Efficient generation of correlated photon pairs in a microstructure fiber

Details Efficient generation of correlated photon pairs in a microstructure fiber Efficient generation of correlated photon pairs in a microstructure fiber

2005-05-27

arxiv.org/abs/quant-ph/0505211v1

Physics

Quantum Physics

11 pages, 3 figures

Scientific paper

10.1364/OL.30.001530

We report efficient generation of correlated photon pairs through degenerate four-wave mixing in microstructure fibers. With 735.7 nm pump pulses producing conjugate signal (688.5 nm) and idler (789.8 nm) photons in a 1.8 m microstructure fiber, we detect photon pairs at a rate of 37.6 kHz with a coincidence/accidental contrast of 10:1 with a full-width-at-half-maximum bandwidth of 0.7 nm. This is the highest rate reported to date in a fiber-based photon source. The nonclassicality of this source, as defined by the Zou-Wang-Mandel inequality, is violated by 1100 times the uncertainty.

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