· Installation/maintenance - It is a quite new technology. Installation and maintenance need knowledge that is not yet available everywhere.
· Unidirectional - Propagation of light is unidirectional. If we need bidirectional communication, two fibers are needed.
· Cost - More expensive than of other guided media.
Physical vibration will show up as signal noise..and difficult to splice.
40 GHz
Usually, there is a laser diode that is optically coupled to the fiber.
One of the advantages of optical fiber is that it is NOT susceptible to cross-talk.
An objective type of question on optical fiber is on that focuses on the integral part of fiber optic. A good question would be, " Why are optical fibers immune to EMI? "
fiber optic cables are sensitive to design irregularity and and their cost is high.
Optical fiber carries signals through light, and therefore at light speed, the fastest possible, and gets less hot. Copper wire transmits information using electricity, which although fast, is not nearly as fast as light. Fiber optics allows faster transmission of data.
Describe refraction and reflection with respect to Fiber Optical Cable?
no, its cylindrical
An optical fiber is a glass or plastic fiber that carries light along its length. Fiber optics is the overlap of applied science and engineering concerned with the design and application of optical fibers.
No. An optical fiber is a slim hair composed of glass. Glass is a fine insulator, and an optical fiber doesn't conduct electricity at all.
The optical fiber can be used both as unidirectional and bidirectional. The main application of optical fiber is in long-distance links, so there exists no need to employ them as unidirectional. For each direction different wavelengths are used to modulat the signals. At the same time many bidirectional signals can travel through the same optical fiber.
what is fiber optics what is fiber optics