By A. Bruce Carlson
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Additional resources for Communication Systems An Introduction to Signals and Noise in Electrical Communication Bruce Carlson (Solutions_Manual)
For example, supercontinuum generation is possible with rather low power levels. , with gases. That may be useful for optical sensors. Nanofibers are often fabricated by tapering large fibers while heating them. The non-tapered fiber part can serve for launching light into the nanofiber. 20 Optical Fiber Technology: Basics of Fibers Plastic Optical Fibers Plastic optical fibers (POF) are optical fibers made of polymer materials. While their performance is inferior to that of glass fibers, they allow for mechanically more robust and cost-effective solutions due to the simpler handling and installation.
Its effects are discussed on the following page. The transverse refractive index profile is modified. This can affect the shape of the transverse intensity distribution. Such effects are usually rather weak in fibers. For very high intensities, however, they can lead to critical self-focusing (p. 85) and subsequently to damage of the fiber. For very short and broadband pulses, the above description of the Kerr effect as a simple change of refractive index is not accurate. A more complete description includes the additional effect of selfsteepening.
Essentially to obtain small dispersion of third and higher order. This means that the group delay dispersion does not vary much within the wavelength region of interest. Fibers with substantially reduced dispersion slope, called dispersion-flattened fibers, can be realized by optimizing the refractive index profile. 52 Optical Fiber Technology: Passive Fibers for Data Transmission Dispersion Compensation In principle, any distortions of a pulse or a telecom signal arising from chromatic dispersion can be undone by applying dispersion of the opposite sign.