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arXiv quant-ph/0311112quant-ph
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一种高性能的电信波段集成单光子探测器

A high-performance integrated single-photon detector for telecom wavelengths

Donald S. Bethune, William P. Risk, Gary W. Pabst

摘要:

我们已经集成了一个商业雪崩光电二极管(APD)和所需的电路操作它作为一个单光子探测器(SPD)到一个单一的PC板。在Peltier冷却器可达到的温度(~200- 240 K)下,PCB-SPD在1308和1545 nm处实现了高检测效率(DE),具有低暗计数概率(例如,在DE= 20%,220 K时~10-6/偏置脉冲),使其可用于量子密钥分发(QKD)。该板产生快速偏置脉冲,消除噪声瞬变,放大信号,并将其发送到板载ADC。数字消隐电路抑制后脉冲。

英文摘要:

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.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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