Full characterization of spontaneous parametric down conversion in non-ideal quarter-wavelength semiconductor Bragg reflection waveguide

Bin Niu; Bin Niu; Cheng Qian; Xu Jing; Xu Jing; Chenquan Wan; Chenquan Wan; Yuechan Kong; Yuechan Kong; Tangsheng Chen; Tangsheng Chen; Yichen Liu; Yichen Liu; Liangliang Lu; Liangliang Lu; Liangliang Lu

doi:10.3389/fphy.2022.1099909

Frontiers in Physics (Jan 2023)

Full characterization of spontaneous parametric down conversion in non-ideal quarter-wavelength semiconductor Bragg reflection waveguide

Bin Niu,
Bin Niu,
Cheng Qian,
Xu Jing,
Xu Jing,
Chenquan Wan,
Chenquan Wan,
Yuechan Kong,
Yuechan Kong,
Tangsheng Chen,
Tangsheng Chen,
Yichen Liu,
Yichen Liu,
Liangliang Lu,
Liangliang Lu,
Liangliang Lu

Affiliations

Bin Niu: Science and Technology on Monolithic Integrated Circuits and Modules Laboratory, Nanjing Electronic Devices Institute, Nanjing, China
Bin Niu: Nanjing Chip Valley Industrial Technology Institute, Nanjing, China
Cheng Qian: Key Laboratory of Optoelectronic Technology of Jiangsu Province, School of Physical Science and Technology, Nanjing Normal University, Nanjing, China
Xu Jing: Science and Technology on Monolithic Integrated Circuits and Modules Laboratory, Nanjing Electronic Devices Institute, Nanjing, China
Xu Jing: Nanjing Chip Valley Industrial Technology Institute, Nanjing, China
Chenquan Wan: Science and Technology on Monolithic Integrated Circuits and Modules Laboratory, Nanjing Electronic Devices Institute, Nanjing, China
Chenquan Wan: Nanjing Chip Valley Industrial Technology Institute, Nanjing, China
Yuechan Kong: Science and Technology on Monolithic Integrated Circuits and Modules Laboratory, Nanjing Electronic Devices Institute, Nanjing, China
Yuechan Kong: Nanjing Chip Valley Industrial Technology Institute, Nanjing, China
Tangsheng Chen: Science and Technology on Monolithic Integrated Circuits and Modules Laboratory, Nanjing Electronic Devices Institute, Nanjing, China
Tangsheng Chen: Nanjing Chip Valley Industrial Technology Institute, Nanjing, China
Yichen Liu: Research Center for Quantum Optics and Quantum Communication, School of Science, Qingdao University of Technology, Nanjing, China
Yichen Liu: National Laboratory of Solid State Microstructures, Nanjing University, Nanjing, China
Liangliang Lu: Science and Technology on Monolithic Integrated Circuits and Modules Laboratory, Nanjing Electronic Devices Institute, Nanjing, China
Liangliang Lu: Key Laboratory of Optoelectronic Technology of Jiangsu Province, School of Physical Science and Technology, Nanjing Normal University, Nanjing, China
Liangliang Lu: National Laboratory of Solid State Microstructures, Nanjing University, Nanjing, China

DOI: https://doi.org/10.3389/fphy.2022.1099909
Journal volume & issue: Vol. 10

Abstract

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Entangled photons are important for testing foundations of quantum physics and are at the heart of quantum technology. Integrated photonics has overwhelming dominance in terms of density and performance, making it a promise route for scalable quantum information processing. AlGaAs-based materials having large second-order non-linearities, direct bandgap and strong electro-optical effect can offer distinct advantages in quantum light source. Here we report a non-ideal quarter-wavelength Bragg reflection waveguide for generating three types of spontaneous parametric down-conversion processes. A general solution to the dispersion equation is derived and employed for designing high efficiency devices by taking into account the influence of core layer aluminium concentration. We further design and fabricate a Bragg reflection waveguide sample based on the analysis, and experimentally characterize its phase matching types and spectral brightness. Our work paves the path for the development of portable quantum light sources.

Published in Frontiers in Physics

ISSN: 2296-424X (Online)
Publisher: Frontiers Media S.A.
Country of publisher: Switzerland
LCC subjects: Science: Physics
Website: https://www.frontiersin.org/journals/physics

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