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Tunable Super-Structured Fiber Bragg Gratings with Perfect Sequences Based on m-Sequence

2017-07-17Artigo de investigação Acesso aberto
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datacite.subject.sdg03:Saúde de Qualidade
datacite.subject.sdg07:Energias Renováveis e Acessíveis
datacite.subject.sdg11:Cidades e Comunidades Sustentáveis
dc.contributor.authorPereira, João S.
dc.contributor.authorFerreira, Marco P. M.
dc.contributor.authorGasparovic, Marko
dc.date.accessioned2026-02-12T10:18:44Z
dc.date.available2026-02-12T10:18:44Z
dc.date.issued2017-07-17
dc.description.abstractRecently, a tunable fiber Bragg grating (FBG) was developed by using stress-responsive colloidal crystals. In this paper, we have simulated the application of these nanoparticles into the super-structured fiber Bragg grating (SSFBG) written with perfect sequences derived from a short maximal-length sequence. A tunable SSFBG will be available to overcome the prohibitive temperature variation of the optical codecs. Nevertheless, we presented a method to implement coherent time spreading optical code-division multiple-access (OCDMA) where a unique code (or perfect sequence) can be reused and mixed with different wavelengths to obtain a tunable wavelength-division multiplexing (WDM) system. In order to maximize the binary throughput, we have selected a unique short maximal-length sequence composed of 7 chips that can be tuned with 7 different optical wavelengths. We found thousands of different tunable combinations that presented power contrast ratios (P/C) higher than 12 dB. When a WDM-OCDMA system used 2 different combinations simultaneously, the perfect binary detection with error correction codes was achieved successfully. The tunable SSFBG with colloidal crystals will be a simple and good alternative choice for fiber-to-the-home (FTTH) communications.eng
dc.identifier.doi10.11989/JEST.1674-862X.70912063
dc.identifier.issn1674-862X
dc.identifier.urihttp://hdl.handle.net/10400.8/15608
dc.language.isoeng
dc.peerreviewedyes
dc.publisherInstituto de Telecomunicações
dc.relation.hasversionhttps://www.it.pt/Publications/PaperJournal/26664
dc.rights.uriN/A
dc.subjectOptical code-division multiple-access (OCDMA)
dc.subjectsuper-structured fiber Bragg grating (SSFBG)
dc.subjectwavelength-division multiplexing OCDMA (WDM-OCDMA)
dc.titleTunable Super-Structured Fiber Bragg Gratings with Perfect Sequences Based on m-Sequenceeng
dc.typeresearch article
dspace.entity.typePublication
oaire.citation.endPage363
oaire.citation.issue4
oaire.citation.startPage358
oaire.citation.titleJournal of Electronic Science and Technology
oaire.citation.volume15
oaire.versionhttp://purl.org/coar/version/c_970fb48d4fbd8a85
person.familyNamePereira
person.givenNameJoão
person.identifier.ciencia-idBD1E-268C-60A0
person.identifier.orcid0000-0002-4303-2876
person.identifier.scopus-author-id56269586400
relation.isAuthorOfPublicationd236a326-78d1-4be7-afca-0adcdcc4d4ae
relation.isAuthorOfPublication.latestForDiscoveryd236a326-78d1-4be7-afca-0adcdcc4d4ae

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