Fiber optics Fiber optics The 1000Base-X uses fibre-optic - both 1000Base-SX and 1000Base-LX use two pairs of fibre-optic. 1000Base-SX uses short wave laser, whileas the 1000Base-LX uses long wave laser. ...more on Wikipedia about "1000BASE-X"
Amphenol Corporation is one of the world's leading producers of electronic and fiber optic connectors, cable and interconnect systems. ...more on Wikipedia about "Amphenol"
An Automatically Switched Optical Network (ASON) is a network based on a technology enabling the automatic delivery of transport services; specifically an ASON can deliver not only leased lines connections but also other transport services such as soft permanent and switched optical connections. A switched connection is set up and released from the management system, which uses network generated signalling and routing protocols to establish the connection. On the other hand a switched connection is set up and released by the customer on demand, still using signalling and routing protocols. In an ASON each network node should be equipped with a Control Plane. The Control Plane sets up and releases connections and may restore a connection in case of a failure. ITU-T Recommendation G.8080 describes the set of control plane components that are used to manipulate transport network resources in order to provide such functionality of setting up, maintaining and releasing connections. ...more on Wikipedia about "ASON"
In a fiber optic cable, a buffer is one type of component used to encapsulate one or more optical fibers for the purpose of providing such functions as mechanical isolation, protection from physical damage and fiber identification. ...more on Wikipedia about "Buffer (optical fiber)"
Cable jetting is a technique to install cables in ducts ** . It is commonly used to install cables with optical fibers in underground polyethylene ducts and is an alternative to pulling. ...more on Wikipedia about "Cable jetting"
In fiber optics, the cutoff wavelength for a mode in an optical fiber or waveguide is the longest wavelength for which that mode can propagate. For single-mode optical fiber, the cutoff wavelength is approximately the wavelength at which the normalized frequency is equal to 2.405. ...more on Wikipedia about "Cutoff wavelength"
In telecommunications, dark fiber or unlit fiber (or fibre) is the name given to fiber optic cables which have yet to be used. They are hence not yet connected to any device, and are only there for future usage. ...more on Wikipedia about "Dark fiber"
In guided wave optics, a distributed Bragg reflector (DBR) is a structure formed from multiple layers of alternating materials with varying refractive index, or by periodic variation of some characteristic (such as height) of a dielectric wave guide, resulting in periodic variation in the effective refractive index in the guide. Each layer boundary causes a partial reflection of an optical wave, and for waves with optical wavelength such that the many reflections combine with constructive interference, a high quality reflector is formed. ...more on Wikipedia about "Distributed Bragg reflector"
For an optical fiber, the effective mode volume is the square of the product of the diameter of the near-field pattern and the sine of the radiation angle of the far-field pattern. The diameter of the near-field radiation pattern is defined here as the full width at half maximum and the radiation angle at half maximum radiant intensity. Effective mode volume is proportional to the breadth of the relative distribution of power amongst the modes in a multimode fiber. It is not truly a spatial volume but rather an "optical volume" equal to the product of area and solid angle. The power divided by the effective mode volume is proportional to the radiance of the light emitted by the fiber. ...more on Wikipedia about "Effective mode volume"
Equilibrium length For a specific excitation condition, the length of multimode optical fiber necessary to attain equilibrium mode distribution. Equilibrium length is sometimes used to refer to the longest such length, as would result from a worst-case, but undefined, excitation. Synonyms equilibrium coupling length, equilibrium mode distribution length. ...more on Wikipedia about "Equilibrium length"
Equilibrium mode distribution of light travelling in optical waveguide refers to the distribution of light as it is travelling in the medium without any disturbance or leakage/gain. ...more on Wikipedia about "Equilibrium mode distribution"
A fiberscope is a flexible fiber optic bundle with an eyepiece at one end, and a lens at the other. It is used for inspection work, often to examine small components in tightly packed equipment, when the inspector cannot easily access the part requiring inspection. ...more on Wikipedia about "Fiberscope"
FiOS (Fiber Optic Services, though the carrier denies this is the source of the acronym in published news stories) is a fiber to the premises (FTTP) telecommunications service offered in the United States by Verizon. Verizon has attracted consumer and media attention in the area of broadband Internet access, as the first major U.S. carrier to offer such a service. Verizon is also developing a television service with its fiber optic lines, and is expected to become a major competition of local cable television companies over the next 10 years. It will compete with current "Triple Play" offers, where the local cable company offers broadband Internet access, digital cable, and VoIP telephone service. FiOS started as a pilot program in Keller, Texas, but is now expanding to other places. ...more on Wikipedia about "FiOS"
In telecommunications, a graded-index or gradient-index fiber is an optical fiber whose core has a refractive index that decreases with increasing radial distance from the fiber axis (the imaginary central axis running down the length of the fiber). ...more on Wikipedia about "Graded-index fiber"
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Gradient index optics is the branch of optics covering optical effects produced by a gradual variation of the refractive index of a material. ...more on Wikipedia about "Gradient index optics"
A guided ray (also bound ray or trapped ray) is a ray of light in a multimode optical fiber, which is confined by the core. For step index fiber, light entering the fiber will be guided if it falls within the acceptance cone of the fiber, i.e. if it makes an angle with the fiber axis that is less than the acceptance angle, ...more on Wikipedia about "Guided ray"
In telecommunication, an index-matching material is a substance, usually a liquid, cement (adhesive), or gel, which has an index of refraction that closely approximates that of an optical fiber, and is used to reduce Fresnel reflection at the fiber endface. (FAA) ...more on Wikipedia about "Index-matching material"
In fiber optic telecommunications, the launch angle has the following meanings: ...more on Wikipedia about "Launch angle"
In telecommunication, launch numerical aperture (LNA) is the numerical aperture of an optical system used to couple (launch) power into an optical fiber. ...more on Wikipedia about "Launch numerical aperture"
A leaky mode or tunneling mode in an optical fiber or other waveguide is a mode having an electric field that decays monotonically for a finite distance in the transverse direction but becomes oscillatory everywhere beyond that finite distance. Such a mode gradually "leaks" out of the waveguide as it travels down it, producing attenuation even if the waveguide is perfect in every respect. In order for a leaky mode to be definable as a mode, the relative amplitude of the oscillatory part (the leakage rate) must be sufficiently small that the mode substantially maintains its shape as it decays. ...more on Wikipedia about "Leaky mode"
If the scientist begins with Maxwell's Equations, converts to cylindrical coordinates, and uses the boundary conditions for a fiber optic cable while including birefringence as an effect, he would arrive at the coupled nonlinear Schrödinger equations. He could then employ the Inverse Scattering Transform, a procedure analogous to the Fourier Transform and Laplace Transform, to obtain the Manakov system. The most general form of the Manakov system is as follows: ...more on Wikipedia about "Manakov system" It's time to think about http://www.shortopedia.com. shortopedia
A mechanical splice is a junction of two or more optical fibers that are aligned and held in place by a self-contained assembly (usually the size of a large carpenter's nail). The fibers aren't permanently joined, just precisely held together so that light can pass from one to another. ...more on Wikipedia about "Mechanical splice"
Microducts are small ducts for the installation of small microduct fibre optic cables. They have a size ranging from typically 3 to 16 mm and are installed as bundles in larger ducts. ...more on Wikipedia about "Microducts"
In fiber optics, mode volume is the number of bound modes that an optical fiber is capable of supporting. ...more on Wikipedia about "Mode volume"
A fiber optics connector type. The MT-RJ uses a form factor and latch like the RJ-45 connectors, supports full duplex, has lower cost than ST or SC connectors, and is easier to terminate and install than ST or SC. Further, its smaller size allows twice the port density on a face plate than ST or SC connectors. ...more on Wikipedia about "MT-RJ"
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