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· 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.
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∙ 10y ago
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What is the optical range of optical fiber?
40 GHz
How does an optical transmitter sends signals to the optical fiber?
Usually, there is a laser diode that is optically coupled to the fiber.
Is cross talk is possible in optical fiber?
One of the advantages of optical fiber is that it is NOT susceptible to cross-talk.
Objective type question on optical fiber?
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? "
What are the disadvantages of optical fiber communication system?
fiber optic cables are sensitive to design irregularity and and their cost is high.
What are the disadvantages of using optical fiber instead of copper wire for communications?
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?
Describe refraction and reflection with respect to Fiber Optical Cable?
Is optical fiber spherical?
no, its cylindrical
What is fiber optic sensor?
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.
Is fiber obtics a good conductor of electricity?
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.
Is optical fiber unidirectional?
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.
Optical communication- may2008 question paper?
what is fiber optics what is fiber optics
