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The Japan Society of Applied Physics

Experimental verification for the POVM of single-photon avalanche photodiode operated with sub-Geiger mode

Kenji Tsujino, Toshio Yamaguchi, Midori Matsumoto, J. Kinoshita

Published Feb 8, 2018• 0 citations
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Silicon avalanche photodiodes are the most sensitive photodetectors in the visible to near-infrared region for a wavelength <1000 nm. However, when they are used for single photon detection in a Geiger mode, they are known to emit light on the controlled breakdown used to detect a photoelectron. This fluorescence light might have serious impacts on experimental applications like quantum cryptography or single-particle spectroscopy. We characterized the fluorescence behaviour of silicon avalanche photodiodes in the experimentally simple passive quenching configuration and discuss implications for their use in quantum cryptography systems.