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kimmy510
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In optic fibers the how do v transmitt the information? will not there be interference of light as different wavelength of light travel in core?
kimmy510 said:In optic fibers the how do v transmitt the information? will not there be interference of light as different wavelength of light travel in core?
LostConjugate said:The speed that light travels is independent of the wavelength. So the signal at any point in the cable is in the same state, or modulation, as it was at transmission.
berkeman said:Not quite -- dispersion can be a design issue in multi-mode fibers:
http://en.wikipedia.org/wiki/Fiber_optics
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Optic fiber communication is a method of transmitting information from one place to another by sending light signals through thin, flexible glass or plastic fibers. These fibers are designed to carry a large amount of data over long distances at high speeds.
Optic fiber communication works by converting electrical signals into light signals that are then sent through the fiber optic cables. The light signals travel through the fiber by constantly reflecting off the inner walls due to the principle of total internal reflection. At the receiving end, the light is converted back into electrical signals for the data to be processed.
There are several advantages of using optic fiber communication, including high transmission speeds, low attenuation (signal loss), and immunity to electromagnetic interference. Optic fibers are also thinner and lighter than traditional copper wires, making them easier to install and maintain. They also have a longer lifespan and can carry a larger amount of data compared to copper wires.
The main components of an optic fiber communication system are the transmitter, fiber optic cable, and receiver. The transmitter is responsible for converting electrical signals into light signals, which are then sent through the fiber optic cable. The receiver then converts the light signals back into electrical signals for the data to be processed.
There are three main types of optic fibers: single-mode, multimode, and plastic fiber. Single-mode fibers have a small core and are used for long-distance communication, while multimode fibers have a larger core and are suitable for shorter distances. Plastic fibers are less expensive and are often used for short-distance and consumer applications.