| 摘要 |
A DCF adapted to compensate for dispersion and slope of a length of SMF in the C-band window that includes a core surrounded by a cladding layer of refractive index Deltac. The core includes at least three radially adjacent segments, a central core segment having a positive Delta1, a moat segment having a negative refractive index Delta2, and a ring segment having a positive refractive index Delta3, wherein Delta1>Delta3 >Deltac>Delta2. The DCF exhibits a negative Dispersion Slope (DS), where -0.29 (ps/nm<2>.km) at 1546 nm, a dispersion (D), where -100<D<-120 (ps.nm.km) at 1546 nm, and a kappa value (D/DS) at 1546 nm that is preferably between 250 and 387 nm. The DCF preferably has a cutoff wavelength (lambdac) less than 1500 nm, attenuation at 1550 nm of less than 0.6 dB/km, and a bend loss of less than 0.01 dB/m on a 40 mm mandrel at 1550 nm. A transmission link including the combination of a SMF and a DCF having a dispersion (D), where -100<D<-120, is also disclosed.
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