Quantum efficiency measurement of single-photon detectors using photon pairs generated in optical fibers

Quantum efficiency measurement of single-photon detectors using photon pairs generated in optical fibers
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使用光纤中产生的光子对测量单光子探测器的量子效率

DOI:
10.1364/josab.27.001857
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发表时间:
2010-07
影响因子:
1.9
通讯作者:
Cui, Liang
Cui, Liang
中科院分区:
物理与天体物理3区
文献类型:
--
作者:
Li, Xiaoying;Quan, Limei;Yang, Lei;Guo, Xueshi;Ma, Xiaoxin;Cui, Liang

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利用脉冲泵浦在色散位移光纤中产生的相关信号光子对和闲频光子对,测量了InGaAs/InP雪崩光电二极管单光子探测器的量子效率。由于光子对的收集效率是正确推导量子效率的关键参数,我们通过研究光子对泵浦、信号和闲频光子光谱的相关性来仔细表征收集效率。本研究使我们能够利用不同带宽的光子对来获得单光子探测器的量子效率。
Using the correlated signal and idler photon pairs generated in a dispersion-shifted fiber by a pulsed pump, we measure the quantum efficiency of an InGaAs/InP avalanche photodiode-based single-photon detector. Since the collection efficiency of photon pairs is a key parameter to correctly deduce the quantum efficiency, we carefully characterize the collection efficiency by studying the correlation dependence of photon pairs on the spectra of pump, signal, and idler photons. This study allows us to obtain the quantum efficiency of the single-photon detector by using photon pairs with various kinds of bandwidth.
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