Through fibre optics, many high date rate protocols such as frame relay, SMDS and ATM have been made possible. As a result, several features of this technology have made fibre channels particularly appropriate for large scale and high demand storage systems. One such feature of the fibre optics is virtually infinite bandwidth over other medium such as copper. Transmissions are carried inform of light, and a fibre optic consists of a glass silica inner core through which light is guided.
The core is on the immediate outside covered with a material with a reflective index slightly less than that of the core, a concept called cladding. The reflective index of the cladding requires only to be roughly 1% less than that of the core in order to achieve the total internal reflection needed to confine the light to the core (MercuryCommunications, 2007). A fibre optic cable appears as shown. Fig. 1 Source: MercuryCommunications In addition, light signals travelling in a fibre optic are immune to any Electromagnetic interference (EMI) as well as radio frequency interference (RFI).
Further, other disturbances such as lightning and high voltage interferences are equally eliminated. In applications where safe operations free from interference is necessary, fibre optics form the best transmission mode. This desirable characteristic makes fibre optics the medium choice in industrial and biomedical applications. Low attenuation coupled with superior signal integrity found in optical systems often allow much longer signal transmissions through fibre optic cables. While in copper transmissions well over 1.
2miles require an inline signal repeater, optical systems could go over 62miles without active or passive processing. Lastly, it bears noting that the modern day applications require an ever increasing amount of bandwidth while space constraints of their end users are a factor to consider. As a consequence, the relatively small diameters and the light weight properties of optical cables make them practical, viable and saves conduit space in their end user environment (NovaStars, n.
d). References MercuryCommunications. (2007). Fibre Optic Technologies. Retrieved July 12, 2010, from http://www. gare. co. uk/technology_watch/fibre. htm NovaStars. (n. d). The Benefits of Fiber Optic Technology. Retrieved July 12, 2010, from http://www. novastars. com/optics/optic-benefit. htm Oliver, B. (2010). Advantages of Fiber Optics. Retrieved July 12, 2010, from http://ezinearticles. com/? Advantages-of-Fiber-Optics&id=1244542