公开(公告)号：EP1398653A1

公开(公告)日：2004-03-17

申请号：EP02027634.1

申请日：2002-12-11

申请人： FITEL USA CORPORATION (a Delaware Corporation)

发明人： Gaarde, Peter ,  Gruner-Nielsen, Lars ,  Larsen, Christian ,  Palsdottir, Bera ,  Qian, Yujun

IPC分类号： G02B6/16 ,  H04B10/17 ,  H04B10/18

CPC分类号： G02B6/03666 ,  G02B6/02261 ,  G02B6/03611 ,  G02B6/03644 ,  G02B6/29376 ,  H04B10/2525 ,  H04B10/2916

摘要： An optical fiber suited for dispersion compensation with simultaneous Raman amplification. The fiber has a central core and an index profile that defines successively concentric regions radially outward of the core. The core has a diameter of between 2 and 5 microns (µm) and a refractive index difference (Δn) with respect to the outer cladding of between 0.012 and 0.035. A trench region adjacent the core is between 2 and 6 µm wide and has a negative Δn of between -0.015 and -0.003. A ring region adjacent the trench region is between 1 and 5 µm wide and has a Δn of between 0.001 and 0.015, and an inner cladding surrounding the ring region has a width of between zero and 5 µm and a Δn of between -0.011 and 0.001. A dispersion slope compensating module (DSCM) including the fiber obtains a relatively high Raman gain with respect to conventional DSCMs that are pumped for Raman amplification.

摘要翻译： 光纤（10）具有宽度为2〜6μm的沟槽区域（14），折射率分布图中的负折射率差（Δn）为-0.015〜-0.003。 环区域（16）的折射率分布宽度为1〜5μm，折射率差为0.001〜0.015。 内包层（18）的宽度为0〜5μm，折射率差为-0.011和0.001。 还包括以下独立权利要求：（1）光纤色散斜率补偿模块; （2）光纤传输系统。