Temporal and spectral control of single-photon frequency upconversion for pulsed radiation

被引：34

作者：

Gu, Xiaorong ^{[1
]}

Huang, Kun ^{[1
]}

Li, Yao ^{[1
]}

Pan, Haifeng ^{[1
]}

Wu, E. ^{[1
]}

Zeng, Heping ^{[1
]}

机构：

[1] E China Normal Univ, State Key Lab Precis Spect, Shanghai 200062, Peoples R China

来源：

APPLIED PHYSICS LETTERS | 2010年 / 96卷 / 13期

关键词：

fibre lasers; fluorescence; lithium compounds; optical control; LASERS; JITTER;

D O I：

10.1063/1.3374330

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

We demonstrate efficient single-photon detection at 1.04 mu m with quite low background counts by using the frequency upconversion detection technique with pulsed single-photon source and strong pump field prepared from two synchronized fiber lasers. Temporal and spectral control of the pump and signal lasers enabled an upconversion efficiency of 81.1%. As the system was pumped at a wavelength longer than that of the signal, the corresponding background counts were reduced down to 1.5x10(3) s(-1) due to efficient suppression of parametric fluorescence in the periodic poled lithium niobate crystal.

引用

页数：3

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