Experimental demonstration of Bloch mode parity change in photonic crystal waveguide

6533b854fe1ef96bd12ae0d3

RESEARCH PRODUCT

Experimental demonstration of Bloch mode parity change in photonic crystal waveguide

Davy Gérard Emmanuel Picard Benoit Cluzel Emmanuel Hadji F. De Fornel V. Calvo T. Charvolin

subject

Physics [PHYS.PHYS.PHYS-OPTICS]Physics [physics]/Physics [physics]/Optics [physics.optics]Multi-mode optical fiber [ PHYS.PHYS.PHYS-OPTICS ] Physics [physics]/Physics [physics]/Optics [physics.optics]Physics and Astronomy (miscellaneous)Guided-mode resonance business.industry Photonic integrated circuit Physics::Optics 02 engineering and technology Microstructured optical fiber 021001 nanoscience & nanotechnology 01 natural sciences Yablonovite Optics 0103 physical sciences Optoelectronics Near-field scanning optical microscope Radiation mode 010306 general physics 0210 nano-technology business ComputingMilieux_MISCELLANEOUS Photonic crystal

description

We experimentally show coupling between two photonic crystal waveguide Bloch modes having a different parity. A monomode ridge waveguide etched in a silicon-on-insulator substrate and connecting to the photonic crystal waveguide allows us to excite the even Bloch mode. Transmission measurements, performed on a broad spectral range, show the even mode propagation along the defect line. Then, spectrally resolved near-field patterns obtained by using a scanning near-field optical microscope in collection mode for wavelengths, inside and outside the multimode region of the photonic crystal waveguide, clearly demonstrate coupling phenomenon between even and odd modes.

year	journal	country	edition	language
2004-10-04

10.1063/1.1795370 https://hal.science/hal-00123570

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