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 10, 2026

High-speed Continuous-wave Stimulated Brillouin Scattering Spectrometer for Material Analysis
07:55

High-speed Continuous-wave Stimulated Brillouin Scattering Spectrometer for Material Analysis

Published on: September 22, 2017

Difference-frequency generation in AlGaAs Bragg reflection waveguides.

Jun-Bo Han1, Payam Abolghasem, Dongpeng Kang

  • 1The Edward S. Rogers Sr. Department of Electrical and Computer Engineering, University of Toronto, 10 King's College Road, Toronto, Ontario M5S 3G4, Canada.

Optics Letters
|July 17, 2010
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

High-brightness photon-pair source based on high-Q multimode waveguide racetrack resonator.

Optics express·2025
Same author

Towards arbitrary time-frequency mode squeezing with self-conjugated mode squeezing in fiber.

Nature communications·2025
Same author

Highly Efficient Room-Temperature Nonvolatile Magnetization Switching in 2D Van Der Waals Ferromagnet Fe<sub>3</sub>GaTe<sub>2</sub>.

ACS applied materials & interfaces·2025
Same author

All-in-One Magneto-optical Memory Arrays Based on a Two-Dimensional Ferromagnetic Metal.

ACS applied materials & interfaces·2024
Same author

Unified performance analysis of interference-limited and interference-free dual-hop mixed RF/FSO systems with partial relay selection under pointing errors.

Optics express·2024
Same author

Compact all-fiber quantum-inspired LiDAR with over 100 dB noise rejection and single photon sensitivity.

Nature communications·2023
Same journal

Gaussian-modulated continuous-variable quantum key distribution over 60 km fiber using an integrated silicon photonic receiver.

Optics letters·2026
Same journal

E2E-OCT: end-to-end joint learning model using optical coherence tomography images for vocal cord leukoplakia diagnosis.

Optics letters·2026
Same journal

Holographic generation of panoramic 3D scenes by concave ellipsoidal mirror reflection.

Optics letters·2026
Same journal

Dual-pilot phase recovery with pair-wise maximum-ratio combining for coherent PONs.

Optics letters·2026
Same journal

Mapping the whispering gallery modes of a CaF<sub>2</sub> disk resonator with half-tapered fibers to estimate the fundamental mode volume.

Optics letters·2026
Same journal

Quantitative estimation of deep-subwavelength scale via dark-field scattering axial energy concentration decay profiles.

Optics letters·2026
See all related articles

We achieved Type II difference-frequency generation (DFG) in AlGaAs waveguides, producing 0.95 nW of power. This demonstrates efficient nonlinear frequency conversion for optical applications.

Area of Science:

  • Nonlinear optics
  • Semiconductor photonics
  • Integrated photonics

Background:

  • AlGaAs waveguides are promising for nonlinear optical processes.
  • Difference-frequency generation (DFG) is crucial for generating new optical frequencies.
  • Efficient nonlinear conversion is key for integrated photonic devices.

Purpose of the Study:

  • To demonstrate Type II difference-frequency generation (DFG) around 1550 nm in AlGaAs Bragg reflection waveguides.
  • To characterize the nonlinear conversion efficiency and bandwidth of the DFG process.
  • To explore the potential of AlGaAs waveguides for integrated nonlinear optics.

Main Methods:

  • Utilized a pump laser at ~778 nm and a signal in the C-band.
  • Employed AlGaAs Bragg reflection waveguides for nonlinear frequency conversion.

More Related Videos

Writing Bragg Gratings in Multicore Fibers
08:48

Writing Bragg Gratings in Multicore Fibers

Published on: April 20, 2016

Related Experiment Videos

Last Updated: Jun 10, 2026

High-speed Continuous-wave Stimulated Brillouin Scattering Spectrometer for Material Analysis
07:55

High-speed Continuous-wave Stimulated Brillouin Scattering Spectrometer for Material Analysis

Published on: September 22, 2017

Writing Bragg Gratings in Multicore Fibers
08:48

Writing Bragg Gratings in Multicore Fibers

Published on: April 20, 2016

  • Measured DFG power and estimated nonlinear conversion efficiency.

    • Main Results:

    • Achieved DFG power of 0.95 nW with pump power of 62.9 mW and signal power of 2.9 mW.
    • Estimated nonlinear conversion efficiency of 2.5 x 10(-2)%/W(-1) cm(-2) in a 1.5-mm-long sample.
    • Observed DFG over a 40 nm span without bandwidth limitation, instrumentally constrained.

    Conclusions:

    • Demonstrated efficient Type II DFG in AlGaAs waveguides.
    • The results indicate AlGaAs waveguides are suitable for nonlinear optical applications.
    • Further optimization could lead to broader bandwidth and higher power DFG devices.