Acta Optica Sinica, Volume. 12, Issue 4, 348(1992)
Studies on optical thin film loss from the analysis of the attenuations of guided waves: (I) theoretical analysis
The influences of extinction coefficient of refractive index, roughness of the interfaces and index heteogeneities of an optical thin film waveguide on the attenuations of guided modes are analysed theoretically in this paper. Based on the characteristics of the attenuation coefficients of diffioient modes due to these imperfaotion factors, a new method is proposed to seperate the absorption loss and scattering loss of the thin film.
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[in Chinese], [in Chinese], [in Chinese]. Studies on optical thin film loss from the analysis of the attenuations of guided waves: (I) theoretical analysis[J]. Acta Optica Sinica, 1992, 12(4): 348