Optical fiber for optical amplification and optical amplifier us

Details Optical fiber for optical amplification and optical amplifier us Optical fiber for optical amplification and optical amplifier us

1998-05-29

2000-04-25

Palmer, Phan T. H.

Optical waveguides

Optical fiber waveguide with cladding

385124, G02B 602

Patent

active

060553537

ABSTRACT:
The present invention provides an optical fiber for optical amplification used for an optical transmission system, for which the chromatic dispersion is controlled, and an optical amplifier in which the optical fiber for optical amplification is employed. The optical fiber according to the invention is such that the cladding has a lower refractive index than the core and is disposed so as to surround the core having a higher refractive index than that of the cladding, wherein the refractive index difference .DELTA. of the core with respect to the abovementioned cladding is from 0.4% to 1.9% and the diameter of the abovementioned core is from 4.2 to 5.0 .mu.m.

REFERENCES:
patent: 5838868 (1998-11-01), Krol et al.
patent: 5894537 (1999-04-01), Berkey et al.

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