Generation of broadband biphotons and their compression in an optical fiber |
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| Authors: | G Kh Kitaeva M V Chekhova and O A Shumilkina |
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| Institution: | (1) Department of Physics, University of Toronto, M5S 1A7 Toronto, ON, Canada;(2) Department of Physics, University of Illinois at Urbana-Champaign, 1110 West Green Street, 61801-3080 Urbana, IL, USA;(3) U.C. Berkeley, 366 Leconte Hall, 94720-7300 Berkeley, CA, USA |
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| Abstract: | The generation of biphoton wave packets with a broad spectrum owing to quasi-phase-matched spontaneous parametric down-conversion
in a crystal with an aperiodic poling has been considered. Biphotons at the exit of such a sample are not Fourier limited;
i.e., their correlation time is much larger than the inverse width of the spectrum. It has been shown that if the inverse
grating vector varies linearly along the sample length, the generated biphoton wave packets can be compressed in time by transmitting
two-photon light through an optical fiber. |
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