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 Videos

Polarization coupling and pattern selection in a type-II optical parametric oscillator.

Gonzalo Izús1, Maxi San Miguel, Daniel Walgraef

  • 1Instituto Mediterráneo de Estudios Avanzados, IMEDEA (CSIC-UIB), Universitat de les Illes Balears, E-07071 Palma de Mallorca, Spain. izus@mdp.edu.ar

Physical Review. E, Statistical, Nonlinear, and Soft Matter Physics
|October 9, 2002
PubMed
Summary

Direct intracavity polarization coupling drives transverse pattern formation in type-II optical parametric oscillators. This nonlinear competition generates standing waves with single or dual wavelengths depending on proximity to the oscillation threshold.

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

Breaking coexistence: Zealotry vs nonlinear social impact.

Chaos (Woodbury, N.Y.)·2025
Same author

Competition between group interactions and nonlinearity in voter dynamics on hypergraphs.

Physical review. E·2025
Same author

A cross-disciplinary research framework at institution level and beyond.

Nature communications·2024
Same author

Ordering dynamics of nonlinear voter models.

Physical review. E·2024
Same author

Partisan voter model: Stochastic description and noise-induced transitions.

Physical review. E·2023
Same author

Modeling language ideologies for the dynamics of languages in contact.

Chaos (Woodbury, N.Y.)·2023

Area of Science:

  • Nonlinear Optics
  • Laser Physics
  • Optical Engineering

Background:

  • Type-II optical parametric oscillators (OPOs) exhibit complex transverse dynamics.
  • Intracavity coupling mechanisms significantly influence pattern formation in lasers and OPOs.
  • Understanding transverse pattern formation is crucial for controlling laser output characteristics.

Purpose of the Study:

  • Investigate the role of direct intracavity polarization coupling in type-II OPOs.
  • Analyze the formation of transverse intensity patterns.
  • Characterize the influence of nonlinear competition on pattern dynamics.

Main Methods:

  • Linear stability analysis to predict transverse patterns.
  • Numerical simulations to observe pattern dynamics.

Related Experiment Videos

  • Derivation of amplitude equations for theoretical description.

    • Main Results:

    • Direct intracavity polarization coupling is identified as a key factor.
    • Standing wave patterns emerge due to nonlinear competition of unstable modes.
    • Wavelength selection occurs near threshold, leading to single-wavelength standing waves.
    • Far from threshold, patterns with coexisting dual wavelengths are stabilized.

    Conclusions:

    • Intracavity polarization coupling fundamentally governs transverse pattern formation in type-II OPOs.
    • The observed patterns are a direct consequence of nonlinear mode competition.
    • The system exhibits distinct pattern behaviors near and far from the oscillation threshold.