| DOI | Trouver le DOI : https://doi.org/10.1109/ICTON.2017.8024928 |
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| Auteur | Rechercher : Cheben, C.; Rechercher : Podmore, H.; Rechercher : Herrero, A.; Rechercher : Velasco, A. V.; Rechercher : Schmid, J. H.1; Rechercher : Scott, A.; Rechercher : Vachon, M.1; Rechercher : Lee, R.; Rechercher : Calvo, M. L.; Rechercher : Xu, D. X.1; Rechercher : Janz, S.1; Rechercher : Corredera, P. |
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| Affiliation | - Conseil national de recherches Canada. Technologies de l'information et des communications
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| Format | Texte, Article |
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| Conférence | 19th International Conference on Transparent Optical Networks (ICTON), 2-6 July 2017, Girona, Spain, Spain |
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| Résumé | We report our advances in development of on-chip Fourier-transform spectrometers. Specifically, we present applications of subwavelength engineered waveguides in a new type of a compressive-sensing Fourier-transform spatial heterodyne spectrometer chip. The spectrometer is implemented as an array of Mach-Zehnder interferometers (MZIs) integrated on a photonic chip, in a spatial heterodyne configuration. The signal from a set of MZIs comprises an undersampled discrete Fourier interferogram, which is inverted using L1-norm minimization technique to retrieve a sparse input spectrum. To implement this technique we use a subwavelength-engineered Fourier-transform spectrometer on a chip comprising 32 independent MZIs. We successfully demonstrate the retrieval of sparse input signals by collecting data from restricted sets (8 and 14) of MZIs and applying common compressive-sensing reconstruction techniques to this data. We show that this retrieval maintains the full resolution and bandwidth of the original device despite a sampling factor as low as 1/4th of a conventional (non-compressive) design |
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| Date de publication | 2017-07 |
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| Maison d’édition | IEEE |
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| Dans | |
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| Langue | anglais |
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| Publications évaluées par des pairs | Oui |
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| Numéro NPARC | 23002262 |
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| Exporter la notice | Exporter en format RIS |
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| Signaler une correction | Signaler une correction (s'ouvre dans un nouvel onglet) |
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| Identificateur de l’enregistrement | 9e67e83b-9e82-4f3d-aa73-a79ee6d2c533 |
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| Enregistrement créé | 2017-09-15 |
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| Enregistrement modifié | 2020-03-16 |
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