Erbium Doped Fiber Amplifiers

Erbium Doped Fiber Amplifiers play a crucial role in optical amplification. These amplifiers stress the importance of the interrelation of material properties, optical properties and system aspects of optical fiber amplifiers. Erbium doped fiber amplifiers have been developed to take advantage of the high output power and efficiency of 0.98 mm broad-area multimode pumps. The latest results, using a novel doped fiber, have shown efficient shelled-pumping, while offering the same spectral characteristics as current WDM amplifiers in both the conventional and long wavelength bands (C and L bands).

Landline communications have given way to fiber optic lines due to significant bandwidth requirements. To carry signals for long distances, amplifiers must be placed along the length of the fiber to compensate for losses. Amplifying the signal electrically is undesirable, as are semiconductor laser amplifiers. Erbium-Doped Fiber Amplifiers (EDFAs) do not have the problems that the other two solutions do, and have therefore gone from laboratory research to standard industry practice in a few years.

Erbium Doped Fiber Amplifiers (EDFAs) amplify optical signals using stimulated emission while stimulating the material with light instead of electricity. This solves one of the major problems associated with transmission. The other big problem is solved by dropping the stimulated material into the fiber optic cable. That means there is not a noisy junction between the fiber and some other material that might not carry an optical signal. EDFAs have several important properties that make them an excellent choice for an optical amplifier.

Remember that there are several very specific bands that fiber optic cables can carry. Erbium ions (Er3+) have quantum levels that allow them to be stimulated to emit in the 1540nm band, which is the band that has the least power loss in most silica-based fiber. Erbium's quantum levels also allow it to be energized by a signal at either 800nm or 980nm. Both of which silica-based fiber can carry without great losses, but aren't so efficient that you'd want to put your signal there. Though EDFAs are not perfect, they have several significant benefits. Count on us for the best prices and quality on Erbium Doped Fiber Amplifiers. We promise to live up to and even exceed your expectations in every possible way.

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