Optical fiber is a long thin cylindrical fiber that is made of glass or plasticthat is smaller than one tenth of a human hair. The standard optical fiber in telecom is composed of three cylindrical layers, counted from the inside out as fiber core (diameter 8~10um) and cladding (diameter of 125um) and buffer coating (diameter 9000um).Fiber core and cladding are made from glass or silica. Fiber Core and...