Cascaded high-harmonic generation in quasi-phase-matched waveguides

Jay Rutledge,Anthony Catanese,Daniel D. Hickstein,Thomas K. Allison,Scott A. Diddams,Abijith S. Kowligy

The International Conference on Ultrafast Phenomena (UP) 2022（2022）

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摘要

We report efficient, phase-coherent high-harmonic generation in chirped periodically poled lithium niobate waveguides pumped with a watt-scale 3 µm frequency comb. Simulations support a mechanism of cascaded quadratic nonlinearity and provide insight into spectral optimization.

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关键词

high-harmonic,quasi-phase-matched

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