This article is cited in 5 papers

Integral optical waveguides

Effects of surface roughness and absorption on light propagation in graded-profile waveguides

S. S. Danilenko, A. N. Osovitskii

Peoples' Friendship University of Russia

Abstract: This paper examines the effects of surface roughness and absorption on laser light propagation in graded-profile waveguiding structures. We derive analytical expressions for the scattering and absorption coefficients of guided waves and analyse these coefficients in relation to parameters of the waveguiding structure and the roughness of its boundary. A new approach is proposed to measuring roughness parameters of precision dielectric surfaces. Experimental evidence is presented which supports the main conclusions of the theory.

PACS: 42.82.Et, 42.81.Ht, 42.25.Bs

Received: 18.11.2010
Revised: 16.03.2011

 English version: Quantum Electronics, 2011, 41:6, 552–556

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