Dispersion

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Dispersion

In statistics, the placement of data points along a chart relative to an average or mean line. Dispersion is important to finance as the data points of say, a stock, determine the mean, which in turn helps determines the stock's trend. Dispersion is also used to determine volatility: data points all over the chart indicate that a stock has wild fluctuation in price.
References in periodicals archive ?
Redfern Optical Components, a leading supplier of next-generation fiber-based components and subsystems for the worldwide optical networking marketplace, is displaying test results of a dispersion compensator for 512 x 25GHz spaced DWDM channels in a package measuring 2 inches by 7 inches.
In new wavelength division multiplexed (WDM) optical fiber communication systems FBGs are used as wavelength filters and dispersion compensators (dispersion in optical fiber spreads optical pulses in time and limits the data rate of the fiber link.
It studies the transformation of the Chromatic Dispersion Compensators (CDCs) market due to commercialization of coherent receivers as well as advanced methods of modulation and employing of Digital Signal Processing (DSP).
Commercial shipments of tunable dispersion compensators are expected to begin by the end of January and production capacity is expected to increase to pre-flood levels by the end of the March quarter.
They are very useful as wavelength filters and dispersion compensators in the new wavelength division multiplexed optical fiber communication systems and also make excellent strain sensors that can be networked to obtain distributed strain measurements of large structures, such as bridges and ships.
As a result, Carriers can more than double faceplate density and reduce power consumption by 50 percent, as line card tuneable dispersion compensators (TCMs) are no longer required.
As such, network operators have been forced to deploy dispersion compensators throughout their networks to alleviate high PMD levels or else overhaul their entire systems.