Generation and Detection of Down-converted Photon Pairs at 2.080 µm
Shashi Prabhakar, Taylor Shields, Damian Powell, Gregor G. Taylor, Dmitry Morozov, Mehdi Ebrahim, Michael Kues, Lucia Caspani, Corin B. E. Gawith, Robert H. Hadfield, Matteo Clerici · Conference on Lasers and Electro-Optics · 2019
We report the generation and coincidence-to-accidental ratio characterization of a pulsed spontaneous parametric down-conversion photon pair source at 2.080 µm, as a basis for free-space quantum communication in an atmospheric window with low solar background.