Self-quenching InGaAs/InP single photon avalanche detector utilizing zinc diffusion rings

被引：22

作者：

Cheng, James ^{[1
]}

You, Sifang ^{[2
]}

Rahman, Samia ^{[1
]}

Lo, Yu-Hwa ^{[1
]}

机构：

[1] Univ Calif San Diego, Dept Elect & Comp Engn, La Jolla, CA 92093 USA

[2] Univ Calif San Diego, Dept Phys, La Jolla, CA 92093 USA

来源：

OPTICS EXPRESS | 2011年 / 19卷 / 16期

关键词：

FLOATING GUARD RING; PHOTODIODES; JUNCTION;

D O I：

10.1364/OE.19.015149

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

InGaAs single photon avalanche detectors have previously been fabricated with a negative-feedback mechanism, which allows for free-running Geiger-mode operation and improves the signal noise. To reduce the dark count and improve the detection efficiency, zinc diffusion is necessary to define the p-i-n junction and separate the high-field region from any mesa surface. Here, we demonstrate the benefits of a simple Zn-diffused geometry, yielding 1550nm single-photon detection efficiencies of 20% with a dark count rate of 8 kHz at 140 K for a 22 mu m diameter device. (C) 2011 Optical Society of America

引用

页码：15149 / 15154

页数：6

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