Optical parametric generation in a lithium niobate microring with modal phase matching
Rui Luo, Yang He, Hanxiao Liang, Mingxiao Li, Jingwei Ling, and Qiang, Lin
TL;DR
This paper demonstrates high-efficiency second-harmonic generation and difference-frequency generation in a lithium niobate microring resonator, showcasing its potential for integrated nonlinear optical applications.
Contribution
It reports the first high-Q lithium niobate microring with modal phase matching achieving 1500% W$^{-1}$ efficiency for second-harmonic generation.
Findings
Achieved 1500% W$^{-1}$ conversion efficiency
Observed difference-frequency generation in telecom band
Validated lithium niobate platform for nonlinear wavelength conversion
Abstract
The lithium niobate integrated photonic platform has recently shown great promise in nonlinear optics on a chip scale. Here, we report second-harmonic generation in a high-Q lithium niobate microring resonator through modal phase matching, with a conversion efficiency of 1,500% W. Our device also allows us to observe difference-frequency generation in the telecom band. Our work demonstrates the great potential of the lithium niobate integrated platform for nonlinear wavelength conversion with high efficiencies.
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