Definitions for "DWDM"
Related Terms:
Wdm , Dense wavelength division multiplexing, Cwdm, Wavelength division multiplexing, Fiber-optic, Fibre optic, Fibre optic cable, Dark fiber, Fiber optic, Mmf, Dark fibre, Fibre optics, Multimode, Fiber optic cable, Multimode fiber, Single mode fiber, Fibre, Fiber optics, Single-mode, Fiber, Smf, Single-mode fiber, Fiber to the home, Fiber-optic cable, Optical fibre, Fots, Fiberoptics, Oadm, Ftth, Fttp, Singlemode fiber, Optical cable, Foirl, Sonet, Pon, Single mode, Optical fiber, Fttc, Mcpc, Imux, Singlemode, Tdm, Synchronous optical network, Multiplexing, Sc connector, Pdh, Mux, Sdh, Synchronous digital hierarchy, Optical carrier
Dense Wave Division Multiplex
(Dense Wavelength Division Multiplexing) A method of transmitting many connections parallel over one fiber optic line. Transmission works over different wavelengths (colors) on the same fiber, which are very close together on DWDM. Because of this, highly precise and temperature stabilized laser transmitters must be used. On the other hand, when using DWDM a distance of several 100 km can be covered. By now, DWDM is available with up to 128 colors.
A method of multiplying the capacity of an optical fiber by simultaneously operating at more than one wavelength.
a device for simultaneously transmitting a set of discrete information channels over a single fiber optic transmission line
Dense Wavelength Division Multiplexing. DWDM works by combining and transmitting multiple signals simultaneously at different wavelengths on the same fiber. In effect, one fiber is transformed into multiple virtual fibers. So, if you were to multiplex eight OC-48 signals into one fiber, you would increase the carrying capacity of that fiber from 2.5 Gb/s to 20 Gb/s. Currently, because of DWDM, single fibers have been able to transmit data at speeds up to 400Gb/s.
Dense wavelength division multiplexing. A high-speed version of wavelength division multiplexing. (See WDM)
Dense Wavelength Division Multiplexing. A WDM technology that multiplexes more wavelengths in a fiber optic strand thus the wavelengths are closely spaced. DWDM and WDM are often used interchangeably since today most WDM products gets more dense. Also see WDM and fiber optic. Contrast with CWDM.
Dense Wavelength Division Multiplexing. A technology that uses multiple lasers and transmits several wavelengths of light simultaneously over a single optical fibre. Such systems can provide more than a terabit per second of data transmission on one optical fibre.
Dense Wave Division Multiplexing, a technique for passing multiple data streams along an optical fibre cable using different wavelengths as carriers.
Dense Wavelength Division Multiplexing. DWDM is a technology that provides almost unlimited bandwidth on optical fibers.
Dense Wavelength Division Multiplexing. An even more powerful and efficient type of WDM capable of increasing the capacity of a fiber strand even further. It is currently the preferred method for fiber transmission as it greatly reduces the amount of fiber required by a network. See also WDM.
Dense Wave Division Multiplexing. A technology that increases the information carrying capacity of existing fiber optic infrastructure by transmitting and receiving data on different light wavelengths. Many of these wavelengths can be combined on a single strand of fiber.
Dense Wavelength Division Multiplexing. Technology that puts data from different sources together on an optical fiber, with each signal carried on its own separate light wavelength.
Dense wavelength-division multiplexing. A method of passively combining multiple wavelengths by color. Equipment that combines only a few such wavelengths is known as WDM or CWDM (coarse WDM). The most widely used transponders, however, utilize tens or hundreds of channels in tightly spaced grids, hence the name DWDM.
Dense Wavelength Division Multiplexing involving high channel counts.
Dense Wave Division Multiplexing, the technology by which the frequencies of light carried on a single optical fibre are subdivided into discrete wavelengths allowing for the greater transmission of data. To top
Dense Wavelength Division Multiplexing An optical technology used to increase bandwidth over existing fiber. DWDM combines and transmits multiple signals simultaneously at different wavelengths on the same fiber.
A technology that puts data from different sources together on an optical fiber, with each signal carried at the same time on its own separate light wavelength. Using DWDM, up to 80 separate wavelengths or channels of data can be multiplexed into a lightstream transmitted on a single optical fiber. Each channel carries a time division multiplexed (TDM) signal. In a system with each channel carrying 2.5 Gbps (billion bits per second), up to 200 billion bits can be delivered a second by the optical fiber.
Dense Wave Division Multiplexing. This technology exponentially increases the capacity of fiber-optic networks, by transmitting multiple data streams simultaneously, using different colors of light on each fiber strand. Previously, only a few different lightwaves were transmitted across fiber lines; the latest technologies enable 16 different channels, with future developments likely to increase that number.
Dense Wavelength Division Multiplexing - an optical technology used to increase bandwidth over existing fiber optic backbones.
dense-wavelength-division multiplexing; Dense Wavelength Division Multiplexers have become one of the hottest commodity items in light-wave applications today. The multiple-channel WDM exploded on the scene in 1996 in commercial form and should be well entrenched in fiber-optic systems by the end of 1997. Sixteen-channel components and systems are headed for wide use in the form of so-called dense WDMs (DWDMs). Up to 32 channels will follow as users move to secure spacing on the ITUs 200-GHz, 1.6-nm and 100-GHz, 0.8-nm grids at the nominal 1,550-nm.
Dense Wave-length Division Multiplexing
Dense Wavelength Division Multiplexing is a fiber-optic transmission technique that employs different light wavelengths to transmit data on the same optical signal. Because each type of data is transmitted on a different wavelength, the receiver can filter out wavelengths in order to isolate the desired signal.
Dense wavelength division multiplexing. Multiplexing of signals by transmitting them at different wavelengths through the same fiber.
Dense Wave Division Multiplexing. A method for combining multiple fiber optic signals of different wavelengths onto a single strand of cable in a much smaller wavelength spectrum than CWDM. Dense Wave Division Multiplexing allows up to 80 separate channels of data to be carried over a single optical cable using different wavelengths for each channel
(Dense Wave Division Multiplexing) Frequencies of light carried on an optical fibre are subdivided into individual wavelengths allowing for more efficient usage of each fibre pair.
Dense Wavelength Division Multiplexer. A technique used to transmit several independent bit streams over a single fiber link. Go To: Term Definition
dense wavelength division multiplexing. Optical transmission of multiple signals over closely spaced wavelengths in the 1550 nm region. (Wavelength spacings are usually 100 GHz or 200 GHz, which corresponds to 0.8 nm or 1.6 nm.)
Dense Wavelength Division Multiplexing. A technique which employs more than one light source and detector operating at different wavelengths and simultaneously transmits optical signals through the same fiber while message integrity of each signal is preserved.
Dense WDM = Dense Wavelength-Division Multiplexing Wikipedia
Dense Wavelength Division Multiplexing. Key enabling technology that increases bandwidth capacity by combining beams of light of slightly different wavelengths through a single fiber, with each fiber carrying its own stream of information.
Dense Wave Division Multiplexing. A technology that provides in fiber the equivalent of frequency division multiplexing, in metallic wire. Separate parallel channels are transmitted on a single fiber, with one wavelength for each channel. Current products enable 16 channels of 2.5Gb each for a total of 50Gb per fiber. DWDM can operate over existing single-mode fiber, and therefore reduce upgrade costs.
Dense wavelength division multiplexing. a technology that increases the number of wavelengths on a single beam of light. Using DWDM, more than 75 separate wavelengths can be multiplexed into a lightwave transmitted on a single optical fiber.
See dense wavelength-division multiplexing. Numbers
An optical technology used to increase bandwidth over existing fiber-optic backbones. DWDM works by combining and transmitting multiple signals simultaneously at different wavelengths on the same fiber. In effect, one fiber is transformed into multiple virtual fibers.
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