Abstract

Second-harmonic generation (SHG) from hyper-Rayleigh scattering (HRS) in a hybrid strong coupling microcavity waveguide (HSCMW) was demonstrated, which indicates a possible method using continuous-wave (cw) incident light. The cw light was coupled into the waveguide with high coupling efficiency by free space coupling technology, and then the electric field intensity of the fundamental wave was enhanced due to local oscillation. HRS occurred by lithium niobite (LN) powder inside the waveguide, resulting in the direct observation of SHG in the transverse direction, with relatively high conversion efficiency measured to be 0.032%/W. This work suggests progress on frequency conversion and is also applicable to other nonlinear processes in a waveguide.

© 2021 Optical Society of America

Power scaling of continuous-wave second harmonic generation in a MgO:PPLN ridge waveguide and the application to a compact wavelength conversion module

Chun-Yu Cho, Jui-Yu Lai, Chen-Shao Hsu, Yu-Tai Huang, Jeng-Han Jang, and Ming-Hsien Chou
Opt. Lett. 46(12) 2852-2855 (2021)

Second- and third-harmonic generation and hyper-Rayleigh scattering in porous-silicon-based photonic microcavities

T. V. Murzina, I. A. Kolmychek, A. I. Maidykovski, A. A. Nikulin, F. Yu. Sychev, and O. A. Aktsipetrov
Opt. Lett. 33(22) 2581-2583 (2008)

Nonlinear optical susceptibility of two-dimensional WS₂ measured by hyper Rayleigh scattering

Gregory T. Forcherio, Jérémy Riporto, Jeremy R. Dunklin, Yannick Mugnier, Ronan Le Dantec, Luigi Bonacina, and D. Keith Roper
Opt. Lett. 42(23) 5018-5021 (2017)

Stable integrated hyper-parametric oscillator based on coupled optical microcavities

Andrea Armaroli, Patrice Feron, and Yannick Dumeige
Opt. Lett. 40(23) 5622-5625 (2015)

Efficient second-harmonic generation in high Q-factor asymmetric lithium niobate metasurfaces

Lei Kang, Huaguang Bao, and Douglas H. Werner
Opt. Lett. 46(3) 633-636 (2021)