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19 February 2014 Highly mode-selective quantum frequency conversion in a slab waveguide
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We analyze sum-frequency generation (SFG) in a χ(2) slab waveguide with the goal of achieving a single spatial-mode operation. We first develop Green’s function formalism for the SFG equations and then perform singular-value decomposition (SVD) of the Green’s function. By adjusting the spatial profile of the pump, we manipulate the SVD spectrum to maximize the up-conversion of one signal mode while minimizing the up-conversion of all others, which opens a possibility of realizing a spatial-mode-selective quantum frequency converter for future optical communications.
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Michael Vasilyev, Young Bong Kwon, and Yu-Ping Huang "Highly mode-selective quantum frequency conversion in a slab waveguide", Proc. SPIE 8997, Advances in Photonics of Quantum Computing, Memory, and Communication VII, 89970O (19 February 2014);

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