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Optical Fiber Communication Systems with MATLAB® and Simulink® Models, 2nd Edition
book

Optical Fiber Communication Systems with MATLAB® and Simulink® Models, 2nd Edition

by Le Nguyen Binh
December 2014
Intermediate to advanced content levelIntermediate to advanced
899 pages
32h 28m
English
CRC Press
Content preview from Optical Fiber Communication Systems with MATLAB® and Simulink® Models, 2nd Edition
23Optical Fibers: Geometrical and Guiding Properties
2.3 Optical Fiber: General Properties
2.3.1 Geometrical Structures and Index Profile
An optical ber consists of two concentric dielectric cylinders. The inner cylinder, or core,
has a refractive index of n(r) and radius a. The outer cylinder, or cladding, has index n
2
with
n(r) > n
2
and a larger outer radius. Core of about 4–9 μm and a cladding diameter of 125 μm
are the typical values for silica-based single-mode optical ber. A schematic diagram of an
optical ber is shown in Figure 2.4.
The refractive index n of an optical waveguide is usually changed with radius r from the
ber axis (
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Publisher Resources

ISBN: 9781482217513