Fiber optic communication has become necessary have to most of the big multinational companies and government agencies. Heavy investments have taken place in regards to this particular type of communication. Form the developed countries to the developing countries fiber optic communication has become the preferred means of data transmission. The following report will look at Fiber optics and fiber optic communications critically. The history of the fiber optics will be liked into as well as the basic fiber optic communication system. There are different types of fiber optics and they too will be examined below.
Introduction
Fiber Optic communication can be defined as a communication technology that is designed to make use of light to carry and transmit data and information. In fiber optic communication, the fiber optic cable is defined as the part transmits the light from one point to another point. The fiber optic cable is also referred to as a ‘light-pipe'. Its name easilydescribes its function as the fiber optic cableis designed in such a way that it allows light to go through its surface, in the process, extremely little loss is experienced. High quality communication cable, in most cases, compromises of glass to be precise, silicon dioxide. Glass is usually easily broken and brittle. However, when made thinner even thinner than a normal human hair, it is now becomes extremely strong and flexible. Optic fiber is not just any other normal light. Fiber optic as a light is seen to be transparent, at a very precise wavelength of light that is in terms of color. Usually, fiber optic, at 1550 nm, is extremely transparent. If it were visible to the human eye it would be viewed as a reddish color.
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...layers have longitudinal fibers. These fiber endings are called fimbriae.(The Editors of Encyclopedia Britannica, 2014)
The true benefits of fiber optics become apparent, since it is not affected by electro-magnetic interference (EMI).
...The Autobiography of Benjamin Franklin. Leonard W. Labaree ed. New Haven: Yale University Press, 1964.
1.Dr. Leonard Eron, University of Illinois at Chicago, Testimony before the Senate Committee on Commerce, Science and Transportation, Subcommittee on Communications, June 12, 1995.
This is the principle in fibre optics of which long glass fibres of very small
The changes in the technological can influence many part of societies. When the AT&T Company introduce their new product and services which is wireless and wire line technology will effects occur primarily through the new products, processes, and materials. Thus, changes in technological also often can achieve higher market share and earn higher return because, newly emerging technology from AT&T could derive competitive advantages. For example, internet today becoming more remarkable capability to provide information easily, quickly, effectively, and also can create more value for customer in the future and to anticipate future trends.
Most networks transfer data in two directions and are known as duplex communications links. Duplex links are classified as either full duplex or half duplex (also known as two ways alternate), depending upon whether both local and remote nodes may simultaneously transmit, or whether one must wait for the other to finish before starting transmission.
The use of light as a communication media used in China Great Wall distance more than 7300 km with in 1 hour to sent signal from one tower to another. In the late 20th century optical communication took back in to the seat for its advantages over coaxial transport and other electrical communication system. In 1966, Kaw and Hockman proposed the idea of using optical fiber light wave communication and their prediction was data loss 20dB/km [12]. In late 1980s to 1990s, coherent detection communication systems were introduced to enhance the transmission system. However, optical system needs still regeneration over long distance. By early 1990s, the system channel capacity boosted and reached to 10Gb/s but in 2003 it reached up to 40Gb/s via support WDM system. Recently, some experiments have done to transmit data 21.7 Tb/s though crossing the 10Tb/s per fiber barrier and it is new challenges for optical communication to innovate novel schemes of optical amplification, modulation technique or Fiber channel design.
...d material as the active medium. Substances made of crystals or glass are generally used. Semiconductor lasers, which use semiconductors, which are materials that conduct electricity but do not conduct as well as copper or iron for example which are true conductors. Gas lasers, which use a gas or mixture of gases in a tube as the active medium, and dye lasers use a dye as the active medium (O'Shea).
Unknown to many, Digital Signal Processing has a broader impact in economic, social, and global categories. In the economic view, digital signal processing generates income and has proved to successfully bring plenty of business for the future; it is where the future is heading. In social context, digital signal processing has enabled us to evolve (and continue to Evolve) with communications to virtually any one in the world. It connects millions around the world, which brings us to the Global aspect. Digital signal processing is relevant due to the fact that it has become a necessity. A lot of people only think cellphones; little do they know digital signal processing is used in everyday life.
The refractor telescope is a telescope that uses lenses and refraction in order to magnify images.
Fiber optics is a new technology that uses rays of light instead of electricity to transmit information over optical fibers at very high speeds. The optical fibers are usually thin strands of glass that are combined into cables and used to send information and computer data in the form of pulses of light. The optical fibers provide much clearer transmission than conventional copper cable and satellite links. The world market for optical fiber continues to grow rapidly, with shipments increasing 14 percent from an estimated 7.0 million kilometers of fiber in 1990 to approximately 8.0 million in 1991. The demand for multimode fiber is predicted to continue to expand through the mid-1990s, with some market analysts indicating that 15 to 20 percent annual growth over the next three years is reasonable. Strong demand is expected for singlemode and multimode fiber to be used in cables for local area networks, telecommunications, cable television (CATV), and transoceanic fiber-optic systems.
Recently, the school of information science and Engineering College of positive news, a visible light transmission network signal inside the international leading edge communications LIFI successfully achieved in the laboratory. Researchers network signal to a 1W LED lamp bead, light and 4 computers Internet, off-line speed up 3.25G, real-time system average Internet access rates of up to 150M, one of the world's fastest "light Internet". Next month, 10 prototypes will be unveiled in 2013, Shanghai industry fair.
This report will describe the two forms of data communications in terms of the physical interfaces and modes of operation. It will describe the features of data communications equipment in relation to synchronous and asynchronous communication including modems, network terminating units and sending and receiving equipment.