net/10203/205202-
dc.description.abstractWe demonstrate a tunable grating coupler for broadband operation using an impurity-doped thermo-optic heater fabricated by complementary metal-oxide-semiconductor-compatible processes. As a thermo-optic heater, a p-n diode is employed to have a p-type region inside of an in-coupling grating connected with outside p+/n+ contacts and is heated directly by a current flow through the grating. Applying a forward-bias voltage of 7 V, we shift the central wavelength of the grating coupler from 1525 to 1574 nm with a coupling efficiency of close to -4 dB. Considering a 1-dB bandwidth at each central wavelength, we extend the operational bandwidth to nearly 90 nm. A thermal tuning efficiency of 0.23 nm/mW and transient responses of 32/22 mu s for heating/cooling times are obtained.-
dc.languageEnglish-
dc.publisherIEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC-
dc.subjectNANOPHOTONIC WAVE-GUIDES-
dc.subjectON-INSULATOR-
dc.subjectOPTICAL-FIBERS-
dc.subjectEFFICIENT-
dc.subjectCOMPACT-
dc.titleTunable Grating Couplers for Broadband Operation Using Thermo-Optic Effect in Silicon-
dc.typeArticle-
dc.identifier.wosid000362289700024-
dc.identifier.scopusid2-s2.0-84957538018-
dc.type.rimsART-
dc.citation.volume27-
dc.citation.issue21-
dc.citation.beginningpage2304-
dc.citation.endingpage2307-
dc.citation.publicationnameIEEE PHOTONICS TECHNOLOGY LETTERS-
dc.identifier.doi10.1109/LPT.2015.2462081-
dc.contributor.localauthorPark, Hyo-Hoon-
dc.contributor.nonIdAuthorPark, Ji-Hwan-
dc.contributor.nonIdAuthorHan, Sun-Kyu-
dc.contributor.nonIdAuthorBae, Min-Jung-
dc.contributor.nonIdAuthorYoo, Dong-Eun-
dc.contributor.nonIdAuthorLee, Dong-Wook-
dc.type.journalArticleArticle-
dc.subject.keywordAuthorGrating coupler-
dc.subject.keywordAuthorsilicon photonics-
dc.subject.keywordAuthorthermo-optic-
dc.subject.keywordAuthortunable grating-
dc.subject.keywordAuthordirect heating-
dc.subject.keywordAuthorpn diode-
dc.subject.keywordPlusNANOPHOTONIC WAVE-GUIDES-
dc.subject.keywordPlusON-INSULATOR-
dc.subject.keywordPlusOPTICAL-FIBERS-
dc.subject.keywordPlusEFFICIENT-
dc.subject.keywordPlusCOMPACT-
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