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28 February 2006 Investigation of single-photon propagation velocity in optical fiber
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Understanding the nature of single-photon propagation and any differences to the classical multi-photon regime is essential to better use the escalating number of single-photon technologies. Novel techniques and results are reported that demonstrate a consistent ability to measure the classical group velocity in an optical fiber to an accuracy in the time-offlight around ±0.2 ns in 30,000 ns. Identical techniques are then applied to single photons to determine their velocity and assess if there is any evidence that Schrödinger frequencies (N+1/2)ω alter the ω-k dispersion diagram. The evidence suggests that photons in a circular fiber show no additional dispersion but travel at the classical group velocity.
© (2006) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
J. D. Ingham, J. E. Carroll, and I. H. White "Investigation of single-photon propagation velocity in optical fiber", Proc. SPIE 6115, Physics and Simulation of Optoelectronic Devices XIV, 61150V (28 February 2006);

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