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Pulse broadening - PowerPoint PPT Presentation

Optical Fiber Communications

Optical Fiber Communications. Week 4. Dispersion. Dispersion of the transmitted optical signal causes distortion for signal transmission along optical fibers. Dispersion mechanisms within the fiber cause broadening of the transmitted light pulses as they travel along the channel.

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1.07k views • 33 slides

Chapter 4: Optical fibers and their parameters

Chapter 4: Optical fibers and their parameters. Graphic representation of three different types of how the refractive index change in the core of an optical fiber. Modes. LP01 mode - the fundamental mode and cut-off. Graph of the Bessel function. Numerical aperture.

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536 views • 19 slides

Space-time analogy

Space-time analogy. True for all pulse/beam shapes. Paraxial approximation (use of Fourier transforms). Gaussian beams (q parameters and matrices). Geometric optics. SPACE. TIME. Fourier transform in time. Fourier transform in space. Space-time analogy. Geometric optics. d 1. d 2.

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266 views • 12 slides

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Pulse broadening - PowerPoint PPT Presentation

Optical Fiber Communications

Chapter 4: Optical fibers and their parameters

Space-time analogy