Patent ID: 8482847

Claim:
An optical fiber, comprising: at least one first light transmissive medium; at least one second light transmissive medium concentrically surrounding the first light transmissive medium; wherein the optical fiber has a dispersion accuracy, and wherein the dispersion accuracy of the optical fiber, in terms of a normalized dispersion fluctuation parameter f, is less than approximately 5 and wherein the optical fiber exhibits less than 1 ps/nm/km (picoseconds per nanometer per kilometer) change in dispersion in an optical wavelength range between 1200 nm to 2000 nm in response to a 1 percent change in a radial dimension of the optical fiber, and wherein an absolute value of the fourth order dispersion term β (4) of the optical fiber at an optical wavelength between 1530 nm and 1610 nm is not more than approximately 1×10 −54 s4/m.