Improved spectral resolution in time-varying interferometry

In this work, we present a procedure that allows increasing the resolution of dynamic length measurements made by spectral interferometry. The proposed scheme leads to obtaining a compact photonic instrument with the ability to measure distances, variations on positions and vibrations with a very hi...

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Detalles Bibliográficos
Autores principales: Antonacci, Julian, Morel, Eneas, Torga, Jorge, Duchowicz, Ricardo, Arenas, Gustavo
Formato: Artículo publishedVersion
Lenguaje:Inglés
Publicado: 2020
Materias:
UTN
FRD
spectral interferometry
superluminescent source (SLED)
Acceso en línea:http://hdl.handle.net/20.500.12272/4539
Aporte de:
RIA - Repositorio Institucional Abierto (UTN) de Universidad Tecnológica Nacional
id I68-R174-20.500.12272-4539
record_format dspace
institution Universidad Tecnológica Nacional
institution_str I-68
repository_str R-174
collection RIA - Repositorio Institucional Abierto (UTN)
language Inglés
topic UTN
FRD
spectral interferometry
superluminescent source (SLED)
spellingShingle UTN
FRD
spectral interferometry
superluminescent source (SLED)
Antonacci, Julian
Morel, Eneas
Torga, Jorge
Duchowicz, Ricardo
Arenas, Gustavo
Improved spectral resolution in time-varying interferometry
topic_facet UTN
FRD
spectral interferometry
superluminescent source (SLED)
description In this work, we present a procedure that allows increasing the resolution of dynamic length measurements made by spectral interferometry. The proposed scheme leads to obtaining a compact photonic instrument with the ability to measure distances, variations on positions and vibrations with a very high resolution. This measurement system includes a superluminescent source (SLED), a digital spectrometer and a Fizeau interferometer. Spectral data is processed by applying Fourier domain techniques previously applied in optical coherence tomography. The resolution of the spectral measurement system is determined by the spectrometer bandwidth and the light source employed. A signal is obtained by analysing the time evolution of a single pixel from the spectrometer CCD sensor, which is later analysed using time domain interferometry (TDI) techniques. This procedure works by detecting changes in the optical path below those that can be detected by spectral analysis. The original resolution obtained with the solely spectral techniques was 2.2 µm but was improved to 40 nm by complementary analysis of temporal signals.
format Artículo
publishedVersion
author Antonacci, Julian
Morel, Eneas
Torga, Jorge
Duchowicz, Ricardo
Arenas, Gustavo
author_facet Antonacci, Julian
Morel, Eneas
Torga, Jorge
Duchowicz, Ricardo
Arenas, Gustavo
author_sort Antonacci, Julian
title Improved spectral resolution in time-varying interferometry
title_short Improved spectral resolution in time-varying interferometry
title_full Improved spectral resolution in time-varying interferometry
title_fullStr Improved spectral resolution in time-varying interferometry
title_full_unstemmed Improved spectral resolution in time-varying interferometry
title_sort improved spectral resolution in time-varying interferometry
publishDate 2020
url http://hdl.handle.net/20.500.12272/4539
work_keys_str_mv AT antonaccijulian improvedspectralresolutionintimevaryinginterferometry
AT moreleneas improvedspectralresolutionintimevaryinginterferometry
AT torgajorge improvedspectralresolutionintimevaryinginterferometry
AT duchowiczricardo improvedspectralresolutionintimevaryinginterferometry
AT arenasgustavo improvedspectralresolutionintimevaryinginterferometry
bdutipo_str Repositorios
_version_ 1764820551908458496

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