Optical fibers are thin and flexible transparent glass pipes that carry light. They are used in fiber optic communication as they are superior to metal fibers because of their lower rate of data loss and immunity to magnetic disturbance. Two types of optic fibers, singlemode and multimode fibers, are used in fiber optic communication. Singlemode fibers (SMF) or monomode fibers can carry only a single ray of light, while multimode fibers can carry more than one light ray at a time.
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