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Optical bias selector based on a multilayer a-SiC: H optical filter

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dc.contributor.authorVieira, Manuela
dc.contributor.authorVieira, Manuel
dc.contributor.authorLouro, Paula
dc.date.accessioned2019-05-13T08:47:46Z
dc.date.available2019-05-13T08:47:46Z
dc.date.issued2017
dc.description.abstractIn this paper we present a MUX/DEMUX device based on a multilayer a-SiC: H optical filter that requires nearultraviolet steady state optical switches to select desired wavelengths in the visible range. Spectral response and transmittance measurements are presented and show the feasibility of tailoring the wavelength and bandwidth of a polychromatic mixture of different wavelengths. The selector filter is realized by using a two terminal double wpi'n/pin a-SiC: H photodetector. Five visible communication channels are transmitted together, each one with a specific bit sequence. The combined optical signal is analyzed by reading out the photocurrent, under near-UV front steady state background. Data shows that 25 current levels are detected and corresponds to the thirty-two on/off possible states. The proximity of the magnitude of consecutive levels causes occasional errors in the decoded information. To minimize the errors, four parity bit are generated and stored along with the data word. The parity of the word is checked after reading the word to detect and correct the transmitted data. Results show that the background works as a selector in the visible range, shifting the sensor sensitivity and together with the parity check bits allows the identification and decoding of the different input channels. A transmission capability of 60 kbps using the generated codeword was achieved. An optoeletronic model gives insight on the system physics.pt_PT
dc.description.versioninfo:eu-repo/semantics/publishedVersionpt_PT
dc.identifier.citationVIEIRA, Manuela; VIEIRA, Manuel Augusto; LOURO, Paula – Optical bias selector based on a multilayer a-SiC: H optical filter. In Proceedings of SPIE – Third International Conference on Applications of Optics and Photonics. Faro, Portugal: SPIE, 2017. ISSN 0277-786X. Vol. 10453, pp. 1045309-1- 1045309-9pt_PT
dc.identifier.doi10.1117/12.2271359pt_PT
dc.identifier.issn0277-786X
dc.identifier.issn1996-756X
dc.identifier.urihttp://hdl.handle.net/10400.21/9979
dc.language.isoengpt_PT
dc.publisherSociety of Photo-optical Instrumentation Engineerspt_PT
dc.relationProjeto financiado no âmbito do Concurso de Projetos de Investigação, Desenvolvimento, Inovação & Criação Artística (IDI&CA) financiados pelo Instituto Politécnico de Lisboa. IPL/2016/VLC_MIMO_ISELpt_PT
dc.subjecta-SiC: H technologypt_PT
dc.subjectVisible Light Communicationpt_PT
dc.subjectWDMpt_PT
dc.subjectOptical sensorpt_PT
dc.subjectMultiplex/demultiplex techniquespt_PT
dc.titleOptical bias selector based on a multilayer a-SiC: H optical filterpt_PT
dc.typeconference object
dspace.entity.typePublication
oaire.awardURIinfo:eu-repo/grantAgreement/FCT/5876/UID%2FEEA%2F00066%2F2013/PT
oaire.citation.conferencePlaceMay 08-12, 2017 - Faro, Portugalpt_PT
oaire.citation.endPage1045309-9pt_PT
oaire.citation.startPage1045309-1pt_PT
oaire.citation.title3rd International Conference on Applications of Optics and Photonicspt_PT
oaire.citation.volume10453pt_PT
oaire.fundingStream5876
person.familyNameVieira
person.familyNameVieira
person.familyNameLouro
person.givenNameManuela
person.givenNameManuel
person.givenNamePaula
person.identifier10792
person.identifier499161
person.identifier.ciencia-id9516-E25E-BB8E
person.identifier.ciencia-idE511-8C08-E606
person.identifier.orcid0000-0002-1150-9895
person.identifier.orcid0000-0002-6662-6220
person.identifier.orcid0000-0002-4167-2052
person.identifier.ridV-7860-2017
person.identifier.ridU-8346-2017
person.identifier.scopus-author-id7202140173
person.identifier.scopus-author-id36722787500
person.identifier.scopus-author-id8845716400
project.funder.identifierhttp://doi.org/10.13039/501100001871
project.funder.nameFundação para a Ciência e a Tecnologia
rcaap.rightsclosedAccesspt_PT
rcaap.typeconferenceObjectpt_PT
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