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: Jul 12, 2025

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

11.5K

Integrated Backward Second-Harmonic Generation through Optically Induced Quasi-Phase-Matching.

Ozan Yakar1, Edgars Nitiss1, Jianqi Hu1

  • 1École Polytechnique Fédérale de Lausanne (EPFL), Photonic Systems Laboratory (PHOSL), Lausanne CH-1015, Switzerland.

Physical Review Letters
|October 20, 2023
PubMed
Summary
This summary is machine-generated.

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

Large-scale integrated optoelectronic chaos for machine learning acceleration.

Nature communications·2026
Same author

High-pulse-energy integrated mode-locked laser using a Mamyshev oscillator.

Nature·2026
Same author

Sputtered AlN Buffer Layer for Low-Loss Crystalline AlN-on-Sapphire Integrated Photonics.

ACS photonics·2026
Same author

Integrated tunable green light source on silicon nitride.

Light, science & applications·2026
Same author

Broadband spectral mapping of photo-induced second-harmonic generation in silicon nitride microresonators.

Optics express·2025
Same author

Three-octave supercontinuum generation in thick crystalline aluminum nitride waveguides.

Optics letters·2025

We demonstrate efficient backward second-harmonic generation using all-optical poling, overcoming fabrication challenges with self-organized gratings. This advances integrated photonics by enabling new nonlinear functionalities.

Area of Science:

  • Nonlinear optics
  • Integrated photonics
  • Materials science

Background:

  • Efficient backward second-harmonic generation (BSHG) is crucial for integrated photonics.
  • Achieving BSHG typically requires sub-micrometer poling periods, posing significant fabrication challenges.

Purpose of the Study:

  • To report the first integrated first-order quasi-phase-matched BSHG.
  • To demonstrate a novel fabrication method using seeded all-optical poling.
  • To analyze the influence of grating period on conversion efficiency.

Main Methods:

  • Seeded all-optical poling for self-organized grating inscription.
  • Experimental comparison of backward and forward second-harmonic generation processes.
  • Analysis of grating period effects on nonlinear conversion efficiency.

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
Quantum State Engineering of Light with Continuous-wave Optical Parametric Oscillators
09:23

Quantum State Engineering of Light with Continuous-wave Optical Parametric Oscillators

Published on: May 30, 2014

14.6K

Related Experiment Videos

Last Updated: Jul 12, 2025

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

11.5K
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
Quantum State Engineering of Light with Continuous-wave Optical Parametric Oscillators
09:23

Quantum State Engineering of Light with Continuous-wave Optical Parametric Oscillators

Published on: May 30, 2014

14.6K

Main Results:

  • Successfully implemented integrated first-order quasi-phase-matched BSHG.
  • All-optical poling circumvents traditional fabrication difficulties.
  • Grating period significantly impacts conversion efficiency in both backward and forward configurations.

Conclusions:

  • Seeded all-optical poling offers a viable route for fabricating quasi-phase-matched structures.
  • The coherent photogalvanic effect enables novel nonlinear functionalities in integrated photonic devices.
  • This work paves the way for advanced integrated optical devices.