Optical fiber transmission path with dispersion compensation

An optical fiber transmission path with dispersion compensation, comprising a first optical fiber with negative total dispersion at a predetermined operating wavelength connected to a second optical fiber with positive total dispersion at said operating wavelength, wherein the relative value of the lengths of said first and said second optical fibers are adjusted so that the combined dispersion of said transmission path is approximately zero at said operating wavelength, and wherein said second optical fiber comprises a fluoride glass-based single-mode optical fiber formed of a glass with a zero material dispersion wavelength greater than 1.7 .mu.m, whereby a relatively short length of said second optical fiber may be used.

An optical fiber transmission path with dispersion compensation, comprising a first optical fiber with negative total dispersion at a predetermined operating wavelength in the range of from 1.3 .mu.m to 2.0 .mu.m, said first fiber being connected to a second optical fiber with positive total dispersion at said operating wavelength, wherein the relative value of the lengths of said first and said second optical fibers are adjusted so that the combined dispersion of said transmission path is approximately zero at said operating wavelength, and wherein said second optical fiber comprises a glass with a zero material dispersion wavelength greater than 1.7 .mu.m, whereby a relatively short length of said second optical fiber may be used.

An optical fiber transmission path with dispersion compensation, comprising a first optical fiber with negative total dispersion at a predetermined operating wavelength connected to a second optical fiber with positive total dispersion at said operating wavelength, wherein said positive total dispersion of said second optical fiber is greater than 1 ps/.ANG./km at said operating wavelength, whereby a relatively short length of said second optical fiber may be used in said transmission path.

An optical fiber transmission path with dispersion compensation, comprising a first silica-based optical fiber connected to a second fluoride glass-based optical fiber, wherein said second optical fiber comprises a glass matrix composition, calculated on a fluoride basis from the metal content of the glass, of 20-32 mol% CdF.sub.2, 24-41.2 mol% AlF.sub.3, 24-41.2 mol% PbF.sub.2, 5-10 mol% LiF, 0-7 mol% KF, 0-8 mol% YF.sub.3, and 0-5 mol% LaF.sub.3, with oxygen added in the range of from 0.8 to 1.5 mol%.