material dispersion coefficient

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• Material dispersion coefficient — In an optical fiber, the material dispersion coefficient, M(λ), characterizes the amount of pulse broadening by material dispersion per unit length of fiber and per unit of spectral width. It is usually expressed in picoseconds per… …   Wikipedia

• Dispersion (optics) — This article is about dispersion of waves in optics. For other forms of dispersion, see Dispersion (disambiguation). In a prism, material dispersion (a wavelength dependent refractive index) causes different colors to refract at different angles …   Wikipedia

• Zero-dispersion wavelength — In a single mode optical fiber, the zero dispersion wavelength is the wavelength or wavelengths at which material dispersion and waveguide dispersion cancel one another. In all silica based optical fibers, minimum material dispersion occurs… …   Wikipedia

• Oxide dispersion strengthened alloy — Oxide dispersion strengthened alloys (ODS) are used for high temperature turbine blades and heat exchanger tubing.[1] Alloys of nickel are the most common but work is being done on iron aluminum alloys.[2] ODS steels are used in nuclear… …   Wikipedia

• Oxide dispersion strengthened — ODS materials are used on spacecrafts as a layer designed to protect the vehicle, especially during reentry into the atmosphere.When it comes to reentry at hypersonic speeds, the properties of gasses change dramatically. Shockwaves are created… …   Wikipedia

• Optics — For the book by Sir Isaac Newton, see Opticks. Optical redirects here. For the musical artist, see Optical (artist). Optics includes study of dispersion of light. Optics is the branch of …   Wikipedia

• telecommunications media — Introduction       equipment and systems metal wire, terrestrial and satellite radio, and optical fibre employed in the transmission of electromagnetic signals. Transmission media and the problem of signal degradation       Every… …   Universalium

• Maxwell's equations — For thermodynamic relations, see Maxwell relations. Electromagnetism …   Wikipedia

• Perfectly matched layer — A perfectly matched layer (PML) is an artificial absorbing layer for wave equations, commonly used to truncate computational regions in numerical methods to simulate problems with open boundaries, especially in the FDTD and FEM methods. The key… …   Wikipedia

• Hydrogeology — ( hydro meaning water, and geology meaning the study of the Earth) is the area of geology that deals with the distribution and movement of groundwater in the soil and rocks of the Earth s crust, (commonly in aquifers). The term geohydrology is… …   Wikipedia

• radiation — radiational, adj. /ray dee ay sheuhn/, n. 1. Physics. a. the process in which energy is emitted as particles or waves. b. the complete process in which energy is emitted by one body, transmitted through an intervening medium or space, and… …   Universalium