Closer to a Quantum Internet
Philip Hemmer · Physics · 2013
We report on a source of ultranarrow-band photon pairs generated by widely nondegenerate cavityenhanced spontaneous down-conversion.The source is designed to be compatible with Pr 3þ solid state quantum memories and telecommunication optical fibers, with signal and idler photons close to 606 nm and 1436 nm, respectively.Both photons have a spectral bandwidth around 2 MHz, matching the bandwidth of Pr 3þ doped quantum memories.This source is ideally suited for long distance quantum communication architectures involving solid state quantum memories.