Fiber amplifier with multiple pumps

Details Fiber amplifier with multiple pumps Fiber amplifier with multiple pumps

1992-12-16

1994-02-15

Hellner, Mark

Optical: systems and elements

Optical amplifier

Optical fiber

359345, H01S 330, H04J 100

Patent

active

052872165

ABSTRACT:
A fiber optic amplifier is disclosed utilizing a doped fiber to provide amplification through stimulated emission. The doped fiber is simultaneously pumped by multiple pump lasers generating optical waves of differing wavelengths. The optical waves from the lasers are combined using a wavelength division multiplexer before introduction into the doped fiber. The use of multiple pump lasers decreases the power requirements of each laser, reduces the cost of the amplifier, and increases reliability without compromising the gain of the amplifier.

REFERENCES:
patent: 5140456 (1992-08-01), Huber
patent: 5185826 (1993-02-01), Delavaux
patent: 5191586 (1993-03-01), Huber
Shiraishi, Kazuo, et al. "Beam Expanding Fiber Using Thermal Diffusion of the Dopant", Journal of Lightwave Technology, vol. 8., No. 8, Aug. 1990.

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