Fiber-assisted single-photon spectrograph

被引：143

作者：

Avenhaus, Malte ^{[1
]}

Eckstein, Andreas ^{[1
]}

Mosley, Peter J. ^{[1
]}

Silberhorn, Christine ^{[1
]}

机构：

[1] Max Planck Inst Sci Light, Jr Res Grp IQO, D-91058 Erlangen, Germany

来源：

OPTICS LETTERS | 2009年 / 34卷 / 18期

关键词：

ENTANGLEMENT;

D O I：

10.1364/OL.34.002873

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

We demonstrate the implementation of a fiber-integrated spectrograph utilizing chromatic group velocity dispersion (GVD) in a single-mode fiber. By means of GVD we stretch an ultrafast pulse in time in order to spectrally resolve single photons in the time domain, detected by single-photon counting modules with very accurate temporal resolution. As a result, the spectrum of a very weak pulse is recovered from a precise time measurement with high signal-to-noise ratio. We demonstrate the potential of our technique by applying our scheme to analyzing the joint spectral intensity distribution of a parametric downconversion source at a telecommunication wavelength. (C) 2009 Optical Society of America

引用

页码：2873 / 2875

页数：3

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