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Efficient single-photon frequency upconversion at with ultralow background counts
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10.1063/1.2968311
/content/aip/journal/apl/93/7/10.1063/1.2968311
http://aip.metastore.ingenta.com/content/aip/journal/apl/93/7/10.1063/1.2968311
View: Figures

Figures

Image of FIG. 1.
FIG. 1.

Experimental setup for single-photon detection at by means of frequency upconversion. FBG denotes fiber Bragg grating, WDM denotes wavelength division multiplexer, EDFA denotes erbium doped fiber amplifier, Attn denotes attenuator, and PC denotes fiber polarization controller.

Image of FIG. 2.
FIG. 2.

(a) Spectrum of the passively mode-locked fiber laser before (in black) and after (in red) the FBG. (b) Pulse duration of the incident pump laser of 7.5 ps (Gaussian fit).

Image of FIG. 3.
FIG. 3.

Conversion efficiency as a function of the working temperature of the PPLN chip. Inset: spectrum of the upconverted signal at .

Image of FIG. 4.
FIG. 4.

(a) Photon counts (in red) and background counts (in black) recorded by the Si-APD as a function of the pump power. (b) Background counts over conversion efficiency ratio dependent on the pump power.

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/content/aip/journal/apl/93/7/10.1063/1.2968311
2008-08-18
2014-04-18
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752b84549af89a08dbdd7fdb8b9568b5 journal.articlezxybnytfddd
Scitation: Efficient single-photon frequency upconversion at 1.06 μm with ultralow background counts
http://aip.metastore.ingenta.com/content/aip/journal/apl/93/7/10.1063/1.2968311
10.1063/1.2968311
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