A numerical tool for analyzing light propagation in photonic-crystal waveguides in the presence of fabrication imperfections

S. Mazoyer; J. P. Hugonin; P. Lalanne

doi:10.1117/12.837704

22 January 2010 A numerical tool for analyzing light propagation in photonic-crystal waveguides in the presence of fabrication imperfections

S. Mazoyer, J. P. Hugonin, P. Lalanne

Author Affiliations +

Proceedings Volume 7608, Quantum Sensing and Nanophotonic Devices VII; 76080Q (2010) https://doi.org/10.1117/12.837704
Event: SPIE OPTO, 2010, San Francisco, California, United States

Abstract

As they are compatible with on-chip integration, photonic-crystal (PhC) devices operating with slow light represent a promising solution for time-domain processing of optical signals. However, the slow-light transport is strongly impacted by random fabrication fluctuations, such as variations in hole sizes, shapes or locations, and since disorder is regarded as critical in practice, there has been significant effort to determine the induced extrinsic losses. Our current understanding of how does light actually propagate in real photonic-crystal waveguides (PhCWs) relies on perturbation approaches. Although intuitively sound, the latter are only valid in the weak-scattering regime, where the structural imperfections hardly affect the light propagation. Here we introduce a new Bloch mode scattering formalism that overcomes the present limitations of perturbation approaches, since it takes into account the inevitable multiple-scattering that leads to Anderson's localization in such waveguides.

Citation Download Citation

S. Mazoyer, J. P. Hugonin, and P. Lalanne "A numerical tool for analyzing light propagation in photonic-crystal waveguides in the presence of fabrication imperfections", Proc. SPIE 7608, Quantum Sensing and Nanophotonic Devices VII, 76080Q (22 January 2010); https://doi.org/10.1117/12.837704

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