Fiber-assisted single-photon spectrograph

Avenhaus, Malte; Eckstein, Andreas; Mosley, Peter J.; Silberhorn, Christine

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Fiber-assisted single-photon spectrograph

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Avenhaus, Malte
Silberhorn Research Group, Research Groups, Max Planck Institute for the Science of Light, Max Planck Society;

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Eckstein, Andreas
Silberhorn Research Group, Research Groups, Max Planck Institute for the Science of Light, Max Planck Society;

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Mosley, Peter J.
Silberhorn Research Group, Research Groups, Max Planck Institute for the Science of Light, Max Planck Society;

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Silberhorn, Christine
Silberhorn Research Group, Research Groups, Max Planck Institute for the Science of Light, Max Planck Society;

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引用

Avenhaus, M., Eckstein, A., Mosley, P. J., & Silberhorn, C. (2009). Fiber-assisted single-photon spectrograph. OPTICS LETTERS, 34(18), 2873-2875.

引用: https://hdl.handle.net/11858/00-001M-0000-002D-6BAF-9

要旨

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