Fiber optic amplifier

Details Fiber optic amplifier Fiber optic amplifier

1982-12-10

1985-10-08

Sikes, William L.

Coherent light generators

Optical fiber laser

350 9615, 372 69, H01S 330

Patent

active

045464766

ABSTRACT:
A pair of small diameter optical fibers are arranged in a side-by-side configuration, the first fiber providing a pumping source, and the second fiber doped with a material which will lase at the signal frequency. The signal to be amplified propagates through the second fiber to stimulate emission of coherent light from the lasing material, resulting in amplification of the signal. The refractive index of the first and second fibers are selected such that the signal in the second fiber is well guided, while the pumping light in the first fiber is unguided, yielding low losses in the second fiber but high transfer of the pumping light from the first fiber to the second fiber.

REFERENCES:
patent: 3456299 (1969-07-01), Koester
patent: 3779628 (1973-12-01), Kapron et al.
patent: 4136929 (1979-01-01), Suzaki

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