公开(公告)号：US08340482B2

公开(公告)日：2012-12-25

申请号：US12732640

申请日：2010-03-26

申请人： Yoshihiro Arashitani ,  Toshio Miyahara ,  Yoshihiro Emori ,  Masanobu Nakamura

发明人： Yoshihiro Arashitani ,  Toshio Miyahara ,  Yoshihiro Emori ,  Masanobu Nakamura

IPC分类号： G02B6/42 ,  G02B6/26 ,  G02B6/00

CPC分类号： H01S3/06704 ,  H01S3/0405 ,  H01S3/0407

摘要： An optical fiber holding apparatus in accordance with the present invention is characterized in that the same comprises a surface in order to hold an optical fiber which is to be a state of which is rolled up so as not to overlap with each other, wherein at least the surface is formed of a thermo conductive molding body which has a thermal conductivity to be higher than or equal to 0.5 W/mK, and which has an Asker C hardness to be between twenty and fifty. Or, the same comprises a peripheral surface in order to roll up and hold an optical fiber, wherein at least the peripheral surface is formed of a thermo conductive molding body which has the thermal conductivity to be higher than or equal to 0.5 W/mK, and which has the Asker C hardness to be between twenty and fifty. Moreover, it is desirable for the thermo conductive molding body to have a compressive strength of which a peak value is between ten and thirty N/cm2 and a stabilized value is between three and ten N/cm2. Furthermore, it is desirable for the thermo conductive molding body to have the thermal conductivity to be higher than or equal to 1.0 W/mK and to have the Asker C hardness to be between twenty-five and forty.

摘要翻译： 根据本发明的光纤保持装置的特征在于，其特征在于包括一个表面，以便保持状态被卷起以彼此不重叠的光纤，其中至少 该表面由热传导率高于或等于0.5W / m·K且具有二十到五十之间的Asker C硬度的热导成型体形成。 或者，其包括外围表面以卷起和保持光纤，其中至少外周表面由具有高于或等于0.5W / mK的热导率的热导成型体形成， 并且其Asker C硬度为二十至五十。 此外，期望热导成型体具有峰值在10至30N / cm 2之间的压缩强度，并且稳定值在3至10N / cm 2之间。 此外，热传导性成形体的导热率优选为1.0W / m·K以上，Asker C的硬度为25〜40。

公开(公告)号：US20090016681A1

公开(公告)日：2009-01-15

申请号：US12231947

申请日：2008-09-08

申请人： David John DiGiovanni ,  Yoshihiro Emori ,  Michael Fishteyn ,  Clifford Headley

发明人： David John DiGiovanni ,  Yoshihiro Emori ,  Michael Fishteyn ,  Clifford Headley

IPC分类号： G02B6/26 ,  G02B6/04

CPC分类号： G02B6/2804 ,  G02B6/02395 ,  G02B6/0365

摘要： An optical transmission fiber is formed to include a relatively low-index, relatively thin outer cladding layer disposed underneath the protective polymer outer coating. Stray light propagating along an inner cladding layer(s) within the fiber will be refracted into the thin outer cladding (by proper selection of refractive index values). The thin dimension of the outer cladding layer allows for the stray light to “leak” into the outer coating in a controlled, gradual manner so as to minimize heating of the coating associated with the presence of stray light. The inventive fiber may also be bent to assist in the movement of stray light into the coating.

公开(公告)号：US07440167B2

公开(公告)日：2008-10-21

申请号：US11767314

申请日：2007-06-22

申请人： Yuki Taniguchi ,  Yoshihiro Emori ,  Ryuichi Sugizaki ,  Atsushi Oguri ,  Takeshi Yagi

发明人： Yuki Taniguchi ,  Yoshihiro Emori ,  Ryuichi Sugizaki ,  Atsushi Oguri ,  Takeshi Yagi

IPC分类号： H01S4/00 ,  H04B10/12 ,  G02B6/036

CPC分类号： G02B6/0281 ,  G02B6/02028 ,  G02B6/02242 ,  G02B6/02252 ,  G02B6/03627 ,  H01S3/06716 ,  H01S3/06725 ,  H01S3/06729 ,  H01S3/06758 ,  H01S3/06766 ,  H01S3/0677 ,  H01S3/06775 ,  H01S3/094003 ,  H01S3/302

摘要： An optical fiber for Raman amplification amplifies a signal light with a pumping light. A chromatic dispersion at a wavelength of 1,550 nm is in a range between −70 ps/nm/km and −30 ps/nm/km. Raman gain efficiency with a pumping light of 1,450 nm is equal to or more than 5 (W×km)−1. Nonlinear coefficient at the wavelength of 1,550 nm is equal to or less than 5.0×10−9 W−1. Zero-dispersion wavelength is neither at a wavelength of the signal light nor at a wavelength of the pumping light. Cut-off wavelength is equal to or less than the wavelength of the pumping light.

摘要翻译： 用于拉曼放大的光纤用泵浦光放大信号光。 波长为1,550nm的色散在-70ps / nm / km和-30ps / nm / km之间的范围内。 具有1,450nm的泵浦光的拉曼增益效率等于或大于5（Wxkm） ^{-1。 在1,550nm波长处的非线性系数等于或小于5.0×10 -9 W -1。 零色散波长既不在信号光的波长处，也不在泵浦光的波长处。 截止波长等于或小于泵浦光的波长。}

公开(公告)号：US07437046B2

公开(公告)日：2008-10-14

申请号：US11705229

申请日：2007-02-12

申请人： David John DiGiovanni ,  Yoshihiro Emori ,  Michael Fishteyn ,  Clifford Headley

发明人： David John DiGiovanni ,  Yoshihiro Emori ,  Michael Fishteyn ,  Clifford Headley

IPC分类号： G02B6/02 ,  G02B6/26

CPC分类号： G02B6/2804 ,  G02B6/02395 ,  G02B6/0365

摘要： An optical transmission fiber is formed to include a relatively low-index, relatively thin outer cladding layer disposed underneath the protective polymer outer coating. Stray light propagating along an inner cladding layer(s) within the fiber will be refracted into the thin outer cladding (by proper selection of refractive index values). The thin dimension of the outer cladding layer allows for the stray light to “leak” into the outer coating in a controlled, gradual manner so as to minimize heating of the coating associated with the presence of stray light. The inventive fiber may also be bent to assist in the movement of stray light into the coating.

公开(公告)号：US20080193093A1

公开(公告)日：2008-08-14

申请号：US11705229

申请日：2007-02-12

申请人： David John DiGiovanni ,  Yoshihiro Emori ,  Michael Fishteyn ,  Clifford Headley

发明人： David John DiGiovanni ,  Yoshihiro Emori ,  Michael Fishteyn ,  Clifford Headley

IPC分类号： G02B6/02 ,  G02B6/04

CPC分类号： G02B6/2804 ,  G02B6/02395 ,  G02B6/0365

摘要： An optical transmission fiber is formed to include a relatively low-index, relatively thin outer cladding layer disposed underneath the protective polymer outer coating. Stray light propagating along an inner cladding layer(s) within the fiber will be refracted into the thin outer cladding (by proper selection of refractive index values). The thin dimension of the outer cladding layer allows for the stray light to “leak” into the outer coating in a controlled, gradual manner so as to minimize heating of the coating associated with the presence of stray light. The inventive fiber may also be bent to assist in the movement of stray light into the coating.

摘要翻译： 光传输光纤被形成为包括设置在保护性聚合物外涂层下方的相对较低折射率的较薄的外包层。 沿着纤维内的内包层传播的杂散光将被折射入薄的外包层（通过适当地选择折射率值）。 外包层的薄的尺寸允许杂散光以受控的逐渐的方式“泄漏”到外涂层中，以便最小化与杂散光的存在相关联的涂层的加热。 本发明的纤维也可以被弯曲以帮助杂散光移动到涂层中。

公开(公告)号：US20060126162A1

公开(公告)日：2006-06-15

申请号：US11326356

申请日：2006-01-06

申请人： Yuki Taniguchi ,  Yoshihiro Emori ,  Ryuichi Sugizaki ,  Atsushi Oguri ,  Takeshi Yagi

发明人： Yuki Taniguchi ,  Yoshihiro Emori ,  Ryuichi Sugizaki ,  Atsushi Oguri ,  Takeshi Yagi

IPC分类号： H01S3/00

CPC分类号： G02B6/0281 ,  G02B6/02028 ,  G02B6/02242 ,  G02B6/02252 ,  G02B6/03627 ,  H01S3/06716 ,  H01S3/06725 ,  H01S3/06729 ,  H01S3/06758 ,  H01S3/06766 ,  H01S3/0677 ,  H01S3/06775 ,  H01S3/094003 ,  H01S3/302

摘要： An optical fiber for Raman amplification amplifies a signal light with a pumping light. A chromatic dispersion at a wavelength of 1,550 nm is in a range between −70 ps/nm/km and −30 ps/nm/km. Raman gain efficiency with a pumping light of 1,450 nm is equal to or more than 5 (W×km)−1. Nonlinear coefficient at the wavelength of 1,550 nm is equal to or less than 5.0×10−9 W−1. Zero-dispersion wavelength is neither at a wavelength of the signal light nor at a wavelength of the pumping light. Cut-off wavelength is equal to or less than the wavelength of the pumping light.

摘要翻译： 用于拉曼放大的光纤利用泵浦光放大信号光。 波长为1,550nm的色散在-70ps / nm / km和-30ps / nm / km之间的范围内。 具有1,450nm的泵浦光的拉曼增益效率等于或大于5（Wxkm） ^{-1。 在1,550nm波长处的非线性系数等于或小于5.0×10 -9 W -1。 零色散波长既不在信号光的波长处，也不在泵浦光的波长处。 截止波长等于或小于泵浦光的波长。}

公开(公告)号：US06738180B2

公开(公告)日：2004-05-18

申请号：US10085709

申请日：2002-03-01

申请人： Takeshi Hirasawa ,  Yoshihiro Emori ,  Soko Kado

发明人： Takeshi Hirasawa ,  Yoshihiro Emori ,  Soko Kado

IPC分类号： H01S300

CPC分类号： H04B10/2916

摘要： An optical transmission system is provided in which a plurality of Raman amplifiers are combined so that the wavelength band of a first Raman amplifier in the form of an upward convex curve including the maximum gain value and the wavelength band of a second Raman amplifier in the form of a downward convex curve including the minimum gain value overlap with each other, and that the wavelength band of the first Raman amplifier in the form of a downward convex curve including the minimum gain value and the wavelength band of the second Raman amplifier in the form of an upward convex curve including the maximum gain value overlap with each other. This arrangement also applies to cases where three or more amplifiers are used. Due to this arrangement, an optical transmission system is realized in which it is possible to attain a reduction in Raman gain flatness without using any means such as an equalizer.

摘要翻译： 提供一种光传输系统，其中组合多个拉曼放大器，使得以包括最大增益值和第二拉曼放大器的波长带的向上凸曲线的形式的第一拉曼放大器的波长带的形式 包括最小增益值的向下凸曲线彼此重叠，并且以包括第二拉曼放大器的最小增益值和第二拉曼放大器的波长带的向下凸曲线的形式的第一拉曼放大器的波长带的形式 包括最大增益值的向上凸曲线彼此重叠。 这种布置也适用于使用三个或更多放大器的情况。 由于这种布置，实现了一种光传输系统，其中可以在不使用诸如均衡器的任何装置的情况下实现拉曼增益平坦度的降低。

公开(公告)号：US06927896B2

公开(公告)日：2005-08-09

申请号：US10193239

申请日：2002-07-12

申请人： Yoshihiro Emori

发明人： Yoshihiro Emori

IPC分类号： G02F1/35 ,  H01S3/094 ,  H01S3/0941 ,  H01S3/10 ,  H01S3/30 ,  H01S3/00

CPC分类号： H04B10/2916 ,  H04B2210/258

摘要： In a Raman optical amplification system in which WDM optical signals comprising two or more signal bands are transmitted in a transmission line, and in which a plurality of pumping lightwaves are introduced into said transmission line so that WDM optical signals in the shortest signal band are Raman-amplified by said plurality of pumping lightwaves, the interval between the longest pumping wavelength and the next-longest pumping wavelength differs by 0.2 to 1.4 THz in frequency. This makes it possible to flatten the level of the WDM signals by means of canceling the Raman gain ripple on the longer wavelength region of the distributed amplification.

摘要翻译： 在拉曼光放大系统中，其中包括两个或多个信号带的WDM光信号在传输线中传输，并且其中多个泵浦光波被引入所述传输线，使得最短信号带中的WDM光信号为拉曼 由所述多个泵浦光波放大，最长的激发波长与下一个最长的激发波长之间的间隔频率相差0.2至1.4THz。 这使得可以通过消除分布放大的较长波长区域上的拉曼增益纹波来平坦化WDM信号的电平。

公开(公告)号：US20100247055A1

公开(公告)日：2010-09-30

申请号：US12732640

申请日：2010-03-26

申请人： Yoshihiro ARASHITANI ,  Toshio Miyahara ,  Yoshihiro Emori ,  Masanobu Nakamura

发明人： Yoshihiro ARASHITANI ,  Toshio Miyahara ,  Yoshihiro Emori ,  Masanobu Nakamura

IPC分类号： G02B6/00

CPC分类号： H01S3/06704 ,  H01S3/0405 ,  H01S3/0407

摘要： An optical fiber holding apparatus in accordance with the present invention is characterized in that the same comprises a surface in order to hold an optical fiber which is to be a state of which is rolled up so as not to overlap with each other, wherein at least the surface is formed of a thermo conductive molding body which has a thermal conductivity to be higher than or equal to 0.5 W/mK, and which has an Asker C hardness to be between twenty and fifty. Or, the same comprises a peripheral surface in order to roll up and hold an optical fiber, wherein at least the peripheral surface is formed of a thermo conductive molding body which has the thermal conductivity to be higher than or equal to 0.5 W/mK, and which has the Asker C hardness to be between twenty and fifty. Moreover, it is desirable for the thermo conductive molding body to have a compressive strength of which a peak value is between ten and thirty N/cm2 and a stabilized value is between three and ten N/cm2. Furthermore, it is desirable for the thermo conductive molding body to have the thermal conductivity to be higher than or equal to 1.0 W/mK and to have the Asker C hardness to be between twenty-five and forty.

摘要翻译： 根据本发明的光纤保持装置的特征在于，其特征在于包括一个表面，以便保持状态被卷起以彼此不重叠的光纤，其中至少 该表面由热传导率高于或等于0.5W / m·K且具有二十到五十之间的Asker C硬度的热导成型体形成。 或者，其包括外围表面以卷起和保持光纤，其中至少外周表面由具有高于或等于0.5W / mK的热导率的热导成型体形成， 并且其Asker C硬度为二十至五十。 此外，期望热导成型体具有峰值在10至30N / cm 2之间的压缩强度，并且稳定值在3至10N / cm 2之间。 此外，热传导性成形体的导热率优选为1.0W / m·K以上，Asker C的硬度为25〜40。

公开(公告)号：US20070247702A1

公开(公告)日：2007-10-25

申请号：US11767314

申请日：2007-06-22

申请人： Yuki TANIGUCHI ,  Yoshihiro Emori ,  Ryuichi Sugizaki ,  Atsushi Oguri ,  Takeshi Yagi

发明人： Yuki TANIGUCHI ,  Yoshihiro Emori ,  Ryuichi Sugizaki ,  Atsushi Oguri ,  Takeshi Yagi

IPC分类号： H01S3/00

CPC分类号： G02B6/0281 ,  G02B6/02028 ,  G02B6/02242 ,  G02B6/02252 ,  G02B6/03627 ,  H01S3/06716 ,  H01S3/06725 ,  H01S3/06729 ,  H01S3/06758 ,  H01S3/06766 ,  H01S3/0677 ,  H01S3/06775 ,  H01S3/094003 ,  H01S3/302

摘要： An optical fiber for Raman amplification amplifies a signal light with a pumping light. A chromatic dispersion at a wavelength of 1,550 nm is in a range between −70 ps/nm/km and −30 ps/nm/km. Raman gain efficiency with a pumping light of 1,450 nm is equal to or more than 5 (W×km)−1. Nonlinear coefficient at the wavelength of 1,550 nm is equal to or less than 5.0×10−9 W−1. Zero-dispersion wavelength is neither at a wavelength of the signal light nor at a wavelength of the pumping light. Cut-off wavelength is equal to or less than the wavelength of the pumping light.

摘要翻译： 用于拉曼放大的光纤利用泵浦光放大信号光。 波长为1,550nm的色散在-70ps / nm / km和-30ps / nm / km之间的范围内。 具有1,450nm的泵浦光的拉曼增益效率等于或大于5（Wxkm） ^{-1。 在1,550nm波长处的非线性系数等于或小于5.0×10 -9 W -1。 零色散波长既不在信号光的波长处，也不在泵浦光的波长处。 截止波长等于或小于泵浦光的波长。}