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Parametric gain in dispersion engineered photonic crystal waveguides
A Willinger1, S Roy, M Santagiustina
1Electrical Engineering Department, Technion Israel Institute of Technology, Technion City, Haifa 32000, Israel. amnon.willinger@gmail.com
Optics Express
|March 14, 2013
Summary
We simulated parametric gain in engineered GaInP waveguides using the M-SSFT algorithm. Our findings focus on narrow-band gain in normal dispersion regimes, analyzing structural and pump wavelength effects.
Area of Science:
- Photonics
- Materials Science
- Computational Physics
Background:
- Parametric gain in engineered waveguides is crucial for optical signal processing.
- Gallium Indium Phosphide (GaInP) photonic crystals offer unique dispersion properties.
- Understanding nonlinear effects in waveguides is essential for device optimization.
Purpose of the Study:
- To numerically simulate and analyze parametric gain properties in GaInP photonic crystal waveguides.
- To investigate the impact of dispersion engineering, specifically zero-dispersion points, on parametric gain.
- To examine the influence of structural details, pump wavelength, and losses on narrow-band parametric gain.
Main Methods:
- Numerical simulation using the M-SSFT algorithm.
- Incorporation of dispersive nonlinear coefficients and losses into the simulation model.
- Analysis of 100 ps pump and signal pulses in dispersion-engineered waveguides.
Main Results:
- Identification of narrow-band parametric gain in the normal group velocity dispersion regime.
- Detailed analysis of how structural parameters and pump wavelength affect gain characteristics.
- Quantification of the impact of losses on the parametric gain performance.
Conclusions:
- The M-SSFT algorithm effectively simulates parametric gain in complex waveguide structures.
- Dispersion engineering in GaInP waveguides enables controlled narrow-band parametric gain.
- Optimization of structural details and pump wavelength is key to maximizing gain and minimizing loss.
