SPDC in ppLN ridge waveguide: an analysis for efficient twin photon generation at 1550 nm
arXiv:1709.09456 · doi:10.1088/2040-8986/aac7da
Abstract
We study modal characteristics of a customized ridge waveguide in Lithium Niobate designed to generate twin photons at telecom wavelength. A quantum analysis of SPDC predicts the possible down conversion processes and optimizes the input beam parameters for fundamental mode emission. Further, a Joint Spectral Amplitude (JSA) analysis ensures the generation of signal/idler at 1550 nm in the customized LN waveguide. A calculation of the parametric down conversion (PDC) signal power shows a dependence of L^(3/2) for a waveguide compared to a linear dependence in case of bulk crystal.
arXiv comment9 pages, 7 figures, 3 tables, journal article
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