Low noise InGaAs/InP SPAD for fiber-based quantum applications

Fabio Signorelli,Fabio Telesca,Adriano Della Frera,Alessandro Ruggeri,Andrea Giudice,Alberto Tosi

ieee photonics conference（2021）

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摘要

We present an InGaAs/InP single-photon avalanche diode (SPAD) with $10 \mu \mathrm{m}$ -diameter active area, designed for fiber-based quantum applications. Improved design and fabrication lead to low dark count rate (1000 cps at 225 K), 25% photon detection efficiency and 100 ps (FWHM) timing jitter.

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关键词

Single-photon avalanche diode,SPAD,InGaAs/InP,quantum communications,QKD,photon-counting

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