公开(公告)号：US20050244117A1

公开(公告)日：2005-11-03

申请号：US11075877

申请日：2005-03-10

申请人： Hiroki Tanaka ,  Yasuo Nakajima ,  Mitsunori Okada ,  Norimitsu Takaishi ,  Kenichi Mizoguchi ,  Hidetoshi Yasui

发明人： Hiroki Tanaka ,  Yasuo Nakajima ,  Mitsunori Okada ,  Norimitsu Takaishi ,  Kenichi Mizoguchi ,  Hidetoshi Yasui

IPC分类号： G01N3/00 ,  G02B6/44

CPC分类号： G02B6/4403 ,  G01N2203/0094 ,  G02B6/02285 ,  G02B6/4407

摘要： An optical fiber tape having low polarization mode dispersion characteristics and applied to a dense wavelength multiplex (DWDM) transmission system of a transmission rate from several Gb/s to several tens of Gb/S. We have found out that the polarization mode dispersion of an optical fiber tape relates to the loss tangent (tanδ) determined when the dynamic viscoelasticity is measured, and that particularly, if the loss tangent of when a dispersion shift fiber is used is made 0.080 or more and the loss tangent of when a single mode optical fiber is used is made 0.042 or more, the polarization mode coefficient of dispersion (PMD) is reduced to 0.3 ps/{square root}km preferable to realize a DWDM transmission system.

摘要翻译： 一种具有低偏振模色散特性的光纤带，其应用于从几Gb / s到几十Gb / S的传输速率的致密波长多路复用（DWDM）传输系统。 我们已经发现，光纤带的偏振模色散涉及当测量动态粘弹性时确定的损耗角正切（tandelta），特别是如果使用色散位移光纤时的损耗角正切为0.080或 使用单模光纤时的损耗角正切为0.042以上，偏振模色散系数（PMD）为0.3ps /（平方根）km，优选实现DWDM传输系统。

公开(公告)号：US07209614B2

公开(公告)日：2007-04-24

申请号：US11075877

申请日：2005-03-10

申请人： Hiroki Tanaka ,  Yasuo Nakajima ,  Mitsunori Okada ,  Norimitsu Takaishi ,  Kenichi Mizoguchi ,  Hidetoshi Yasui

发明人： Hiroki Tanaka ,  Yasuo Nakajima ,  Mitsunori Okada ,  Norimitsu Takaishi ,  Kenichi Mizoguchi ,  Hidetoshi Yasui

IPC分类号： G02B6/44

CPC分类号： G02B6/4403 ,  G01N2203/0094 ,  G02B6/02285 ,  G02B6/4407

摘要： An optical fiber tape having low polarization mode dispersion characteristics and applied to a dense wavelength multiplex (DWDM) transmission system of a transmission rate from several Gb/s to several tens of Gb/S. We have found out that the polarization mode dispersion of an optical fiber tape relates to the loss tangent (tan δ) determined when the dynamic viscoelasticity is measured, and that particularly, if the loss tangent of when a dispersion shift fiber is used is made 0.080 or more and the loss tangent of when a single mode optical fiber is used is made 0.042 or more, the polarization mode coefficient of dispersion (PMD) is reduced to 0.3 ps/√km preferable to realize a DWDM transmission system.

摘要翻译： 一种具有低偏振模色散特性的光纤带，其应用于从几Gb / s到几十Gb / S的传输速率的致密波长多路复用（DWDM）传输系统。 我们已经发现，光纤带的偏振模色散涉及当测量动态粘弹性时确定的损耗角正切（tanδ），特别是如果使用色散位移光纤时的损耗角正切为0.080 以上，使用单模光纤时的损耗角正切为0.042以上，偏振模色散系数（PMD）为0.3ps /√km以下，实现DWDM传输系统。