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Date/Time Thumbnail Dimensions User Comment; current: 10:55, 12 July 2011: 1,035 × 321 (65 KB): Alex-engraver: Correct input pumping light to Snell's law: 09:38, 13 June 2011
In fiber-optic communication, a single-mode optical fiber (SMF), also known as fundamental- or mono-mode, [1] is an optical fiber designed to carry only a single mode of light - the transverse mode. Modes are the possible solutions of the Helmholtz equation for waves, which is obtained by combining Maxwell's equations and the boundary conditions.
These fiber optic coating layers are applied during the fiber draw, at speeds approaching 100 kilometers per hour (60 mph). Fiber optic coatings are applied using one of two methods: wet-on-dry and wet-on-wet. In wet-on-dry, the fiber passes through a primary coating application, which is then UV cured, then through the secondary coating ...
Fiber to the curb/cabinet (FTTC) is a telecommunications system based on fiber-optic cables run to a platform that serves several customers. Each of these customers has a connection to this platform via coaxial cable or twisted pair. Here "curb" is an abstraction and can just as easily mean a pole-mounted device or communications closet or a ...
The erbium-doped fiber amplifier (EDFA) is the most deployed fiber amplifier as its amplification window coincides with the third transmission window of silica-based optical fiber. The core of a silica fiber is doped with trivalent erbium ions (Er 3+ ) and can be efficiently pumped with a laser at or near wavelengths of 980 nm and 1480 nm, and ...
In telecommunications, an eye pattern, also known as an eye diagram, is an oscilloscope display in which a digital signal from a receiver is repetitively sampled and applied to the vertical input (y-axis), while the data rate is used to trigger the horizontal sweep (x-axis). It is so called because, for several types of coding, the pattern ...
This is the basic principle behind fiber optics in which light is guided along a high index glass core in a lower index glass cladding. The basic principles behind optical waveguides can be described using the concepts of geometrical or ray optics, as illustrated in the diagram.
Schematic diagram of cladding-pumped double-clad fiber laser Cross-section of circular DCF with offset core Cross-section of DCF with rectangular inner cladding [2]. In modern double-clad fibers for high power fiber amplifiers and lasers, the inner cladding has a higher refractive index than the outer cladding.