High-Speed Single-Photon Frequency Upconversion With Synchronous Pump Pulses

Author

Gu, Xiaorong ; Li, Yao ; Pan, Haifeng ; Wu, E. ; Zeng, Heping

Author_Institution

State Key Lab. of Precision Spectrosc., East China Normal Univ., Shanghai, China

Volume

15

Issue

6

fYear

2009

Firstpage

1748

Lastpage

1752

Abstract

Single-photon signals at 1.56 ??m were converted into the visible region by sum-frequency generation, with synchronous pump pulses at 1.03 ??m in a periodically poled lithium niobate crystal. The signal and pump sources were provided by two synchronized mode-locked fiber lasers at the operation rate of 7.88 MHz. Such a high-speed single-photon upconversion system has shown an overall detection efficiency of 10.4%. The corresponding background noise was measured to be 3.3 ?? 10³ s^-1. The noise-equivalent power in this scheme was 9.93 ?? 10^-17 W/Hz^1/2, which was the lowest compared to the other upconversion systems with similar pump and signal wavelengths.

Keywords

high-speed optical techniques; infrared detectors; lithium compounds; optical frequency conversion; optical pumping; photodetectors; LiNbO₃; background noise; detection efficiency; efficiency 10.4 percent; frequency 7.88 MHz; high-speed single-photon frequency upconversion; infrared single-photon detectors; noise-equivalent power; operation rate; periodically poled lithium niobate crystal; signal sources; sum-frequency generation; synchronized mode-locked fiber lasers; synchronous pump pulses; wavelength 1.03 mum; wavelength 1.56 mum; Frequency upconversion; nonlinear optics; quantum detectors; single-photon detection;

fLanguage

English

Journal_Title

Selected Topics in Quantum Electronics, IEEE Journal of

Publisher

ieee

ISSN

1077-260X

Type

jour

DOI

10.1109/JSTQE.2009.2024329

Filename

5286845