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A versatile waveguide source of photon pairs for chip-scale quantum information processing
2009
Optics Express
Preserved Fulltext
We demonstrate a bright, bandwidth-tunable, quasi-phasematched single-waveguide source generating photon pairs near 900 nm and 1300 nm. Two-photon coincidence spectra are measured at a range of operating temperatures of a periodically-poled KTiOPO 4 (PPKTP) waveguide, which supports both type-0 and type-II spontaneous parametric downconversion. We map out relative contributions of two-photon to one-photon fluorescence for a range of operating parameters. Such a versatile device is highly
doi:10.1364/oe.17.006727
pmid:19365501
fatcat:pmvaivapibbo3bjvnhhhhytt5q