Measurement of single-photon detection efficiency of InGaAs/InP avalanche photodiodes in wavelength-division-multiplexed schemes

Heung-sun Jeong,Dong Wook Kim,Seoung Hun Lee,Kyong Hon Kim

Optical Internet 2014（2014）

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摘要

We report on experimentally measured detection efficiency of single-photon detectors (SPDs) based on wavelength-division-multiplexed (WDM) InGaAs/InP avalanche photodiodes (APDs). Multiple SPDs combined in a WDM scheme can be used to overcome the detection speed limit of a single SPD. There is a tradeoff between the detection efficiency of parallel SPDs in the WDM scheme and the optical loss caused by the WDM devices.

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关键词

iii-v semiconductors,avalanche photodiodes,gallium arsenide,indium compounds,optical losses,wavelength division multiplexing,ingaas-inp,detection speed limit,optical loss,single-photon detection efficiency,wavelength-division-multiplexed schemes,ingaas avalanche photodiode,quantum cryptography,single-photon detector

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