Large-bandwidth ultra-low-loss guiding in bi-periodic photonic crystal waveguides
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- Jafarpour, A., Chow, E., Reinke, C. et al. Appl. Phys. B (2004) 79: 409. doi:10.1007/s00340-004-1588-1
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For the first time, we experimentally demonstrate ultra-low-loss guiding in bi-periodic photonic crystal waveguides over a large bandwidth of more than 60 nm. In such bi-periodic waveguides, we achieve a propagation loss very similar to that of a dielectric ridge waveguide, which indicates that the dominant loss mechanism in these bi-periodic waveguides is due to fabrication imperfections.