Efficient and widely tunable mid-infrared sources using GaAs and AlGaAs integrated platforms for second-order frequency conversion

Emil Z. Ulsig*, Magnus L. Madsen, Eric J. Stanton, Dileep V. Reddy, Alexandre Z. Leger, Simon R. Sørensen, Pedro H. Godoy, Iterio Degli-Eredi, Martin J. Stevens, Deny R. Hamel, Lynden K. Shalm, Richard P. Mirin, Nicolas Volet

*Corresponding author for this work

Research output: Contribution to journal/Conference contribution in journal/Contribution to newspaperJournal articleResearchpeer-review

Abstract

Integrated coherent mid-infrared (mid-IR) sources are crucial for spectroscopy and quantum frequency conversion (QFC) to facilitate scalable fiber-based application of single photons. Direct mid-IR emission with broad tunability poses fundamental challenges from the gain media and mirror components. This paper presents a characterization of a second-order nonlinear platform. It showcases a mid-IR parametric coherent source with a continuous tuning range exceeding 230 nm centered around 2425 nm, achieved through difference-frequency generation (DFG). The nonlinear coefficient d14 of gallium arsenide (GaAs) and aluminum gallium arsenide (AlGaAs) on insulator is experimentally determined via second-harmonic generation (SHG) in waveguides of various lengths, and the tolerance of the process is investigated. These materials are explored for their high conversion efficiency, utilizing monolithic epitaxial quantum dots and integrated waveguides for QFC. The results demonstrate efficient and tunable mid-IR emission suitable for compact, scalable quantum emitters, with applications in environmental and health monitoring.

Original languageEnglish
JournalOptics Express
Volume32
Issue21
Pages (from-to)36986-37000
Number of pages15
ISSN1094-4087
DOIs
Publication statusPublished - Oct 2024

Fingerprint

Dive into the research topics of 'Efficient and widely tunable mid-infrared sources using GaAs and AlGaAs integrated platforms for second-order frequency conversion'. Together they form a unique fingerprint.

Cite this