Multiple-scales analysis of photonic crystal waveguides

Supermodes in multiple coupled photonic crystal waveguides.

We analyze the supermodes in multiple coupled photonic crystal waveguides for long-wavelengths. In the tight-binding limit we obtain analytic results that agree with fully numerical calculations. We find that when the field flips sign after a single photonic crystal period, and there is an odd number of periods between adjacent waveguides, the supermode order is reversed, compared to that in co...

Nanopillars photonic crystal waveguides.

We present a novel type of a waveguide, which consists of several rows of periodically placed dielectric cylinders. In such a nanopillars photonic crystal waveguide, light confinement is due to the total internal reflection, while guided modes dispersion is strongly affected by waveguide periodicity. Nanopillars waveguide is multimode, where a number of modes is equal to the number of rows buil...

Photonic Crystal Nanocavities and Waveguides

Fabrication of optical structures has evolved to a precision which allows us to control light within etched nanostructures. Nano-optic cavities can be used for efficient and flexible concentration of light in small volumes, and control over both emission wavelength and frequency. Conversely, if a· periodic pattern is defined in the top semitransparent metal layer by lithography, it is possible ...

Nonlinear GaInP Photonic Crystal Waveguides

We report highly nonlinear GaInP photonic crystal waveguides. An extremely large hybrid nonlinearity was demonstrated in a static experiment as well as in a wavelength conversion scheme at 10 Gbit/s. Highly efficient four wave mixing was also demonstrated for either CW or pulsed pump signals. Photonic crystyals; Nonlinear optics; Nonlinear wave mixing

Experimental demonstration of photonic crystal based waveguides