Single Photons Source
Sean Wu1*, Shih Hsien Chu1, Chih-Sung Chuu1
1Department of Physics, National Tsing Hua University, Hsinchu, Taiwan
* presenting author:Sean Wu,
We demonstrate a narrowband biphoton source utilizing a monolithic doubly resonant parametric down-converter. A double-passed cw pump laser at 775 nm is used to pump a monolithic PPKTP crystal to generate biphotons at 1550 nm. The biphotons have a correlation time of 54 ns with a pair count rate of 1003/s per mW of pump power.

Keywords: 1550nm, quantum communication, narrowband, biphotons, PPKTP