6 Optical Fibers Single- and Few-Mode Structures and Guiding Properties
6.1 Optical Fibers: Circular Optical Waveguides
6.1.1 General Aspects
Planar optical waveguides compose a guiding region, a slab embedded between a substrate and a superstrate having identical or different refractive indices. The light-waves are guided by the confinement of the lightwaves with an oscillation solution. The number of oscillating solutions that satisfy the boundary constraints are the number of modes that can be guided. The guiding of lightwaves in an optical fiber is similar to that of the planar waveguide, except the lightwaves are guiding through a circular core embedded in a circular cladding layer.
Within the context of this book on guided wave photonics, ...
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