发明授权
- 专利标题： Optical fiber tape of low polarization mode dispersion characteristic and method for measuring dynamic viscoelasticity of the optical fiber tape
- 专利标题（中）： 低偏振模色散特性的光纤胶带和测量光纤胶带动态粘弹性的方法
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申请号： US11075877申请日： 2005-03-10
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公开(公告)号： US07209614B2公开(公告)日： 2007-04-24
- 发明人: Hiroki Tanaka , Yasuo Nakajima , Mitsunori Okada , Norimitsu Takaishi , Kenichi Mizoguchi , Hidetoshi Yasui
- 申请人： Hiroki Tanaka , Yasuo Nakajima , Mitsunori Okada , Norimitsu Takaishi , Kenichi Mizoguchi , Hidetoshi Yasui
- 申请人地址： JP Tokyo
- 专利权人： The Furukawa Electric Co., Ltd.
- 当前专利权人： The Furukawa Electric Co., Ltd.
- 当前专利权人地址： JP Tokyo
- 代理机构： Oblon, Spivak, McClelland, Maier & Neustadt, P.C.
- 优先权： JP2002-265366 20020911
- 主分类号： G02B6/44
- IPC分类号： G02B6/44
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.
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