Athermal echelle grating and tunable echelle grating demultiplexers using a Mach-Zehnder interferometer launch structure

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DOI	Trouver le DOI : https://doi.org/10.1364/OE.453273
Auteur	Rechercher : Melati, Daniele¹Identifiant ORCID : https://orcid.org/0000-0002-3427-0186; Rechercher : Xu, Dan-Xia¹Identifiant ORCID : https://orcid.org/0000-0002-0490-5224; Rechercher : Cheriton, Ross¹Identifiant ORCID : https://orcid.org/0000-0003-0522-0187; Rechercher : Wang, Shurui¹; Rechercher : Vachon, Martin¹; Rechercher : Schmid, Jens H.¹; Rechercher : Cheben, Pavel¹Identifiant ORCID : https://orcid.org/0000-0003-4232-9130; Rechercher : Janz, Siegfried¹
Affiliation	Conseil national de recherches Canada. Électronique et photonique avancées
Format	Texte, Article
Résumé	We present a comparative experimental study of three silicon photonic echelle grating demultiplexers that are integrated with a Mach-Zehnder interferometer (MZI) launch structure. By appropriate choice of the MZI configuration, the temperature induced shift of the demultiplexer channel wavelengths can be suppressed (athermal) or enhanced (super-thermal) or be controlled by an on-chip micro-heater. The latter two configurations allow the channel wavelengths to be actively tuned using lower power than possible by temperature tuning a conventional echelle demultiplexer. In the athermal configuration, the measured channel spectral shift is reduced to less than 10 pm/°C, compared to the 83 pm/°C shift for an unmodified echelle device. In super-thermal operation an enhanced channel temperature tuning rate of 170 pm/°C is achieved. Finally, by modulating the MZI phase with an on-chip heater, the demultiplexer channels can be actively tuned to correct for ambient temperature fluctuations up to 20 °C, using a drive current of less than 20 mA.
Date de publication	2022-04-25
Maison d’édition	Optica Publishing Group
Licence	Creative Commons, Attribution 4.0 International (CC BY 4.0) https://creativecommons.org/licenses/by/4.0/deed.fr
Dans	Optics Express 30, nº 9 (2022) : 14202–.
Langue	anglais
Publications évaluées par des pairs	Oui
Exporter la notice	Exporter en format RIS
Signaler une correction	Signaler une correction (s'ouvre dans un nouvel onglet)
Identificateur de l’enregistrement	01f9cc0e-51a1-4492-ad4b-8574404e4c22
Enregistrement créé	2023-09-27
Enregistrement modifié	2023-10-05

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