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Fiber optics

            Some of the important features of the fiber optics that we are interested are discussed below. Now a days we are using copper wires as they are the most cost effective and reliable interconnect in parallel machines. However as machines grow more powerful, wire density becomes critical making fiber possible alternatives because of their small wire size. Fiber optics are used mainly to use effectively its high bandwidth. On a single fiber lots of information/data can be transmitted concurrently and in parallel. Over 1000 high bandwidth (100-200 Mb/s) independent channels or busses can be supported on a single optical fiber. Furthermore multiple buses can co-exist on a single fiber. Fiber links allow a number of high speed serial links to replace a large number of electrical lines. The use of fiber is thus space saving. The input and output properties of the fiber are very important. They give us an idea about the nature and working of fiber materials. The fiber cables can transport light signals from one place to another place just similar to the way the metallic conductors transport electric signals. The fiber cables guide light around bends and they are able to carry light for very long distances with very little attenuation. But the transmission characteristics of the fiber are not complete and completely efficient. The fiber cables introduce loss of light and smearing of the modulation imposed on the light signals to represent information. These affects of delay distortion and attenuation limit the distances that can be spanned without electro-optic repeaters and thus limit the information rates which can be carried over long distances as well. Make of fiber optic cables. Turns out they can be made of just glass, glass plus polymers, or just polymers ("plastic optical fibers" -POF-). The most basic optical fiber consist of: a) An inner cylinder with high refractive index, called the core.


Essays Related to Fiber optics

1. Fiber Optics

... laser diode (LD) or its lower-power cousin, the light-emitting diode (LED), had the potential to generate large amounts of light in a spot tiny enough to be useful for fiber optics. In 1957, Gordon Gould popularized the idea of using lasers when, as a graduate student at Columbia University, he described the laser as an intense light source. Shortly after, Charles Townes ... including the development of the ruby laser and the helium-neon laser in 1960. Semiconductor lasers were first realized in 1962; these lasers are the type most widely used in fiber optics today. The early work on fi...

  • Word Count: 1457
  • Approx Pages: 6
  • Grade Level: Undergraduate

2. The History of Fiber Optics

... into the new substance. The angle at which the light strikes the boundary decides how much light is reflected and how much is absorbed. Fiber optics makes use of special conditions, under which all the light encountering the surface between two materials is reflected, to reduce loss. A principle ... Neither van Heel nor Hopkins and Kapandy made bundles that could carry light far, but their work was still vital to the development of fiber optics. The crucial innovation was made by van Heel with help from American physicist Brian O"Brien. All earlier fibers were "bare", with total ... La...

  • Word Count: 1500
  • Approx Pages: 6
  • Grade Level: Undergraduate

3. Fiber Optics

... together are quadplex. Wires with more than four cables are also available. Some of the possible ones are groups of twelve, thirty-six, and forty-eight. Another important aspect of fiber optics is attenuation, which is decrease in power from one point to another. Attenuation is measured in dB/km and a 3.0 dB/km loss corresponds to about a 50% loss in 1 km. One ... life span of approximately thirty years; it is not effected by short circuits, power surges, or static electricity; and is easily installed and upgraded. One of the few disadvantages to fiber optics is that to get an optical s...

  • Word Count: 1490
  • Approx Pages: 6
  • Grade Level: High School

4. Fiber Optics

... was millimeter-wave systems. In which hollow pipes served as wave guides to circumvent poor atmosphere transmission at tens of gigahertz, where wavelength were in the millimeters. Fiber optics is currenty the best long distance communications method because it provides much faster data transfer speeds when compared to the traditional interconnection media such as copper wire ... . Fiber optics has become a very important part of modern day communication. Over the next few years, fiber optics will continue to replace copper as the communications standard. With the development of the 20 dB...

  • Word Count: 864
  • Approx Pages: 3
  • Grade Level: Undergraduate

5. Fiber optics

... was millimeter-wave systems. In which hollow pipes served as wave guides to circumvent poor atmosphere transmission at tens of gigahertz, where wavelength were in the millimeters. Fiber optics is currenty the best long distance communications method because it provides much faster data transfer speeds when compared to the traditional interconnection media such as copper wire ... . Fiber optics has become a very important part of modern day communication. Over the next few years, fiber optics will continue to replace copper as the communications standard. With the development of the 20 dB...

  • Word Count: 893
  • Approx Pages: 4
  • Grade Level: Undergraduate

6. Fiber Optic

Fiber optics is a kind of optics dealing with the movement of light through fibers or thin rods of glass. If light is put at one end of a fiber, it can move through the fiber with very low loss of intensity, even if the fiber is curved. The simplest use of optical fibers is the moving of light to places hard to reach, for example, inside a dentists drill ... cutting and drilling. One growing use of optical fibers is in communication. Because the information-carrying capacity of a signal increases with frequency, the use of laser light makes many advantages. Fiber-optic laser systems are being...

  • Word Count: 256
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7. Introduction To Dense Wave Division Multiplexing (DWDM)

... and geographical topography (ocean versus land) where the cable was laid. To accommodate future expansion of the telecommunications network, multiple fiber optic strands were installed because it did not cost much more to deploy multiple fiber optics relative to the cost of the fiber optic cable itself. They anticipated the growth of the telecommunications network for years to come, but they did not consider ... OTDM networks. One is a broadcast network and the other is a switch-based network. Optical signals can be delayed by using several methods. One is using an optical "roundtable"....

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  • Has Bibliography

8. Point A to Point B

... of information get from one point to the other? Someone has to establish a route between points, which is what I do. I run copper cable or fiber optics between telecommunication rooms in order for the computer network to "talk." The first step is to determine which media you need to use. What is the distance ... codes you need to abide by so that proper communication will take place. If your distance is over three hundred feet you will need to utilize fiber optics. You can calculate the distance with a measuring wheel or other devise in order to determine an accurate distance. Add an addi...

  • Word Count: 638
  • Approx Pages: 3
  • Grade Level: High School

9. History

... electricity. This type of transmission was rather ineffective due to outside interferences such as clouds or trees that disrupted transport but it is recognized as the progenitor of the modern fiber optics. The rise of the innovation reached a critical mass in 1950's and the young technology slowly emerged into the daily world. In 1956, Narinder Kapany who took the important role ... . The invention of the laser in the 1960's developed by Theodore Maiman embarked a widespread interest in optical systems for data communications. It prompted researchers to study the potential of fiber opt...

  • Word Count: 788
  • Approx Pages: 3
  • Grade Level: Undergraduate

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