Frequency tunable continuous THz wave generation in a periodically poled fiber

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dc.contributor.authorLiu, Weilin
dc.contributor.authorZhang, Jiejun
dc.contributor.authorRioux, Maxime
dc.contributor.authorViens, Jeff
dc.contributor.authorMessaddeq, Younes [UNESP]
dc.contributor.authorYao, Jianping
dc.contributor.institutionUniversité Laval
dc.contributor.institutionUniversity of Ottawa
dc.contributor.institutionUniversidade Estadual Paulista (Unesp)
dc.date.accessioned2015-10-22T06:18:42Z
dc.date.available2015-10-22T06:18:42Z
dc.date.issued2015-05-01
dc.description.abstractAn all-fiber approach to terahertz generation using a periodically poled optical fiber is proposed and experimentally demonstrated. In the proposed approach, a continuous-wave THz wave is generated at a periodically poled fiber by beating two optical wavelengths from two laser sources with the wavelength spacing corresponding to the frequency of the THz wave. The key component in the system is the periodically poled fiber, which is made by a twin-hole fiber with the fiber core residing between two holes. The twin-hole fiber is then thermally poled at a temperature of similar to 260 degrees C with a voltage of 3.3 kV applied to the silver electrodes inside the two holes to introduce second-order nonlinearity. The quasi phase matching (QPM) condition is achieved by periodically erasing the thermal poling induced second-order nonlinearity with an ultraviolet laser, which enhances the energy conversion efficiency. The proposed approach is validated by an experiment. The emission of a THz wave centered at 3.8 THz with an output power of 0.5 mu W is observed. The frequency tunability between 2.2 and 3.8 THz is also experimentally demonstrated.en
dc.description.affiliationSchool of Electrical Engineering and Computer Science, University of Ottawa, ON K1N 6N5, Canada
dc.description.affiliationCentre d’optique, photonique et laser, Université Laval, Québec, QC G1V 0A6, Canada.
dc.description.affiliationUnespInstituto de Química, UNESP, 14800-90, Araraquara, SP, Brazil.
dc.description.sponsorshipNatural Science and Engineering Research Council of Canada (NSERC)
dc.format.extent470-477
dc.identifierhttp://ieeexplore.ieee.org/xpl/articleDetails.jsp?arnumber=7066985
dc.identifier.citationIeee Transactions On Terahertz Science And Technology. Piscataway: Ieee-inst Electrical Electronics Engineers Inc, v. 5, n. 3, p. 470-477, 2015.
dc.identifier.doi10.1109/TTHZ.2015.2412381
dc.identifier.issn2156-342X
dc.identifier.lattes2998503841917815
dc.identifier.urihttp://hdl.handle.net/11449/129626
dc.identifier.wosWOS:000353897000022
dc.language.isoeng
dc.publisherIeee-inst Electrical Electronics Engineers Inc
dc.relation.ispartofIeee Transactions On Terahertz Science And Technology
dc.relation.ispartofjcr2.955
dc.rights.accessRightsAcesso restrito
dc.sourceWeb of Science
dc.subjectDifference frequency generation (DFG)en
dc.subjectFiber nonlinear opticsen
dc.subjectQuasi-phase matching (QPM)en
dc.subjectSecond-order nonlinearityen
dc.subjectTerahertz (THz)en
dc.subjectThermal polingen
dc.titleFrequency tunable continuous THz wave generation in a periodically poled fiberen
dc.typeArtigo
dcterms.licensehttp://www.ieee.org/publications_standards/publications/rights/rights_policies.html
dcterms.rightsHolderIeee-inst Electrical Electronics Engineers Inc
unesp.author.lattes2998503841917815
unesp.campusUniversidade Estadual Paulista (Unesp), Instituto de Química, Araraquarapt

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