Phys. Rev. Lett. 94, 183601 (2005) [4 pages]Generation of Paired Photons with Controllable WaveformsReceived 23 February 2005; published 9 May 2005 We describe experiments and theory showing the generation of counterpropagating paired photons with coherence times of about 50 ns and waveforms that are controllable at a rudimentary level. Using cw lasers, electromagnetically induced transparency and cold 87Rb atoms we generate paired photons into opposing single-mode optical fibers at a rate of ∼12 000 pairs per second. © 2005 The American Physical Society URL:
http://link.aps.org/doi/10.1103/PhysRevLett.94.183601
DOI:
10.1103/PhysRevLett.94.183601
PACS:
42.50.Gy, 32.80.-t, 42.50.Dv, 42.65.Lm
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