G - Physics – 02 – B
Patent
G - Physics
02
B
G02B 6/036 (2006.01)
Patent
CA 2356421
The invention provides an optical fiber suitable for an optical transmission line for controlling the dispersion of a total line such that this dispersion is approximately zero by combining plural optical fibers. As one example, in the optical fiber having a refractive index profile structure of four layers, a relative refractive index difference .DELTA.1 of a center core with respect to a clad is set to 0.75 % or more and 0.90 % or less, and dispersion at a wavelength of 1.55 µm is set to -18 ps/nm/km or more and -8 ps/nm/km or less, and an effective core section area A eff at the wavelength of 1.55 µm is set to 32 µm2 or more.
Freedman & Associates
The Furukawa Electric Co. Ltd
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