公开(公告)号：US06516125B1

公开(公告)日：2003-02-04

申请号：US09622521

申请日：2000-08-17

申请人： Hye Young Park ,  Kwon Moo Lee ,  Joon Hyung Cho

发明人： Hye Young Park ,  Kwon Moo Lee ,  Joon Hyung Cho

IPC分类号： G02B602

CPC分类号： G02B6/02014 ,  G02B6/02271 ,  G02B6/0281 ,  G02B6/03611 ,  G02B6/03638

摘要： The present invention is related to a dispersion-shifted optical fiber for use in a wavelength division multiplexing system, which comprises a core, an inner clad, and a silica clad, wherein the optical fiber has a relatively low dispersion at a wavelength of 1550 nm, an effective area of 60 &mgr;m2 and small bending loss. The core consists of a first and a second core, wherein the core has a refractive index distribution. The inner clad consists of a first inner clad having a refractive index smaller than that of the second core and a second inner clad having a refractive index smaller than that of the second inner clad. A silica clad surrounds the inner clad and has a refractive index smaller than that of the second inner clad.

摘要翻译： 本发明涉及一种波分复用系统中使用的色散位移光纤，其包括芯，内包层和二氧化硅包层，其中光纤在波长1550nm处具有较低的色散 ，有效面积为60mum2，弯曲损耗小。 芯由第一和第二芯组成，其中芯具有折射率分布。 内包层由折射率小于第二芯的折射率的第一内包层和比第二内包层的折射率小的第二内包层组成。 二氧化硅包层包围内包层，折射率小于第二内包层的折射率。