Estimation of Losses in Optical Film Waveguides with Rough Surfaces and Absorption

The method of small indignations with use of the optics-geometrical approach solves a problem of light propagation in a film waveguide with rough surfaces and absorption. Experimental researches specified waveguide structures are carried out. Results of these researches substantially do not correspond to conclusions of the developed theory. As a result of the analysis of the revealed discrepancies and additional calculations more exact model of scattering process in film waveguides with rough surfaces is offered.

film waveguide, roughness, absorption, attenuation coefficient, experimental researches