Photon-Number-Resolving Detection with Highly Efficient InGaAs/InAlAs Single-Photon Avalanche Diode

Photon-number-resolving detectors are in high demand for applications in photonic quantum technology. In this study, we demonstrate the photon-number-resolving capabilities of our self-developed, highly efficient InGaAs/InAlAs single-photon avalanche diode. We achieved intrinsic photon number resolv...

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Published inPhotonics Vol. 11; no. 8; p. 724
Main Authors Lee, Yi-Shan, Chen, Tzu-Yang, Chen, Yu-Ju, Kan, Wei-Hong, Liu, Xue-Wen, Shi, Jin-Wei
Format Journal Article
LanguageEnglish
Published Basel MDPI AG 01.08.2024
Subjects
Avalanche diodes
CAD
Computer aided design
Diodes
Efficiency
Electric fields
Indium aluminum arsenides
Indium gallium arsenides
Lasers
Molecular beam epitaxy
Photon avalanches
photon number resolving detector
Photons
Probability distribution
self-differencing circuit
Sensors
single photon avalanche diode
single photon detection efficiency
Temperature
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Summary:Photon-number-resolving detectors are in high demand for applications in photonic quantum technology. In this study, we demonstrate the photon-number-resolving capabilities of our self-developed, highly efficient InGaAs/InAlAs single-photon avalanche diode. We achieved intrinsic photon number resolving by harnessing the high multiplication gain generated through an avalanche process in the InAlAs multiplication layer. With a maximum single-photon detection efficiency of 46%, we were able to distinguish photon number states up to 5 from the signal probability distribution without encountering avalanche saturation that could otherwise limit the capability of photon number resolving. We reasonably anticipate that the photon-number-resolving accuracy and capability can be further improved once the noise issue in such InGaAs/InAlAs SPADs is carefully managed.
ISSN:2304-6732
2304-6732
DOI:10.3390/photonics11080724