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Digital optical cables transmit sound signals by using fiber-optic technology, or strands of glass that transmit digital information to receivers. Digital optical ports are found on some music players, but are more common in comprehensive systems used for entertainment or gaming. Digital optical connections are generally considered... more »
Photonics is the ability to send and receive information by running laser light projections through tiny glass tubes, or fibers. The laser beam is sent in a series of pulses, with each pulse representing a piece of information. These transmissions are sent in a language that a computer, sensor or circuit can understand. Once received,... more »
In terms of subscribers and revenue, Cello Partnership, doing business as Verizon Wireless, is the largest wireless telecommunications company in the United States. Some of the significant achievements of Verizon Wireless include building the United States' first wide-area broadband wireless network and providing the country with the... more »
For the setup, the cable company has lines of fiber optics run through the ground that are then divided out to sub stations. From these sub stations they connect a main hub outside each home or apartment building. From there the cable is fed from the main hub outside the home in through the wall into the home. The coaxial cable is... more »
The term laser is an acronym for Light Amplification by Stimulated Emission of Radiation. A laser beam is a powerful, narrow, monochromatic and directional beam of electromagnetic radiation. Often, these beams are within the visible spectrum of light. A laser device excites the atoms in a lasing medium. The electrons of these atoms... more »
Fiber optic cables are cables composed of fibers and other materials held together in jackets designed to support them. There are different types... more »
Fiber optics are plastic tubing filled with thin glass filaments which carry data in the form of light across a network. The basic of fiber optics... more »
When setting up a shot, the director of photography may ask the someone to check the shot. This is most likely when the diopter will need to be... more »
The development of fiber optics has greatly increased our ability to transmit electronic information. Whether it's your telephone system or cable... more »
Hollow glass tubes, which typically are made from silica, are put onto a lathe, which slowly rotates. more »
An optical fiber (or fibre) is a glass or plastic fiber that carries light along its length. Fiber optics is the overlap of applied science and engineering concerned with the design and application of optical fibers. Optical fibers are widely used in fiber-optic communications, which permits transmission over longer distances and at higher bandwidths (data rates) than other forms of communications. Fibers are used instead of metal wires because signals travel along them with less loss, and they are also immune to electromagnetic interference. Fibers are also used for illumination, and are wrapped in bundles so they can be used to carry images, thus allowing viewing in tight spaces. Specially designed fibers are used for a variety of other applications, including sensors and fiber lasers.
Light is kept in the core of the optical fiber by total internal reflection. This causes the fiber to act as a waveguide. Fibers which support many propagation paths or transverse modes are called multi-mode fibers (MMF), while those which can only support a single mode are called single-mode fibers (SMF). Multi-mode fibers generally have a larger core diameter, and are used for short-distance communication links and for applications where high power must be transmitted. Single-mode fibers are used for most communication links longer than .
Joining lengths of optical fiber is more complex than joining electrical wire or cable. The ends of the fibers must be carefully cleaved, and then spliced together either mechanically or by fusing them together with an electric arc. Special connectors are used to make removable connections.
History
Fiber optics, though used extensively in the modern world, is a fairly simple and old technology. Guiding of light by refraction, the principle that makes fiber optics possible, was first demonstrated by Daniel Colladon and Jacques Babinet in Paris in the early 1840s. John Tyndall included a demonstration of it in his publ read more at » http://en.wikipedia.org/wiki/Optical+fiber
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