Correlated Photon Pair Generation by Dual-Element PPKTP Waveguide over GHz repetition rate
Xiao Tang, Lijun Ma, Oliver T. Slattery
A compact scheme for high-speed frequency doubling and down-conversion on a single dual-element PPKTP waveguide is investigated. Optimal temperature selection for the entire waveguide is achieved and coincidence is observed. A pulsed pump scheme is used to achieve high speed coincidence.