Optical-fiber light amplifier

Details Optical-fiber light amplifier Optical-fiber light amplifier

1993-08-24

1995-10-03

Boudereau, Leo H.

Optical: systems and elements

Deflection using a moving element

Using a periodically moving element

359134, 359160, 359173, 359341, 372 6, H04B 1012, H04B 1000

Patent

active

054557046

ABSTRACT:
An optical-fiber light amplifier using rare-earth-doped optical fibers. The light amplifier combines first and second excitation light from first and second sources to form combined excitation light and divides the combined excitation light for inverted distribution to both two optical fibers. The light entered one optical fiber and that entered the other optical fiber are polarized so as to be perpendicular to each other so that fluctuation of output level is prevented without mutual interference. Alternatively the first excitation light and the second excitation light may have different wavelengths; also in this case, fluctuation of level is prevented without any interference.

REFERENCES:
patent: 4554510 (1985-11-01), Shaw et al.
patent: 5015054 (1991-05-01), Chaffee
patent: 5058974 (1991-10-01), Mollenauer
patent: 5115338 (1992-05-01), DiGiovanni et al.
patent: 5138621 (1992-08-01), Goto et al.
patent: 5187759 (1993-02-01), DiGiovanni et al.
patent: 5216728 (1993-06-01), Charlton et al.
patent: 5311347 (1994-05-01), Kubo et al.

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