What combination of fiber amplifier and how does it work?
| Added: 25-04-2005 Author: Colin Yao Category: Communications |
← Back | ↓ Related | Home → |
Basically what the combination of fiber amplifiers solve is the traditional distance problem as in communications systems, long distance as a trans-Atlantic link. If the eye signals travel through the fiber, the signal is weak in strength. Ukienda greater distance, the weaker the signal becomes too weak to be seen reliably.
Optical fiber communication system to solve this problem by using fiber amplifiers. A repeater or amplifier is inserted into the system at the point where the signal is weak, in order to increase the signal strength so it can become infected by other long fiber cable. Many Amplifiers or repeaters can be placed in series with the signal strength for the entire fiber link.
What is the difference between the repeater and amplifier fiber eye?
Traditionally, repeaters are used for electronic signal amplification eyes. A repeater is OPTO OPTO-electro-effects. Eye weak signal converted into electronic signals, electronic signals cleared, and then change the electronic signals to the transmitter signal Lightwave eyes. Lightwave transmitters that provide a combination of a stronger power than the signal in and thus enlarge it.
However, this is not comfortable and expensive process and that is why the combination has been replaced by a new technology fiber amplifier.
Fiber amplifier combined effect of the eye is clean. That does not change the combination of signals into an electronic signal at all. Basically, you can call the in-line laser. Strengthening and optical fiber amplifier can simultaneously several channels to their eyes because we each channel yaongoi into electronic signals separately.
Fiber amplifier eyes and how does it work?
Optical fiber amplifier is a doped optical fiber that rare-earth elements such as erbium or Praseodymium.
Erbium atoms or Praseodimium be pumped by high power light (pump laser) in a state of joy. But they are not stable in the excited state. While the eyes that must be passed though the signal fiber reinforced, fuel their excitement erbium atoms. Will of erbium atoms flying from higher energy excited state energy levels in a stable nature, and release energy in the form of light emitted light at the same time. Emitted light with wavelength and phase as the input signal combinations, so that the eyes amplify the signal.
This is a very simple way to förstärkare fiber communication systems because of this combination förstärkare in-line, it eliminates the need to create eye-electric and electric-eye process of conversion.
Pump laser wavelength and optical signal wavelength according to the important parameters for the operation of fiber amplifiers. This wavelength depends on the type of rare-earth element doped in the fiber and also on the composition of glass fibers.
Another important term to understand the fiber amplifier is gain. Get stage amplification per unit length of fiber. Depends on getting the materials and working conditions, and varies with wavelength for all materials.
Natural resources for input, the output power is proportional to the age of the long reach fiber. Thus, P (output) = P (input) x Gain x Length
High input power, saturation effects come to play. Then a small capacity less input and produce output power, which basically means walking out of the amplifier power needs to produce more output.
Link to this article:
Similar publications
How does call tracking work?
Date: 16-03-2010 | author: Daniel Bernal
What Nat (network address translation) - a Beginner's Guide
Date: 29-08-2011 | author: Shafraz Thawfeek
Dish network deal - take advantage of free offers dishnetwork
Date: 11-03-2010 | author: James Taylorthe
How does satellite radio work?
Date: 05-01-2011 | author: Jim Johnson
Story at home and in business - a story that works tips
Date: 24-03-2004 | author: Nancy Binzen
Comcast cable offers only a combination of entertainment and telecommunications
Date: 13-03-2008 | author: Julia Hall
What really matters when it comes to conferencing?
Date: 10-06-2005 | author: Jason Payne
How prepaid call cards should work for you
Date: 26-03-2007 | author: Vanessa A. Doctor