Abstract
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.
© 2009 Optical Society of America
Full Article | PDF ArticleMore Like This
Alex O. C. Davis, Paul M. Saulnier, Michał Karpiński, and Brian J. Smith
Opt. Express 25(11) 12804-12811 (2017)
K. Laiho, K. N. Cassemiro, and Ch. Silberhorn
Opt. Express 17(25) 22823-22837 (2009)
B. Melholt Nielsen, J. S. Neergaard-Nielsen, and E. S. Polzik
Opt. Lett. 34(24) 3872-3874 (2009)