Год выпуска: 2011 Автор: Hayder Ahmed Издательство: LAP Lambert Academic Publishing Страниц: 160 ISBN: 9783843386456
Описание
The propagation characteristics of a step-index and graded-index optical planar waveguides with arbitrary refractive index profile have been analyzed by using different techniques: Transfer Matrix Method (TMM), Characteristic Matrix Method (CMM), Modified Transfer Matrix Method (MTMM) and the effective index method (EIM). These methods has been suggested and applied to a single mode LiNbO3 surface planar waveguide sample. Modal analysis of multilayer slab waveguides is studied and the applications are made for 2-channel Directional Coupler. We proposed analytical expressions of the dispersion equations for both TE and TM polarization modes. This method is a simplified form of TMM, which is allowed us to distinct modes by its order. Also, the applications are made, for comparison propose, to the multi-channel directional couplers. The results obtained from MTMM are fit with results obtained by TMM and CMM. Finally, the effective index method (EIM) was used together...