AlGaAs-on-insulator waveguide for highly efficient photon-pair generation via spontaneous four-wave mixing

authored by
Hatam Mahmudlu, Stuart May, Alí Angulo, Marc Sorel, Michael Kues
Abstract

We report on the generation of correlated photon pairs in AlGaAs-on-insulator (AlGaAs-OI) waveguides through nonlinear spontaneous four-wave-mixing (SFWM). Our measurements reveal an SFWM pair generation efficiency of ∼0.096 × 1012 pairs/(sW2) at a wavelength of 1550 nm. This is one of the highest efficiencies achieved to date for integrated SFWM sources. A maximal coincidence-to-accidental ratio of ∼122 is measured. A spectral characterization of the device’s pair emission at the quantum level demonstrates a broad generation bandwidth of 2.0 THz, which is important for frequency multiplexing applications. Our results indicate that AlGaAs-OI is an efficient material platform for integrated quantum photonics at telecom wavelengths.

Organisation(s)
Hannover Centre for Optical Technologies (HOT)
Institute of Photonics
PhoenixD: Photonics, Optics, and Engineering - Innovation Across Disciplines
External Organisation(s)
University of Glasgow
Scuola Superiore Sant'Anna di Studi Universitari e di Perfezionamento
Type
Article
Journal
Optics letters
Volume
46
Pages
1061-1064
No. of pages
4
ISSN
0146-9592
Publication date
22.02.2021
Publication status
Published
Peer reviewed
Yes
ASJC Scopus subject areas
Atomic and Molecular Physics, and Optics
Electronic version(s)
https://doi.org/10.1364/OL.418932 (Access: Open)