Patent ID: 6512872
Filing Date: 2003-01-28
Classification: G02B,H04B

Abstract:
A dispersion compensating optical fiber which comprises a core and a clad including an innermost layer and an outermost layer, and has a refractive index distribution structure satisfying conditions of 0.8%&lE;&Dgr;1&lE;1.3% and âˆ’0.7%21 represents a relative refractive index difference of the core with respect to the outermost layer of the clad, and &Dgr;2 represents a relative refractive index difference of the innermost layer of the clad with respect to the outermost layer of the clad, and also satisfying the conditions of âˆ’20&lE;D&lE;âˆ’8, âˆ’0.1&lE;S<0 and 0&lE;(D/S)&lE;200 in specified wavelength band having a band width of at least 20 nm in a 1.5 &mgr;m wavelength band, where D represents the chromatic dispersion (ps/nm/km) at a specified wavelength in a 1.5 &mgr;m wavelength band, and S represents the dispersion slope (ps/nm2/km).