optical fiber is a thin cylindrical fiber made from glass or plastic, that is as small as one tenth of the human hair. A standard telecom optical fiber is composed of three cylindrical layers, counted from the inside out the fiber core (diameter 8x10um) as well as the cladding (diameter 130um) along with buffer coating (diameter 9000um).Fiber core and cladding are made from glass or silica. The fiber core...