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Metamaterials in waveguide to fiber couplers

dc.contributor.authorLourenço, Paulo
dc.contributor.authorFantoni, Alessandro
dc.contributor.authorCosta, João
dc.contributor.authorFernandes, Miguel
dc.contributor.authorVieira, Manuela
dc.date.accessioned2022-03-09T11:34:18Z
dc.date.available2022-03-09T11:34:18Z
dc.date.issued2022-03-07
dc.descriptionEste trabalho foi financiado pelo Concurso Anual para Projetos de Investigação, Desenvolvimento, Inovação e Criação Artística (IDI&CA) 2021 do Instituto Politécnico de Lisboa. Código de referência IPL/2021/wavesensor_ISEL
dc.description.abstractCoupling light into or out of a photonic integrated circuit is often accomplished by establishing a vertical link between a single mode optical fibre and a resonant waveguide grating, which is then followed by a tapered and a single mode waveguides. For a chip to fibre coupler, the period of the diffraction grating is often apodized to achieve an optimal beam profile at the input of the optical fibre. The tapered waveguide operates as a spot-size converter, expanding laterally the light beam in the single mode waveguide, to match the profile of the fundamental mode of the resonant waveguide grating. In this work, we propose using subwavelength structures to modulate the refractive index of the tapered waveguide for the lateral expansion of the light beam, when operating at the 1550 nm wavelength. The engineered graded index structure is simulated through adequate numerical methods and its performance is analysed in terms of efficiency and mode profile matching. With our proposed inverted taper waveguide, we were able to obtain an adiabatic power transfer and coupling efficiency with the TE fundamental mode of -0.26 dB and -0.92 dB, respectively. This performance has been achieved in a structure 11.1 µm long and 14.27 µm wide. Furthermore, the obtained fields were fed into a resonant waveguide grating to evaluate the coupling efficiency into the fundamental mode of an optical fibre, resulting in an expected performance decrease of 0.1 dB and ~0.6 dB by comparing respectively with the power transfer and coupling efficiency of the resonant waveguide grating when propagating the calculated TE0 mode.pt_PT
dc.description.versioninfo:eu-repo/semantics/publishedVersionpt_PT
dc.identifier.citationLOURENÇO, Paulo; [et al] – Metamaterials in waveguide to fiber couplers. In Proceedings of SPIE 11995, Physics and Simulation of Optoelectronic Devices XXX, (4 March 2022). ISSN 0277-786X. Vol. 11995. Pp. 1199509-1-1199509-15.pt_PT
dc.identifier.doi10.1117/12.2610335pt_PT
dc.identifier.issn0277-786X
dc.identifier.urihttp://hdl.handle.net/10400.21/14419
dc.language.isoengpt_PT
dc.publisherSPIE OPTOpt_PT
dc.relationSFRH/BD/144833/2019 - EU funds through the FEDER European Regional Development Fund and by Portuguese national funds by FCTpt_PT
dc.relationPTDC/NAN-OPT/31311/2017 - EU funds through the FEDER European Regional Development Fund and by Portuguese national funds by FCTpt_PT
dc.relationUIDB/00066/2020 - FCT/MCTESpt_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/2021/wavesensor_ISELpt_PT
dc.subjectWaveguide/fibre couplerpt_PT
dc.subjectResonant waveguide gratingpt_PT
dc.subjectGraded index taper waveguidept_PT
dc.subjectMetamaterialpt_PT
dc.titleMetamaterials in waveguide to fiber couplerspt_PT
dc.typeconference object
dspace.entity.typePublication
oaire.citation.endPage1199509-15pt_PT
oaire.citation.startPage1199509-1pt_PT
oaire.citation.titlePhysics and Simulation of Optoelectronic Devices XXXpt_PT
oaire.citation.volume11995pt_PT
person.familyNameLourenço
person.familyNameFantoni
person.familyNameCosta
person.familyNameFernandes
person.familyNameVieira
person.givenNamePaulo
person.givenNameAlessandro
person.givenNameJoão
person.givenNameMiguel
person.givenNameManuela
person.identifier10792
person.identifier.ciencia-id431F-5C2C-00FB
person.identifier.ciencia-id241E-E87C-552F
person.identifier.ciencia-id2314-A300-7C09
person.identifier.ciencia-idDD1B-859F-EB0B
person.identifier.ciencia-id9516-E25E-BB8E
person.identifier.orcid0000-0002-8785-445X
person.identifier.orcid0000-0002-9938-0351
person.identifier.orcid0000-0002-8058-3685
person.identifier.orcid0000-0002-0765-474X
person.identifier.orcid0000-0002-1150-9895
person.identifier.ridK-1105-2016
person.identifier.ridV-7860-2017
person.identifier.scopus-author-id7006535604
person.identifier.scopus-author-id35810047500
person.identifier.scopus-author-id24450183800
person.identifier.scopus-author-id7202140173
rcaap.rightsclosedAccesspt_PT
rcaap.typeconferenceObjectpt_PT
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