公开(公告)号：US06324327B1

公开(公告)日：2001-11-27

申请号：US09694966

申请日：2000-10-24

申请人： James B. Herring ,  David K. Smith

发明人： James B. Herring ,  David K. Smith

IPC分类号： G02B602

CPC分类号： G02B6/03644 ,  G02B6/02242 ,  G02B6/02257 ,  G02B6/0286 ,  G02B6/03611

摘要： Disclosed is a segmented core optical waveguide fiber having low total dispersion slope and negative total dispersion over an extended wavelength window. A wavelength window of particular interest is that in the range of about 1500 nm to 1600 nm. The waveguide fibers in accordance with the invention also have cabled cut off wavelength below about 1480 nm and attenuation at 1550 nm of less than 0.22 dB/km. Mode field diameter is maintained essentially at the nominal value for dispersion shifted waveguide fiber, i.e., 7.7 &mgr;m to 8.7 &mgr;m. Embodiments having a center segment and a first and a second annular segment are discussed in detail.

摘要翻译： 公开了一种在扩展波长窗口上具有低总色散斜率和负总色散的分段核心光纤光纤。 特别感兴趣的波长窗口是在约1500nm至1600nm的范围内。 根据本发明的波导纤维还具有低于约1480nm的电缆切断波长和在1550nm处的衰减小于0.22dB / km。 模式场直径基本上保持在色散位移波导光纤的标称值，即7.7毫米至8.7毫米。 详细讨论具有中心段和第一和第二环形段的实施例。