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Coupled-mode theory and propagation losses in photonic crystal waveguides

Abstract : Mode coupling phenomena, manifested by transmission "mini-stopbands", occur in two-dimensional photonic crystal channel waveguides. The huge difference in the group velocities of the coupled modes is a new feature with respect to the classical Bragg reflection occurring, e.g., in distributed feedback lasers. We show that an adequate ansatz of the classical coupled-mode theory remarkably well accounts for this new phenomenon. The fit of experimental transmission data from GaAs-based photonic crystal waveguides then leads to an accurate determination of the propagation losses of both fundamental and higher, low-group-velocity modes.
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Contributor : Fatima Pereira Connect in order to contact the contributor
Submitted on : Wednesday, October 30, 2013 - 11:32:44 AM
Last modification on : Wednesday, November 25, 2020 - 5:06:03 PM

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Ségolène Olivier, Henri Benisty, Claude Weisbuch, Christopher J. M. Smith, Thomas F. Krauss, et al.. Coupled-mode theory and propagation losses in photonic crystal waveguides. Optics Express, Optical Society of America - OSA Publishing, 2003, 11 (13), pp.1490-1496. ⟨10.1364/OE.11.001490⟩. ⟨hal-00878529⟩



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