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Compact silicon multimode waveguide spectrometer with enhanced bandwidth
Compact, broadband, and high-resolution spectrometers are appealing for sensing applications, but difficult to fabricate. Here we show using calibration data a spectrometer based on a multimode waveguide with 2 GHz resolution, 250 GHz bandwidth, and a 1.6 mm × 2.1 mm footprint. Typically, such spect...
Autores principales: | , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
Nature Publishing Group
2017
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Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5349552/ https://www.ncbi.nlm.nih.gov/pubmed/28290537 http://dx.doi.org/10.1038/srep43454 |
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author | Piels, Molly Zibar, Darko |
author_facet | Piels, Molly Zibar, Darko |
author_sort | Piels, Molly |
collection | PubMed |
description | Compact, broadband, and high-resolution spectrometers are appealing for sensing applications, but difficult to fabricate. Here we show using calibration data a spectrometer based on a multimode waveguide with 2 GHz resolution, 250 GHz bandwidth, and a 1.6 mm × 2.1 mm footprint. Typically, such spectrometers have a bandwidth limited by the number of modes supported by the waveguide. In this case, an on-chip mode-exciting element is used to repeatably excite distinct collections of waveguide modes. This increases the number of independent spectral channels from the number of modes to this number squared, resulting in an extension of the usable range. |
format | Online Article Text |
id | pubmed-5349552 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2017 |
publisher | Nature Publishing Group |
record_format | MEDLINE/PubMed |
spelling | pubmed-53495522017-03-17 Compact silicon multimode waveguide spectrometer with enhanced bandwidth Piels, Molly Zibar, Darko Sci Rep Article Compact, broadband, and high-resolution spectrometers are appealing for sensing applications, but difficult to fabricate. Here we show using calibration data a spectrometer based on a multimode waveguide with 2 GHz resolution, 250 GHz bandwidth, and a 1.6 mm × 2.1 mm footprint. Typically, such spectrometers have a bandwidth limited by the number of modes supported by the waveguide. In this case, an on-chip mode-exciting element is used to repeatably excite distinct collections of waveguide modes. This increases the number of independent spectral channels from the number of modes to this number squared, resulting in an extension of the usable range. Nature Publishing Group 2017-03-14 /pmc/articles/PMC5349552/ /pubmed/28290537 http://dx.doi.org/10.1038/srep43454 Text en Copyright © 2017, The Author(s) http://creativecommons.org/licenses/by/4.0/ This work is licensed under a Creative Commons Attribution 4.0 International License. The images or other third party material in this article are included in the article’s Creative Commons license, unless indicated otherwise in the credit line; if the material is not included under the Creative Commons license, users will need to obtain permission from the license holder to reproduce the material. To view a copy of this license, visit http://creativecommons.org/licenses/by/4.0/ |
spellingShingle | Article Piels, Molly Zibar, Darko Compact silicon multimode waveguide spectrometer with enhanced bandwidth |
title | Compact silicon multimode waveguide spectrometer with enhanced bandwidth |
title_full | Compact silicon multimode waveguide spectrometer with enhanced bandwidth |
title_fullStr | Compact silicon multimode waveguide spectrometer with enhanced bandwidth |
title_full_unstemmed | Compact silicon multimode waveguide spectrometer with enhanced bandwidth |
title_short | Compact silicon multimode waveguide spectrometer with enhanced bandwidth |
title_sort | compact silicon multimode waveguide spectrometer with enhanced bandwidth |
topic | Article |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5349552/ https://www.ncbi.nlm.nih.gov/pubmed/28290537 http://dx.doi.org/10.1038/srep43454 |
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