Efficient, compact mid-infrared sources: a systematic study of intracavity difference-frequency generation

Par Conseil national de recherches du Canada

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DOI	Trouver le DOI : https://doi.org/10.3390/photonics12010025
Auteur	Rechercher : Salimian Rizi, Saeed Identifiant ORCID : https://orcid.org/0000-0002-7719-6246; Rechercher : Flannigan, Liam G. K.Identifiant ORCID : https://orcid.org/0000-0003-4694-419X; Rechercher : Chiasson, Alex; Rechercher : Kashak, Tyler; Rechercher : Poitras, Daniel¹Identifiant ORCID : https://orcid.org/0000-0003-4403-8214; Rechercher : Xu, Chang-Qing
Affiliation	Conseil national de recherches du Canada. Quantique et nanotechnologies
Bailleur de fonds	Rechercher : Natural Sciences and Engineering Research Council of Canada; Rechercher : National Research Council of Canada. High-Throughput and Secure Networks Challenge Program
Format	Texte, Article
Sujet	nonlinear optics; difference-frequency generation; mid-infrared laser; DPSS laser; overlap; black-box efficiency
Résumé	This study presents a compact intracavity difference-frequency generation (DFG) source designed for mid-infrared (mid-IR) applications. By optimizing overlap between the pump and signal beams, we obtained a black-box efficiency (𝜂𝐵𝐵) of 3.4% W⁻¹ and a maximum DFG output power of 63 mW at a wavelength of 3437 nm for a 50 mm long periodically poled lithium niobate (PPLN) crystal. The mid-IR laser was systematically studied for various PPLN lengths (29 mm, 40 mm, and 50 mm), demonstrating extensive tunability across a range of mid-IR wavelengths. Stability assessments over short-term (2 min) and long-term (2 h) periods were also investigated, showing stability values of 0.91% and 1.08%, respectively. These advancements position our DFG laser as a promising candidate for potential applications in greenhouse gas detection and satellite communication, addressing the growing demand for reliable and efficient mid-IR sources.
Date de publication	2024-12-30
Maison d’édition	MDPI
Licence	Creative Commons, Attribution 4.0 International (CC BY 4.0) https://creativecommons.org/licenses/by/4.0/deed.fr
Dans	Photonics 12, nº 1 (30 décembre 2024).
Langue	anglais
Publications évaluées par des pairs	Oui
Exporter la notice	Exporter en format RIS
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Identificateur de l’enregistrement	9a3163bf-cc67-48b7-9b48-83eb085baab0
Enregistrement créé	2025-06-16
Enregistrement modifié	2025-11-03

Date de modification :: 2025-11-12