arXivDaily arXiv每日学术速递 周一至周五更新
arXiv 1906.02258quant-phphysics.ins-detphysics.optics
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自由空间和光纤耦合单光子探测器的校准

Calibration of free-space and fiber-coupled single-photon detectors

Thomas Gerrits, Alan Migdall, Joshua C. Bienfang, John Lehman, Sae Woo Nam, Jolene Splett, Igor Vayshenker, Jack Wang

摘要:

我们测量了单光子探测器在851 nm和1533.6 nm波长附近的探测效率。我们研究了一个自由空间耦合的单光子雪崩二极管的空间均匀性,并提出了之间的融合拼接和连接的光纤耦合单光子探测器的比较。我们发现,我们的扩展相对不确定度为一个单一的测量的检测效率是低至0.70%的光纤耦合测量在1533.6 nm和高达1.78%,我们的自由空间表征在851.7 nm。检测效率确定包括对单光子检测器的后脉冲、暗计数和计数率效应的校正,其中检测效率被内插到以指定的检测计数率操作。

英文摘要:

We measure the detection efficiency of single-photon detectors at wavelengths near 851 nm and 1533.6 nm. We investigate the spatial uniformity of one free-space-coupled single-photon avalanche diode and present a comparison between fusion-spliced and connectorized fiber-coupled single-photon detectors. We find that our expanded relative uncertainty for a single measurement of the detection efficiency is as low as 0.70 % for fiber-coupled measurements at 1533.6 nm and as high as 1.78 % for our free-space characterization at 851.7 nm. The detection-efficiency determination includes corrections for afterpulsing, dark count, and count-rate effects of the single-photon detector with the detection efficiency interpolated to operation at a specified detected count rate.

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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