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    • 13. 发明申请
    • LARGE KAPPA DISPERSION COMPENSATING FIBER AND TRANSMISSION SYSTEM
    • 大型KAPPA分散补充光纤和传输系统
    • WO2006012107A2
    • 2006-02-02
    • PCT/US2005021866
    • 2005-06-20
    • CORNING INCBICKHAM SCOTT R
    • BICKHAM SCOTT R
    • G02B6/00G02B6/02G02B6/036H04B10/18
    • G02B6/02261G02B6/02004G02B6/0228G02B6/0281G02B6/03644G02B6/03677G02B6/03688H04B10/2525
    • A dispersion compensation fiber for a moderate dispersion, low slope transmission fiber and transmission system including same. The dispersion compensating fiber has a refractive index profile having a central core with a core delta (?1), a moat surrounding the central core having a moat delta (?2), and a ring surrounding the moat having a positive ring delta (?3). The fiber's refractive index profile is selected to provide total dispersion less than -80 at 1550 nm and less than -90 ps/nm/km at 1600 nm, dispersion slope less than -0.18 ps/nm 2 /km at 1550 and less than -0.10 ps/nm 2 /km at 1600 nm, kappa between 250 and 450 at 1550 nm, and a kappa ratio (defined as kappa at 1600 nm / kappa at 1550 nm) of greater than 1.35. The dispersion compensating fiber, when used in a transmission system, may provide low average residual dispersion across the C, L, and C+L bands when such systems include moderate dispersion, low dispersion slope transmission fibers with a total dispersion between 4 and 8 ps/nm/km, and a dispersion slope less than 0.025 ps/nm 2 /km at all wavelengths between 1525 and 1625 nm.
    • 用于中等色散,低斜率传输光纤和包括其的传输系统的色散补偿光纤。 色散补偿光纤具有折射率分布,该折射率分布具有具有核心三角形(α1)的中心核心,围绕中心核心的护城河具有护城河三角洲(λ2),以及围绕该护城河的环,其具有正的环形三角洲 3)。 纤维的折射率分布被选择以提供在1550nm小于-80,在1600nm小于-90ps / nm / km的色散斜率小于-0.18ps / nm 2 / 在1600nm处的1550和小于-0.10ps / nm 2 / km,在1550nm处的250和450之间的kappa比率(kappa比(在1600nm / kpa在1550nm下被定义为kappa) )大于1.35。 当在传输系统中使用时,色散补偿光纤可以在C,L和C + L频带上提供低的平均残余色散,当这种系统包括中等色散时,总色散在4和8ps之间的低色散斜率传输光纤 / nm / km,以及在1525和1625nm之间的所有波长处的色散斜率小于0.025ps / nm 2 / km。