Xiangyan Ding, Jing Ma, L. Tan, A. Helmy, Dongpeng Kang
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Uncorrelated photon pair generation in asymmetric heterogeneously coupled waveguides
We develop a technique to tailor modal group velocities in asymmetric heterogeneously coupled waveguides such that uncorrelated photon pairs can be generated directly. Design examples based on lithium niobate thin film waveguides are provided.