Scaling the performances of integrated long period grating refractometers

Autor:	Clement Deleau, Han Cheng Seat, Olivier Bernal, Frederic Surre
Přispěvatelé:	Equipe Capteurs optiques et systèmes intégrés intelligents (LAAS-OASIS), Laboratoire d'analyse et d'architecture des systèmes (LAAS), Université Toulouse Capitole (UT Capitole), Université de Toulouse (UT)-Université de Toulouse (UT)-Institut National des Sciences Appliquées - Toulouse (INSA Toulouse), Institut National des Sciences Appliquées (INSA)-Université de Toulouse (UT)-Institut National des Sciences Appliquées (INSA)-Université Toulouse - Jean Jaurès (UT2J), Université de Toulouse (UT)-Université Toulouse III - Paul Sabatier (UT3), Université de Toulouse (UT)-Centre National de la Recherche Scientifique (CNRS)-Institut National Polytechnique (Toulouse) (Toulouse INP), Université de Toulouse (UT)-Université Toulouse Capitole (UT Capitole), Université de Toulouse (UT), Institut National Polytechnique (Toulouse) (Toulouse INP), Ecole Nationale Supérieure d'Electrotechnique, d'Electronique, d'Informatique, d'Hydraulique et de Télécommunications (ENSEEIHT), Université de Toulouse (UT)-Université de Toulouse (UT), James Watt School of Engineering [Univ Glasgow], University of Glasgow
Rok vydání:	2022
Předmět:	[SPI]Engineering Sciences [physics] refractomtry silicon nitride integrated photonics long period gratings LPG Atomic and Molecular Physics and Optics
Zdroj:	Optics Letters Optics Letters, 2022, 47 (23), pp.6093. ⟨10.1364/OL.464616⟩
ISSN:	1539-4794 0146-9592
Popis:	International audience; In this Letter, a theoretical analysis and design methodology of integrated long period gratings (LPGs) for refractometric applications are proposed. A detailed parametric analysis is applied to a LPG model based on two strip waveguides to highlight the main design variables and their effect on the refractometric performances, with focus on the spectral sensitivity and signature response. To illustrate the proposed methodology, four variants of the same LPG design are simulated with eigenmode expansion, displaying a wide range of sensitivities up to 300,000 nm/RIU with figures of merit (FOMs) as high as 8000.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_dedup___::99fd8cf35ec7e5be424e2e4b1b05a269 https://doi.org/10.1364/ol.464616 Zobrazit plný text záznamu