Advanced Fiber Optics - download pdf or read online
By Luc Thévenaz
This ebook presents a entire therapy of the sector of recent fiber optics, starting with the fundamentals of the sphere summarized in an introductory bankruptcy. specialist individuals then issues equivalent to polarization results in optical fibers photonic crystal fibers highly-doped optical fibers non-linear results amplification and lasing in optical fibers supercontinuum new release, Rayleigh and inelastic scattering with purposes to sensing optical fiber element sensors, and polymer optical-fiber-based sensors.
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Additional resources for Advanced Fiber Optics
High-birefringence fibers are also called polarization-maintaining fibers, although only linear polarizations parallel to the slow and fast axes of the fibers are really maintained. More on these fibers is found in Chapter 2. Doped amplifying fibers and fiber lasers – In the mid 1980’s a way was found  to dope the fiber core with rare earth ions like neodymium, erbium, and praseodymium. When these ions are optically pumped (Fig. 20b), they can provide low noise gain to the propagating mode.
Single-mode optical fibers which enable the propagation of only one transversal mode (the LP01 mode) in fact guide two polarization modes. These modes are degenerate if the circular symmetry of the fiber is perfect. In practice, perfect circular symmetry cannot be realized, the two modes are no longer degenerate and are characterized by different propagation constants, which leads to the phenomenon of birefringence. The random nature of the asymmetry distribution along the fiber leads to another important polarization feature: polarization mode coupling, which is related to the variation of the birefringence properties along the fiber length.
Fx(y) represent the phases. e. the mathematical expression of the pattern drawn by the tip of the electric field vector with time, we must write Polarization Effects in Optical Fibers 31 a relationship that allows expressing Ex (or Ey) as a function of Ey (Ex). 7) where ∆f = fy − fx. 7) is the equation of an ellipse drawn in the transverse plane by the tip of the electric field vector at a fixed position in space and as a function of time. 2 presents the corresponding evolution of the electric field vector tip.
Advanced Fiber Optics by Luc Thévenaz