18-10-2010, 11:48 AM
Optical Fibers.ppt (Size: 392.5 KB / Downloads: 214)
optical fiber communication
By: Bibek Thapa
BscIT (IInd sem)
LBEF,SMU
Maitidevi,Kathmandu
Introduction
Core – thin glass center of the fiber where light travels.
Cladding – outer optical material surrounding the core
Buffer Coating – plastic
coating that protects
the fiber.
Type of Fibers
Optical fibers come in two types:
Single-mode fibers – used to transmit one signal per fiber (used in telephone and cable TV).
Multi-mode fibers – used to transmit many signals per fiber (used in computer networks).