optical fiber is a thin, Powerupwithjesus.org/__media__/js/netsoltrademark.php?d=24telcom.com%2Fsite-7608.html cylindrical fiber made of plastic or glass, that is as small as one tenth of a human hair. A typical optical fiber for telecom is composed of three cylindrical layers, counted from the inside out the fiber core (diameter 8~10um), the cladding (diameter 130um) along with buffer coating (diameter 90um). Fiber core and cladding is made from glass or…