Silica-based buried channel waveguides and devices
This book is designed as a self-contained introduction to both the understanding and solution of theoretical and practical design problems in single- and multimode planar optical waveguides and devices in silica-based technologies. It provides both a qualitative physical description and quantitative analytical and numerical derivations of the fundamental attributes of waveguiding, device response and simple passive optical circuitry.
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Approximation methods for modal analysis
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adiabatic amplitude analysis analytical angle arms attenuation coefficient bend radius buffer layer buried channel waveguides calculated Chapter concatenated core and cladding core-cladding interface corresponding coupler coupling curve cutoff cutoff wavelength denotes diffraction domain effective index eigenvalue equation etching excess loss expression fabrication fibre and BCW fibre core finite finite element method function fundamental mode fundamental-mode field Gaussian approximation geometry index profile input integral knco Ladouceur length method MFDM minimize modal field normalized numerical offset optical fibers optical waveguides optimal Optoelectronics parameter path planar waveguides port propagation constant pure bend loss quantify radiation loss rectangular rectangular-core refractive index refractive-index region scalar wave equation Section silica silicon single-mode slab waveguide Snyder and Love solution source wavelength splice loss square-core BCW square-core waveguide step-profile straight substrate supermodes surface roughness symmetry taper techniques transition loss transverse V-value values variation vector waveguides and devices wavenumber weak-guidance approximation y-junction