We present a spectrally decorrelated photon pair source bridging the visible and telecom wavelength regions. Tailored design and fabrication of a solid-core photonic crystal fiber (PCF) lead to the emission of signal and idler photons into only a single spectral and spatial mode. Thus no narrowband filtering is necessary and the heralded generation of pure photon number states in ultrafast wave packets at telecom wavelengths becomes possible.
@article{arxiv.0908.2932,
title = {Bridging Visible and Telecom Wavelengths with a Single-Mode Broadband Photon Pair Source},
author = {Christoph Söller and Benjamin Brecht and Peter J. Mosley and Leyun Y. Zang and Alexander Podlipensky and Nicolas Y. Joly and Philip St. J. Russell and Christine Silberhorn},
journal= {arXiv preprint arXiv:0908.2932},
year = {2010}
}
Comments
4 pages, 4 figures, revised introduction, minor text changes, refined purity calculation, two references added