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dc.contributor.authorTorres-Cubillo, Antonia
dc.contributor.authorLuque-González, José Manuel
dc.contributor.authorSánchez-Postigo, Alejandro
dc.contributor.authorFernández-Gavela, Adrián
dc.contributor.authorWanguemert-Pérez, Juan Gonzalo 
dc.contributor.authorMolina-Fernández, Íñigo 
dc.contributor.authorHalir, Robert 
dc.date.accessioned2024-02-05T12:07:48Z
dc.date.available2024-02-05T12:07:48Z
dc.date.created2024
dc.date.issued2023-12-13
dc.identifier.citationA. Torres-Cubillo et al., "High-Performance Bimodal Evanescent-Field Sensor with Coherent Phase Readout," in Journal of Lightwave Technologyes_ES
dc.identifier.urihttps://hdl.handle.net/10630/29812
dc.description.abstractBy comparing optical signals travelling through a sensing and a reference arm, interferometric photonic sensors achieve remarkable sensitivities and detection limits using sim- ple single-wavelength laser sources. Sensors based on bimodal waveguides can, in principle, provide the same advantages without requiring a reference arm, by comparing the propagation of two modes travelling through a single sensing waveguide. However, typical implementations of bimodal sensors face two challenges: (i) the abrupt mode excitation and recombination at the sensor input and output is inefficient, unbalanced in power and produces spurious reflections that can mask small sensing signals, (ii) the sinusoidal nature of the output signal can lead to ambiguities in the readout. Here we present a spiralled bimodal refractive index sensor with full mode conversion, multiplexing and demultiplexing and a coherent phase detection, providing an unambiguous linear phase readout with a compact and robust layout. Our sensors have been designed for a 1550 nm central wavelength, fabricated on a silicon nitride platform and validated with bulk sensing experiments, achieving a limit of detection of 1.67 · 10^−7 RIU.es_ES
dc.description.sponsorshipThis work has received funding from the Ministerio de Universidades, Ciencia e Innovacio ́n (FPU19/03330, PID2019- 106747RB-I00, PID2020-115204RB-I00), the Junta de An- daluc ́ıa (Agencia Andaluza del Conocimiento PY18-793, Consejer ́ıa de salud y familia PIN-0113-2020), and project TED2021-130400B-I00/ AEI/10.13039/501100011033/ Unio ́n Europea NextGenerationEU/PRTR.es_ES
dc.language.isoenges_ES
dc.publisherIEEEes_ES
dc.rightsinfo:eu-repo/semantics/openAccesses_ES
dc.subjectFotónicaes_ES
dc.subjectSilicioes_ES
dc.subjectDetectoreses_ES
dc.subject.otherSilicon photonicses_ES
dc.subject.otherRefractive index sensores_ES
dc.subject.otherBi- modal interferometeres_ES
dc.subject.otherMode converter and multiplexeres_ES
dc.subject.otherCoherent readoutes_ES
dc.titleHigh-Performance Bimodal Evanescent-Field Sensor with Coherent Phase Readoutes_ES
dc.typeinfo:eu-repo/semantics/articlees_ES
dc.centroE.T.S.I. Telecomunicaciónes_ES
dc.identifier.doi10.1109/JLT.2023.3342476
dc.type.hasVersioninfo:eu-repo/semantics/acceptedVersiones_ES


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