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

TY - JOUR

T1 - Efficient and widely tunable mid-infrared sources using GaAs and AlGaAs integrated platforms for second-order frequency conversion

AU - Ulsig, Emil Z.

AU - Madsen, Magnus L.

AU - Stanton, Eric J.

AU - Reddy, Dileep V.

AU - Leger, Alexandre Z.

AU - Sørensen, Simon R.

AU - Godoy, Pedro H.

AU - Degli-Eredi, Iterio

AU - Stevens, Martin J.

AU - Hamel, Deny R.

AU - Shalm, Lynden K.

AU - Mirin, Richard P.

AU - Volet, Nicolas

N1 - Publisher Copyright: © 2024 Optica Publishing Group under the terms of the Optica Open Access Publishing Agreement.

PY - 2024/10

Y1 - 2024/10

N2 - 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.

AB - 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.

UR - http://www.scopus.com/inward/record.url?scp=85205970567&partnerID=8YFLogxK

U2 - 10.1364/OE.523615

DO - 10.1364/OE.523615

M3 - Journal article

C2 - 39573574

AN - SCOPUS:85205970567

SN - 1094-4087

VL - 32

SP - 36986

EP - 37000

JO - Optics Express

JF - Optics Express

IS - 21

ER -