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Related Experiment Videos

Second-harmonic generation with pulses in a coupled-resonator optical waveguide.

Shayan Mookherjea1, Amnon Yariv

  • 1Department of Electrical Engineering, 136-93 California Institute of Technology, Pasadena, California 91125, USA. shayan@caltech.edu

Physical Review. E, Statistical, Nonlinear, and Soft Matter Physics
|February 28, 2002
PubMed
Summary

We present a new method for generating and propagating optical pulses in coupled-resonator waveguides using nonlinear polarization. This approach accounts for temporal dynamics, improving upon previous continuous-wave models for second-harmonic generation.

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Gover and Yariv Reply.

Physical review letters·2021

Area of Science:

  • Nonlinear optics
  • Quantum optics
  • Condensed matter physics

Background:

  • Coupled-resonator optical waveguides (CROWs) are key components in integrated photonics.
  • Nonlinear optical processes like second-harmonic generation (SHG) are crucial for frequency conversion.
  • Existing models for SHG in CROWs often simplify temporal dynamics.

Purpose of the Study:

  • To develop a theoretical framework for pulse generation and propagation in nonlinear CROWs.
  • To explicitly include temporal dependencies in the waveguide field distributions.
  • To provide a more accurate description of second-harmonic generation in pulsed regimes.

Main Methods:

  • Utilizing a method based on coupled-mode theory.
  • Applying nonlinear polarization driving forces.

Related Experiment Videos

  • Incorporating slowly modulated Bloch wave functions to represent temporal field evolution.

    • Main Results:

    • Successfully described the generation and propagation of optical pulses in a nonlinear CROW.
    • Demonstrated a formalism that explicitly accounts for temporal dependencies.
    • Provided a theoretical basis for pulsed SHG in such systems, distinct from continuous-wave (cw) models.

    Conclusions:

    • The developed formalism offers a more comprehensive understanding of nonlinear optical phenomena in CROWs.
    • This work advances the modeling of light-matter interactions in integrated photonic devices.
    • The findings are relevant for designing advanced optical signal processing and frequency conversion systems.