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Proceedings Paper

Influence of the light field scattering by corrugated electrode surface on the waveguide laser operation
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Paper Abstract

Random or periodic corrugation of the waveguide laser electrode surface may strongly influence on the waveguide mode shape, losses, and the laser beam quality. Such waveguide wall gratings can be used for phase and polarization correction of the light field. The development of the laser with such field correction elements is usually considered as a slab waveguide problem. Corrugated surface reflecting properties must be taken into account by such model. The light scattering by corrugated surface segment was investigated. The problem is formulated as electromagnetic wave diffraction on a corrugated surface segment with a periodic or statistical irregularity for the wave propagated along the electrode. The classical theory of diffraction is used. The problem for the segment of the surface is formulated as an electrodynamics problem with impedance boundary conditions. Numerical calculation of the angular dependence of the light reflection from the corrugated surface is performed. It is shown that there is an optimal groove depth giving maximum reflection at given surface structure period.

Paper Details

Date Published: 28 August 2002
PDF: 10 pages
Proc. SPIE 4904, Optical Fiber and Planar Waveguide Technology II, (28 August 2002); doi: 10.1117/12.481236
Show Author Affiliations
Vladimir A. Saetchnikov, Belarussian State Univ. (Belarus)
Sergey Leshkevich, Belarussian State Univ. (Belarus)

Published in SPIE Proceedings Vol. 4904:
Optical Fiber and Planar Waveguide Technology II
Shuisheng Jian; Steven Shen; Katsunari Okamoto, Editor(s)

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