Optical fiber is a long thin cylindrical fiber made from glass or plasticthat is that is as small as one tenth of the human hair. The standard optical fiber in telecom is made up of three layers that are counted from the inside out: fiber core (diameter 8~10um) as well as the cladding (diameter 130um) along with buffer coating (diameter 90um).The fiber core and cladding are composed of silica or glass....
