(general optics) Optical fibers provide the transportation of optical signals or/and optical power over a certain distance Most fibers for telecommunication purpose are made of quartz, due to the low losses of downto 0 1dB/km, while some short-distance fibers have cheap and easy to handle plasics as basic material In every case, the guidance of light is provided by total reflection inside the fiber core, wich has a slighly higher refractive index than the rest of the fiber(cladding) An outer plastic coating protects the fiber from mechanical or chemical influences Standard telecommunication fibers have an outer cladding diameter of 0 125mm and core diameters of 9 microns (9/125 monomode fiber) or 50 microns (50/125 multimode fiber) For long distance telecommunications only monomode fibers are used, due to the absence of modal dispersion Sources to get more info
An extremely thin, flexible thread of pure glass, able to carry one thousand times the information possible with traditional copper wire
Optical fiber cables consist of thin filaments of glass (or other transparent materials), which can carry beams of light A laser transmitter encodes frequency signals into pulses of light and sends them down the optical fiber to a receiver, which translates the light signals back into frequencies Less susceptible to noise and interference than other kinds of cables, optical fibers can transmit data greater distances without amplification But because the glass filaments are fragile, optical fiber must be run underground rather than overhead on telephone poles
A filament of transparent dielectric material, usually glass or plastic, and usually circular in cross section, that guides light (188) Note 1: An optical fiber usually has a cylindrical core surrounded by, and in intimate contact with, a cladding of similar geometry Note 2: The refractive index of the core must be slightly higher than that of the cladding for the light to be guided by the fiber Synonym lightguide
a very thin fiber made of glass that functions as a waveguide for light; used in bundles to transmit images
A flexible optically transparent fiber, usually made of glass or plastic, through which light can be transmitted by successive internal reflections
Filament of quartz of other optical material capable of transmitting light along its conformation and emitting it at the end
Optical fiber (or "fiber optic") is a transmission medium associated with the transmission of information as light pulses along a glass or plastic wire or fiber Optical fiber carries a lot more information than copper wire and is usually not subject to electromagnetic interference and the need to retransmit signals Most of Verizon's inter-office telephone lines are now of optical fiber
A glass or plastic fiber that has the ability to guide light along its axis The three parts of an optical fiber are the core, the cladding, and the coating or buffer
A thin filament of glass Optical waveguide consisting of cladding and a core capable of carrying information in the form of light
A transparent fiber, usually of glass or plastic, that can transmit light down its length by means of total internal reflection
Medium that carries digital data signals in the form of modulated pulses of light An optical fiber consists of an extremely thin cylinder of glass, called the core, surrounded by a concentric layer of glass, known as the cladding
Long strands of glass, thinner than a human hair, which propagate a lightwave signal for use in broadband communications Synonym for fiber, lightguide
Filament of quartz or other optical material capable of transmitting light along its conformation and emitting it at the end
A glass or plastic fiber surrounded by a material with a lower index of refraction Optical fibers transmit light from one end to the other by internal reflection
Optical fibers are light guides for electromagnetic waves in the infrared and visible light spectrum composed of concentric cylinders made of dielectric materials with different indices of refraction (i e , velocity of propagation normalized to the velocity of light in free space) At the center is a core comprising the glass or plastic strand or fiber in which a light wave travels A low index of refraction clad surrounds the core and is itself enclosed in a light-absorbing jacket that prevents interference among multi-fiber cables Multi-fiber cable can be purchased with between 2 and 136 fibers
A thin glass or plastic filament used for the transmission of information via light signals The signal carrying part of a fiber optic cable
provides a high bandwidth alternative to copper wire for transmitting data Information is translated in light pulses which can be transmitted over optical fibre with little to no signal loss A number of optical fibre technologies exist cheaper technologies provide high bandwidth over relatively short distances suitable for LANs, campus networks and so called Metropolitan Area Networks (MANs) while more expensive technologies are used by telecom network providers, over extremely long distances
op·ti·cal fi·bre optical fibres in AM, use optical fiber An optical fibre is a very thin thread of glass inside a protective coating. Optical fibres are used to carry information in the form of light. optical fiber a long thin thread of glass or plastic along which information can be sent through a phone or computer system, using light
a strand of glass or silica used as a cable for telecommunications purposes The data it sends is read in terms of pulses of light Optical fibres offer almost unlimited Bandwidth and thus high data rates
Optical fiber cables consist of thin filaments of glass (or other transparent materials), which can carry beams of light A laser transmitter encodes frequency signals into pulses of light and sends them down the optical fiber to a receiver, which translates the light signals back into frequencies Less susceptible to noise and interference than other kinds of cables, optical fibers can transmit data greater distances without amplification But because the glass filaments are fragile, optical fiber must be run underground rather than overhead on telephone poles
Cable made of glass fibres through which signals are transmitted as pulses of light It is a broadband medium that can easily provide capacity for a large number of channels
Contrary to popular opinion, optical fibre is not always made of glass They can be made from special kinds of plastic In any case, the fibres are designed so that a beam of light introduced at one end stays within the tube until it exits the other end The advantage here, of course, is that the data is carried along the fibre at the speed of light
Thin cylinder of glass or sometimes plastic, no thicker than a human hair, that light is able to be guided through They can be used to transmit information from one place to another
A glass thread that acts as a guide for lightwaves Fibres used in telecommunications usually have a cladding of glass of a lower refractive index In a communication system, several fibres are made up into a cable
A strand of hi-tech glass that carries signals in the form of laser light pulses An optical fibre pair can carry many thousands of telephone conversations simultaneously, or a mix of video and voice An optical fibre cable can contain hundreds of fibres
A method of guiding light over long distances with very little reduction on strength (attenuation or loss) A central core of high-refractive index material - usually very pure glass - is covered with a cladding of lower refractive index material Modern fibres have loss in the order of 0 25 dB/km, so 1 km of fibre has less loss than a pair of ordinary spectacles or reading glasses