Heterodyne Interferometry Applied to the Characterization of Acousto-Electro-Optic Light Modulators
dc.contributor.author | Kitano, C. [UNESP] | |
dc.contributor.author | Higuti, R. T. [UNESP] | |
dc.contributor.author | Sakamoto, J. M. S. | |
dc.contributor.author | Pacheco, G. M. | |
dc.contributor.institution | Universidade Estadual Paulista (Unesp) | |
dc.date.accessioned | 2014-05-20T13:29:09Z | |
dc.date.available | 2014-05-20T13:29:09Z | |
dc.date.issued | 2012-01-01 | |
dc.description.abstract | When the electro-optic and acousto-optic effects are combined into a single device, the resulting acousto-electro-optic (AEO) modulator shows improved flexibility to overcome some limitations of the individual modulators or their cascade combinations. By using optical interferometry, it is possible to investigate the AEO modulator behavior as a function of this applied voltage. By this way, a lithium niobate AEO modulator is positioned in one of the arms of a Mach-Zehnder interferometer and operates at 62 MHz frequency, which constitutes the intermediate frequency of the heterodyne interferometer. Operating the AEO modulator in the acousto-optic small diffraction efficiency regime, the photodetected signal amplitude and phase are analyzed, and the induced phase shift, transmission curve and linearity response are obtained. The experimental results show good agreement with that expected from the coupled-mode theory. The possibility of linear control of the optical phase shift by the external voltage, from 0 to 2 p radians, is demonstrated. | en |
dc.description.affiliation | Univ Estadual Paulista UNESP, Dept Elect Engn, BR-15385000 Ilha Solteira, SP, Brazil | |
dc.description.affiliationUnesp | Univ Estadual Paulista UNESP, Dept Elect Engn, BR-15385000 Ilha Solteira, SP, Brazil | |
dc.format.extent | 84-87 | |
dc.identifier | http://dx.doi.org/10.1063/1.3703144 | |
dc.identifier.citation | International Congress on Ultrasonics (gdansk 2011). Melville: Amer Inst Physics, v. 1433, p. 84-87, 2012. | |
dc.identifier.doi | 10.1063/1.3703144 | |
dc.identifier.issn | 0094-243X | |
dc.identifier.lattes | 2883440351895167 | |
dc.identifier.lattes | 6405339510883203 | |
dc.identifier.orcid | 0000-0003-4201-5617 | |
dc.identifier.orcid | 0000-0001-6320-755X | |
dc.identifier.uri | http://hdl.handle.net/11449/9796 | |
dc.identifier.wos | WOS:000307631000015 | |
dc.language.iso | eng | |
dc.publisher | American Institute of Physics (AIP) | |
dc.relation.ispartof | International Congress on Ultrasonics (gdansk 2011) | |
dc.rights.accessRights | Acesso aberto | |
dc.source | Web of Science | |
dc.subject | Interferometers | en |
dc.subject | Acousto-optical devices | en |
dc.subject | Electro-optical effects | en |
dc.title | Heterodyne Interferometry Applied to the Characterization of Acousto-Electro-Optic Light Modulators | en |
dc.type | Trabalho apresentado em evento | |
dcterms.license | http://www.aip.org/pubservs/web_posting_guidelines.html | |
dcterms.rightsHolder | Amer Inst Physics | |
unesp.author.lattes | 6405339510883203[2] | |
unesp.author.lattes | 2883440351895167[1] | |
unesp.author.orcid | 0000-0003-4201-5617[2] | |
unesp.author.orcid | 0000-0001-6320-755X[1] | |
unesp.campus | Universidade Estadual Paulista (Unesp), Faculdade de Engenharia, Ilha Solteira | pt |
unesp.department | Engenharia Elétrica - FEIS | pt |
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