Open AccessHigh-flux and broadband biphoton sources with controlled frequency entanglement
Author(s) -
Ryosuke Shimizu,
Keiichi Edamatsu
Publication year - 2009
Publication title -
optics express
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.394
H-Index - 271
ISSN - 1094-4087
DOI - 10.1364/oe.17.016385
Subject(s) - quantum entanglement , physics , broadband , photon , optics , phase matching , photon entanglement , interference (communication) , spontaneous parametric down conversion , quantum optics , phase (matter) , continuous wave , laser , telecommunications , quantum , quantum mechanics , computer science , channel (broadcasting)
We report the high-flux and broadband generation of biphotons with controlled frequency entanglement. For the generation of the entangled state consisting of frequency-anticorrelated photons, we use PPMgSLT pumped by a continuous-wave (cw) laser. Meanwhile, the state consisting of frequency-correlated photons is produced from PPKTP under the extended phase-matching condition. Both states exhibited interference patterns with over 90% visibilities in two-photon interference experiments.