A high-performance integrated single-photon detector for telecom wavelengths
量子物理
2015-06-26 v1
摘要
We have integrated a commercial avalanche photodiode (APD) and the circuitry needed to operate it as a single-photon detector (SPD) onto a single PC-board. At temperatures accessible with Peltier coolers (~200-240K), the PCB-SPD achieves high detection efficiency (DE) at 1308 and 1545 nm with low dark count probability (e.g. ~10-6/bias pulse at DE=20%, 220 K), making it useful for quantum key distribution (QKD). The board generates fast bias pulses, cancels noise transients, amplifies the signals, and sends them to an on-board discriminator. A digital blanking circuit suppresses afterpulsing.
关键词
引用
@article{arxiv.quant-ph/0311112,
title = {A high-performance integrated single-photon detector for telecom wavelengths},
author = {Donald S. Bethune and William P. Risk and Gary W. Pabst},
journal= {arXiv preprint arXiv:quant-ph/0311112},
year = {2015}
}
备注
(10 pages, 6 figures)