Optical power amplifier with Al.sub.2 O.sub.3 and erbium doped a

Details Optical power amplifier with Al.sub.2 O.sub.3 and erbium doped a Optical power amplifier with Al.sub.2 O.sub.3 and erbium doped a

1993-11-23

1997-06-10

Moskowitz, Nelson

Optical: systems and elements

Optical amplifier

Optical fiber

359343, 372 6, H01S 300, G02B 610

Patent

active

056382049

ABSTRACT:
An optical fiber power amplifier, particularly for telecommunication lines with optical fibers, including an active fiber doped with Erbium as a fluorescing substance, and with Al.sub.2 O.sub.3 as refraction index modifying dopant. The fiber is pumped with a laser providing a wavelength higher than 520 nm and preferably, 980 nm. The amplifier has a particularly high amplification efficiency close to the theoretical maximum efficiency.

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