Experiment shows >44% conversion efficiency in optical frequency comb generation using lithium niobate, highlighting its potential in nonlinear optics.
We demonstrate lithium-niobate-chip-based pulse-pumped second harmonic generation using an electro-optic pulse generator and a periodically poled waveguide. A visible optical frequency comb spanning from 770 - 790 nm is generated with > 44% conversion efficiency.
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Kopparapu et al. (2025) studied this question.
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