Jove
Visualize
Contact Us
JoVE
x logofacebook logolinkedin logoyoutube logo
ABOUT JoVE
OverviewLeadershipBlogJoVE Help Center
AUTHORS
Publishing ProcessEditorial BoardScope & PoliciesPeer ReviewFAQSubmit
LIBRARIANS
TestimonialsSubscriptionsAccessResourcesLibrary Advisory BoardFAQ
RESEARCH
JoVE JournalMethods CollectionsJoVE Encyclopedia of ExperimentsArchive
EDUCATION
JoVE CoreJoVE BusinessJoVE Science EducationJoVE Lab ManualFaculty Resource CenterFaculty Site
Terms & Conditions of Use
Privacy Policy
Policies

Related Experiment Video

Updated: Jun 8, 2025

Fabrication And Characterization Of Photonic Crystal Slow Light Waveguides And Cavities
11:08

Fabrication And Characterization Of Photonic Crystal Slow Light Waveguides And Cavities

Published on: November 30, 2012

18.9K

High-efficiency second-harmonic generation in reverse-polarization dual-layer lithium niobate waveguides.

Xiao Wu, Zhenzhong Hao, Rui Ma

    Optics Letters
    |November 1, 2024
    PubMed
    Summary

    Researchers achieved 45% second-harmonic (SH) generation efficiency using a novel double-layer thin-film lithium niobate waveguide. This breakthrough in nonlinear optics utilizes efficient light confinement for on-chip light source development.

    Related Concept Videos

    You might also read

    Related Articles

    Articles linked to this work by shared authors, journal, and citation graph.

    Sort by
    Same author

    Spontaneous formation and optical manipulation of a woven domain fabric in a ferroelectric crystal.

    Light, science & applications·2026
    Same author

    Nanophotonic chip-space interfaces for multidimensional nonlinear optics.

    Nature materials·2026
    Same author

    Electrically pumped soliton microcombs on thin-film lithium niobate.

    Nanophotonics (Berlin, Germany)·2025
    Same author

    Light-amplification-assisted sum-frequency generation in erbium-doped thin-film lithium niobate optical waveguides.

    Nanophotonics (Berlin, Germany)·2025
    Same author

    Low-loss broadband i-line lithography-compatible thin-film lithium niobate edge coupler interfaced with single-mode fiber.

    Optics letters·2025
    Same author

    Mass-producible edge coupler with wedge taper and SiON stack for efficient broadband interfacing with single-mode fiber on thin-film lithium niobate.

    Optics express·2025

    Area of Science:

    • Nonlinear Optics
    • Materials Science
    • Photonics

    Background:

    • Second-harmonic (SH) generation is crucial for creating short-wavelength light sources.
    • Thin-film lithium niobate (TFLN) waveguides offer tight light confinement for efficient SH generation via mode or quasi-phase-matching (MPM/QPM).

    Purpose of the Study:

    • To report highly efficient SH generation in a TFLN waveguide without periodic poling.
    • To demonstrate the potential of TFLN for integrated nonlinear optical devices.

    Main Methods:

    • Utilized a reverse-polarized double-layer TFLN waveguide structure.
    • Employed a pump power of 67 mW in the 1550 nm band.
    • Leveraged the largest nonlinear coefficient (d33) and vertical mode interaction.

    More Related Videos

    Direct Imaging of Laser-driven Ultrafast Molecular Rotation
    10:52

    Direct Imaging of Laser-driven Ultrafast Molecular Rotation

    Published on: February 4, 2017

    9.7K
    20 mJ, 1 ps Yb:YAG Thin-disk Regenerative Amplifier
    10:17

    20 mJ, 1 ps Yb:YAG Thin-disk Regenerative Amplifier

    Published on: July 12, 2017

    11.4K

    Related Experiment Videos

    Last Updated: Jun 8, 2025

    Fabrication And Characterization Of Photonic Crystal Slow Light Waveguides And Cavities
    11:08

    Fabrication And Characterization Of Photonic Crystal Slow Light Waveguides And Cavities

    Published on: November 30, 2012

    18.9K
    Direct Imaging of Laser-driven Ultrafast Molecular Rotation
    10:52

    Direct Imaging of Laser-driven Ultrafast Molecular Rotation

    Published on: February 4, 2017

    9.7K
    20 mJ, 1 ps Yb:YAG Thin-disk Regenerative Amplifier
    10:17

    20 mJ, 1 ps Yb:YAG Thin-disk Regenerative Amplifier

    Published on: July 12, 2017

    11.4K

    Main Results:

    • Achieved an absolute SH conversion efficiency of 45%.
    • Demonstrated efficient SH generation without the need for periodic poling.
    • Showcased significant nonlinear interaction between fundamental and first-order TE modes.

    Conclusions:

    • The developed TFLN waveguide enables highly efficient on-chip SH generation.
    • This work advances integrated nonlinear optics and the development of quantum light sources.
    • The approach is applicable for generating light sources across telecom and visible bands.