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What is Bandwidth and what's its relation with wavelength?
Bandwidth is the output of some light source, the width of the frequency range which can be transmitted by some element, the gain bandwidth of an optical amplifierthe width of the range of some other phenomenon. It's values may be specified in terms of frequency or wavelength.
What is electronic bottleneck?
Electronic bottleneck refers to the inability of electronic devices to process optical data at very high speeds. The term is used mostly when trying to justify the need to process ultra high speed data using all-optical devices without the need for optical-electrical-optical conversion.
What is the operation of opto-isolator?
It is only a LED and a light sensitive transistor in one package. The light from the LED activates the transistor so there is optical communication between the input and output but no electrical contact. This provides exceptional electrical isolation between the two circuits involved. An application that is most common is in a switched mode power supply, or a pulse width modulated power supply, if you prefer. These are exceptionally common in almost all contemporary AC adapters for TVs, monitors and other electronic devices.
How do you calculate spectral efficiency?
1.Find the Fourier Transform of the pulse used to transmit data over the channel. 2.Determine the bitrate of the signal by the modulation format (QPSK for example has 2bits/symbol so 1 symbol per second would equate to 2 bits/s) 3.The first null in the Fourier transform is the required bandwidth (~0.75 x bitrate in optical communications, depends on channel) 4. Divide bits/s by the required bandwidth to find the spectral efficiency.
Different between terminal loopback and facility loopback in optical fiber?
In telecommunications, facility refers to the transport network (see http://en.wikipedia.org/wiki/Telecommunications_facility). In an optical transport network, facility would refer to the optical fibre plant. Terminal refers to the end equipment that is communicating over the transport network (see http://en.wikipedia.org/wiki/Terminal_%28telecommunication%29). Thus, in the context of optical transport equipment, a terminal loopback sends data received from the end equipment back to the equipment. A facility loopback sends data received from the transport network back to the transport network.
What is Relationship between electrical and optical bandwidth for an optical fiber communication?
The electrical bandwidth refers to the frequency range that the electronic components in the communication system can handle, while optical bandwidth refers to the frequency range that the optical fiber can transmit. The relationship between the two bandwidths is important in ensuring that the data transmission is efficient and reliable. Matching the electrical and optical bandwidths helps to avoid signal degradation and distortion in the communication system.
What are the advantages of optical communications?
Optical fiber is immune to electrical noise, interference and distortion. The bandwidth or capacity of optical is far greater than electrical transmission.
What difference between copper cable and optical cable?
A copper cable transports electrical signals. An optical cable transports light signals.
Why optical fibers has large bandwidth?
Study the optical transmission property of glass, to learn more. also: http://en.wikipedia.org/wiki/Optical_fiber You might wish to refine the question to differentiate between optical bandwidth and data bandwidth. If a laser can be modulated and the beam directed through an optical fiber, then the data or the analog bandwidth is about equal to the modulation bandwidth capability of the laser in Hz per second.
Why bandwidth is more in optical communication?
Bandwidth of an optical fiber determines the data rate.
What is the relation between bandwidth and numerical aperture in optical communication?
when numerical aperture increases ,there will be greater lss and low bandwidth...jahi
What is the relationship between laser bandwidth and the efficiency of data transmission in optical communication systems?
The relationship between laser bandwidth and the efficiency of data transmission in optical communication systems is that a higher laser bandwidth allows for more data to be transmitted at a faster rate. This is because a wider bandwidth enables the laser to carry more information in the form of light signals, leading to increased data transmission efficiency.
What is the Difference between optical zoom and dynamic zoom?
ofcourse optical zoom..................
What is the difference between a mirage and an optical illusion?
All mirages are optical illusions but all optical illusions are not mirages.
What is the difference between and optical illusion and an illusion?
All mirages are optical illusions but all optical illusions are not mirages.
What is the difference between a dvd player and a optical dvd player?
The difference between optical and non optical is the way the drive in the DVD reads the disk. Optical is a better and more higher quality reader. So the picture is much better.
What is the difference between a optical microscope and a non- optical microscope?
light is must for optical microscope while is not necessary for nonn optical one
