Study of the photonic crystal waveguide based on 2D compound lattice structure
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TN252

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    Abstract:

    By employing 2D plane wave expansion (PWE) and finite difference time domain (FDTD) methods, a photonic crystal waveguide (PCW) based on the compound square lattice structure is presented. Band-gap can be observed for TM polarization and compared with the simple lattice structure based on the same material, the band-gap is increased by 62.7%. By optimizing the parameters we get the PCW with the propagation only near the wavelength of 1.55 μm and a flat group index curve in a wide wavelength range of 40 nm. And the group velocity dispersion compensation can be realized by the structure optimization. The results provide a reference for the study and application of photonic crystal waveguide based on the compound lattice structure.

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Chao-jun Wu, Yan-ping Li, Zi-yu Wang. Study of the photonic crystal waveguide based on 2D compound lattice structure[J]. Optoelectronics Letters,2009,5(5):321-323

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  • Received:June 11,2007
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