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.
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License of this version: | CC BY 4.0 Unported - https://creativecommons.org/licenses/by/4.0/ |
Publication type: | Article |
Publishing status: | publishedVersion |
Publication date: | 2021 |
Keywords english: | Aluminum gallium arsenide, Efficiency, Four wave mixing, Optical waveguides, Photons, Spectrum analyzers, Correlated photon pairs, Frequency multiplexing, Photon pair generations, Quantum levels, Quantum photonics, Spectral characterization, Spontaneous four-wave mixing, Telecom wavelengths, photon, photonics, Gallium compounds |
DDC: | 530 | Physik |
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