title: Generation of paired photons with controllable waveforms.
abstract: 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 approximately 12 000 pairs per second.
authors.affiliation: Edward L. Ginzton Laboratory, Stanford University, Stanford, CA 94305, USA. vbalic@stanford.edu
authors.forename: Vlatko
authors.initials: V
authors.lastname: Balić
authors.forename: Danielle A
authors.initials: DA
authors.lastname: Braje
authors.forename: Pavel
authors.initials: P
authors.lastname: Kolchin
authors.forename: G Y
authors.initials: GY
authors.lastname: Yin
authors.forename: S E
authors.initials: SE
authors.lastname: Harris