Quasi-Optics Of Random Scattering In Planar Waveguides

Marek T Wlodarczyk

doi:10.1117/12.945843

14 July 1988 Quasi-Optics Of Random Scattering In Planar Waveguides

Marek T Wlodarczyk

Proceedings Volume 0927, Wave Propagation and Scattering in Varied Media; (1988) https://doi.org/10.1117/12.945843
Event: 1988 Technical Symposium on Optics, Electro-Optics, and Sensors, 1988, Orlando, FL, United States

Abstract

A quasi-optical technique is developed to investigate random surface and volume scattering of guided waves in planar waveguides. Through the use of quasi-optics, the guide extinction coefficient is calculated in a simple manner by following a zigzagging ray in the guide. The analysis demonstrates that the scattering losses resulting from random surface roughness depend more strongly on optical wavelength than the index inhomogeneity-induced losses. For a typical correlation length both surface and volume scattering losses increase at shorter wavelengths. The surface roughness-induced losses are larger for low order TM modes than the TE modes of the same order but the differences between the polarizations decrease with increased wavelength and mode order.

Citation Download Citation

Marek T Wlodarczyk "Quasi-Optics Of Random Scattering In Planar Waveguides", Proc. SPIE 0927, Wave Propagation and Scattering in Varied Media, (14 July 1988); https://doi.org/10.1117/12.945843

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