Download Foundations for guided-wave optics by Chin-Lin Chen PDF

By Chin-Lin Chen

A classroom-tested advent to built-in and fiber optics

this article bargains an in-depth therapy of built-in and fiber optics, offering graduate scholars, engineers, and scientists with a high-quality origin of the foundations, services, makes use of, and boundaries of guided-wave optic units and structures. as well as the transmission homes of dielectric waveguides and optical fibers, this booklet covers the foundations of directional couplers, guided-wave gratings, arrayed-waveguide gratings, and fiber optic polarization elements.

the cloth is totally classroom-tested and thoroughly based to aid readers take hold of thoughts speedy and practice their wisdom to fixing difficulties. Following an summary, together with vital nomenclature and notations, the textual content investigates 3 significant themes:

  • Integrated optics
  • Fiber optics
  • Pulse evolution and broadening in optical waveguides

each one bankruptcy starts off with easy ideas and steadily builds to extra complicated options and purposes. Compelling purposes for together with every one subject are given, targeted reasons of every proposal are supplied, and steps for every derivation are conscientiously set forth. Readers how to remedy advanced difficulties utilizing actual options and simplified arithmetic.

Illustrations during the textual content relief in figuring out key ideas, whereas difficulties on the finish of every bankruptcy try out the readers' grab of the fabric.

the writer has designed the textual content for upper-level undergraduates, graduate scholars in physics and electric and laptop engineering, and scientists. each one bankruptcy is self-contained, allowing teachers to decide on a subset of issues to compare their specific direction wishes. Researchers and practitioners may also use the textual content as a self-study consultant to achieve a greater realizing of photonic and fiber optic units and platforms.

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Additional info for Foundations for guided-wave optics

Sample text

They are also referred to as thin-film waveguides, dielectric slab waveguides, or planar waveguides. 3(b), the channel, ridge, or strip width in the y direction is comparable to h and λ. They are three-dimensional waveguides. Depending on the waveguide geometry and the fabrication processes, they are known as channel waveguides, ridge or rib waveguides, and embedded strip waveguides. We will discuss three-dimensional waveguides in Chapter 5. 10) for dielectric media. For a dielectric medium with an index n, the permittivity is ε = n2 ε0 and the permeability is µ = µ0 .

To appreciate the complication involved, we introduce the effective guide index N such that β = kN . For a guided mode, N is between nf and ns . For most waveguides of practical interest, nf and ns are numerically close and the index difference (nf − ns )/nf is less than a few percent. Thus N differs from nf or ns very slightly. Therefore, an accurate determination of N is difficult. Besides, the numerical results are valid for a specific set of waveguide parameters only. To circumvent these difficulties, Kogelnik and Ramaswany [5] introduced the generalized parameters.

The fourth constant, say Ef or Ec , represents the amplitude of the guided mode. Thus the TE modes guided by a thin-film waveguide are completely determined. Note that Ec is the electric field intensity at the cover–film boundary and Ef is the peak electric field intensity of the TE mode. Therefore Ef and Ec are of interest. 2 Transverse Magnetic Modes A TM mode [3, 4] has a magnetic field component, hy , and two electric field components, ex and ez . The transverse electric field component ex is normal to the waveguide surface and the direction of propagation.

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