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1. 发明授权

US07298934B2 Optical fiber and method of measuring polarization mode dispersion of optical fiber 有权
标题翻译：光纤和光纤偏振模色散测量方法
公开(公告)号：US07298934B2
公开(公告)日：2007-11-20
申请号：US11405407
申请日：2006-04-18
申请人： Ryuichiro Goto , Shoji Tanigawa , Shoichiro Matsuo , Kuniharu Himeno
发明人： Ryuichiro Goto , Shoji Tanigawa , Shoichiro Matsuo , Kuniharu Himeno
IPC分类号： G02B6/00 , G01N21/00 , H04J14/02
CPC分类号： G02B6/02285 , G01M11/3181
摘要： A method of measuring polarization mode dispersion (PMD) of an optical fiber, includes estimating PMD when an optical fiber is formed as an optical cable, from a beat length when the optical fiber is wound around a bobbin, and an average coupling length when the optical fiber is formed as the optical cable.
摘要翻译：测量光纤的偏振模色散（PMD）的方法包括：当光纤缠绕在绕线管上时，从形成光纤作为光缆的估计PMD，以及当光纤缠绕在绕线管上时的平均耦合长度形成光纤作为光缆。

2. 发明申请

US20060192942A1 Optical fiber and method of measuring polarization mode dispersion of optical fiber 有权
标题翻译：光纤和光纤偏振模色散测量方法
公开(公告)号：US20060192942A1
公开(公告)日：2006-08-31
申请号：US11405407
申请日：2006-04-18
申请人： Ryuichiro Goto , Shoji Tanigawa , Shoichiro Matsuo , Kuniharu Himeno
发明人： Ryuichiro Goto , Shoji Tanigawa , Shoichiro Matsuo , Kuniharu Himeno
IPC分类号： G02B6/02 , G02B6/036 , G01N21/00
CPC分类号： G02B6/02285 , G01M11/3181
摘要： A method of measuring polarization mode dispersion (PMD) of an optical fiber, includes estimating PMD when an optical fiber is formed as an optical cable, from a beat length when the optical fiber is wound around a bobbin, and an average coupling length when the optical fiber is formed as the optical cable.
摘要翻译：测量光纤的偏振模色散（PMD）的方法包括：当光纤缠绕在绕线管上时，从形成光纤作为光缆的估计PMD，以及当光纤缠绕在绕线管上时的平均耦合长度形成光纤作为光缆。

3. 发明授权

US07526168B2 Optical fiber, transmission system, and wavelength division multiplexing system 有权
标题翻译：光纤，传输系统和波分复用系统
公开(公告)号：US07526168B2
公开(公告)日：2009-04-28
申请号：US11744117
申请日：2007-05-03
申请人： Shoichiro Matsuo , Shoji Tanigawa , Keisuke Uchiyama , Kuniharu Himeno
发明人： Shoichiro Matsuo , Shoji Tanigawa , Keisuke Uchiyama , Kuniharu Himeno
IPC分类号： G02B6/02
CPC分类号： H04J14/02 , G02B6/02004 , G02B6/02009 , G02B6/02266 , G02B6/0281 , G02B6/0286 , G02B6/03605 , G02B6/03644 , G02B6/03666 , G02B6/03688 , H04B10/2537 , H04J14/0226 , H04J14/0232 , H04J14/0247 , H04J14/0252 , H04J14/0282
摘要： An optical fiber has a first mode field diameter in a dominant mode of an acoustic mode generated in the optical fiber different from a second mode field diameter in a light intensity distribution of the optical fiber. Furthermore, a transmission system is configured to perform an analog signal transmission, a baseband transmission, or an optical SCM transmission by use of the optical fiber.
摘要翻译：在光纤的光强度分布中，光纤具有在与第二模场直径不同的光纤中产生的声学模式的主模式中的第一模场直径。此外，传输系统被配置为通过使用光纤来执行模拟信号传输，基带传输或光SCM传输。

4. 发明授权

US06928211B2 Optical fiber and optical transmission path that uses the optical fiber 失效
标题翻译：使用光纤的光纤和光传输路径
公开(公告)号：US06928211B2
公开(公告)日：2005-08-09
申请号：US10636552
申请日：2003-08-08
申请人： Shoji Tanigawa , Shoichiro Matsuo , Kuniharu Himeno
发明人： Shoji Tanigawa , Shoichiro Matsuo , Kuniharu Himeno
IPC分类号： G02B6/036 , G02B6/02
CPC分类号： G02B6/02271 , G02B6/02 , G02B6/02014 , G02B6/03611
摘要： There is provided at low cost an optical fiber suitable for wavelength division multiplex transmissions that has strengthened the tolerance to bending loss at even smaller bending diameters. The present invention is an optical fiber whose base material is silica glass and that has a two layer structure formed by a core that has a substantially uniform refractive index and by a cladding that is located outside the core and that has a substantially uniform refractive index, wherein the optical fiber satisfies the following conditions (1) to (3): (1) an outer diameter of the core is in a range of 4 to 8 μm, and a relative refractive index difference of the core is in a range of 0.4 to 0.8%; (2) chromatic dispersion at a wavelength of 1550 nm is in a range of 2 to 15 ps/nm/km; and (3) effective area at a wavelength of 1550 nm is 40 μm2 or more.
摘要翻译：以低成本提供了适用于波分复用传输的光纤，其在更小的弯曲直径下增强了对弯曲损耗的公差。本发明是一种基材为石英玻璃的光纤，其具有由具有基本上均匀的折射率的芯构成的两层结构，以及位于芯外部并具有基本上均匀的折射率的包层，其中光纤满足以下条件（1）至（3）：（1）芯的外径在4至8μm的范围内，并且芯的相对折射率差在0.4的范围内至0.8％; （2）波长1550nm的色散在2〜15ps / nm / km的范围内; 和（3）1550nm波长的有效面积为40μm以上。

5. 发明申请

US20080013906A1 OPTICAL FIBER, TRANSMISSION SYSTEM, AND WAVELENGTH DIVISION MULTIPLEXING SYSTEM 有权
标题翻译：光纤，传输系统和波长部分多路复用系统
公开(公告)号：US20080013906A1
公开(公告)日：2008-01-17
申请号：US11744117
申请日：2007-05-03
申请人： Shoichiro Matsuo , Shoji Tanigawa , Keisuke Uchiyama , Kuniharu Himeno
发明人： Shoichiro Matsuo , Shoji Tanigawa , Keisuke Uchiyama , Kuniharu Himeno
IPC分类号： G02B6/036
CPC分类号： H04J14/02 , G02B6/02004 , G02B6/02009 , G02B6/02266 , G02B6/0281 , G02B6/0286 , G02B6/03605 , G02B6/03644 , G02B6/03666 , G02B6/03688 , H04B10/2537 , H04J14/0226 , H04J14/0232 , H04J14/0247 , H04J14/0252 , H04J14/0282
摘要： An optical fiber has a first mode field diameter in a dominant mode of an acoustic mode generated in the optical fiber different from a second mode field diameter in a light intensity distribution of the optical fiber. Furthermore, a transmission system is configured to perform an analog signal transmission, a baseband transmission, or an optical SCM transmission by use of the optical fiber.
摘要翻译：在光纤的光强度分布中，光纤具有在与第二模场直径不同的光纤中产生的声学模式的主模式中的第一模场直径。此外，传输系统被配置为通过使用光纤来执行模拟信号传输，基带传输或光SCM传输。

6. 发明授权

US07212281B2 Optical fiber polarization mode dispersion measurement method and measurement device 有权
标题翻译：光纤偏振模色散测量方法及测量装置
公开(公告)号：US07212281B2
公开(公告)日：2007-05-01
申请号：US10521236
申请日：2003-07-18
申请人： Shoji Tanigawa , Tomoharu Sagawa , Masataka Ikeda , Shoichiro Matsuo , Kuniharu Himeno , Koichi Harada
发明人： Shoji Tanigawa , Tomoharu Sagawa , Masataka Ikeda , Shoichiro Matsuo , Kuniharu Himeno , Koichi Harada
IPC分类号： G01N21/00
CPC分类号： G01M11/3181
摘要： A method of measuring polarization mode dispersion of an optical fiber includes inputting linearly polarized pulse light into an optical fiber, separating the input linearly polarized light from backscattered light from the optical fiber, detecting a light intensity of the backscattered light as time series data since the generation of the pulse light, calculating a fluctuation of the detected light intensity in the time series data, and evaluating polarization mode dispersion in the optical fiber, based on the calculated fluctuation value.
摘要翻译：测量光纤的偏振模色散的方法包括将线性偏振脉冲光输入到光纤中，将输入的线性偏振光与来自光纤的反向散射光分离，从后向散射光的光强度作为时间序列数据，从产生脉冲光，计算时间序列数据中的检测光强度的波动，并且基于所计算的波动值来评估光纤中的偏振模色散。

7. 发明授权

US07062136B2 Optical fiber and optical transmission path 有权
标题翻译：光纤和光传输路径
公开(公告)号：US07062136B2
公开(公告)日：2006-06-13
申请号：US10440263
申请日：2003-05-19
申请人： Shoji Tanigawa , Shoichiro Matsuo , Kuniharu Himeno , Koichi Harada
发明人： Shoji Tanigawa , Shoichiro Matsuo , Kuniharu Himeno , Koichi Harada
IPC分类号： G02B6/22
CPC分类号： G02B6/03694 , G02B6/02247 , G02B6/02285 , G02B6/03611 , G02B6/03627 , G02B6/03644 , G02B6/03666 , G02B6/29377
摘要： Under condition that a non-circularity ratio is 5% or lower and a thermal expansion coefficient of a glass which forms the core is α1 and a thermal expansion of a glass which forms the cladding is α2, the difference of coefficients is controlled such that a formula −2.5×10−7/° C.≦α1 −α2≦1.0×10−7/° C. is satisfied so as to maintain a polarization mode dispersion to be 0.03 ps/km0.5 or lower. The difference of coefficients is further controlled such that a formula −1.5×10−7/° C.≦α1−α2≦0/° C. is satisfied so as to maintain a polarization mode dispersion to be 0.015 ps/km0.5 or lower. By doing this, birefringence is reduced by adjusting the thermal expansion coefficient in a core and a cladding; thus providing an optical fiber, and an optical transmission path using the optical fiber, having preferable PMD for high speed transmission.
摘要翻译：在非圆度比为5％以下，形成芯的玻璃的热膨胀系数为α1，形成包层的玻璃的热膨胀为α2的条件下，将系数差控制为满足公式-2.5×10 -7 /℃。<=α1 -al 2≤1.0×10 -7 -7℃/℃以保持极化模式色散为0.03ps / km <0.5或更低。进一步控制系数的差异，使得满足式-1.5×10 -7 /℃。=α1-α2 <= 0 /℃，以便保持偏振模色散为0.015ps / km以下0.5以下。通过这样做，通过调节芯和包层中的热膨胀系数来减少双折射; 从而提供一种光纤，以及使用该光纤的光传输路径，具有优选用于高速传输的PMD。

8. 发明申请

US20050259241A1 Optical fiber polarization mode dispersion measurement method and measurement device 有权
标题翻译：光纤偏振模色散测量方法及测量装置
公开(公告)号：US20050259241A1
公开(公告)日：2005-11-24
申请号：US10521236
申请日：2003-07-18
申请人： Shoji Tanigawa , Tomoharu Sagawa , Masataka Ikeda , Shoichiro Matsuo , Kuniharu Himeno , Koichi Harada
发明人： Shoji Tanigawa , Tomoharu Sagawa , Masataka Ikeda , Shoichiro Matsuo , Kuniharu Himeno , Koichi Harada
IPC分类号： G01M11/00 , G01M11/02 , G01N21/00
CPC分类号： G01M11/3181
摘要： A method of measuring polarization mode dispersion of an optical fiber includes inputting linearly polarized pulse light into an optical fiber, separating the input linearly polarized light from backscattered light from the optical fiber, detecting a light intensity of the backscattered light as time series data since the generation of the pulse light, calculating a fluctuation of the detected light intensity in the time series data, and evaluating polarization mode dispersion in the optical fiber, based on the calculated fluctuation value.
摘要翻译：测量光纤的偏振模色散的方法包括将线性偏振脉冲光输入到光纤中，将输入的线性偏振光与来自光纤的反向散射光分离，从后向散射光的光强度作为时间序列数据检测，因为产生脉冲光，计算时间序列数据中的检测光强度的波动，并且基于所计算的波动值来评估光纤中的偏振模色散。

9. 发明授权

US07606460B2 Optical fiber and transmission system, and wavelength division multiplexing system 有权
标题翻译：光纤和传输系统以及波分复用系统
公开(公告)号：US07606460B2
公开(公告)日：2009-10-20
申请号：US11738275
申请日：2007-04-20
申请人： Shoichiro Matsuo , Shoji Tanigawa , Kuniharu Himeno
发明人： Shoichiro Matsuo , Shoji Tanigawa , Kuniharu Himeno
IPC分类号： G02B6/00
CPC分类号： G02B6/03611 , G02B6/03627 , G02B6/03633 , G02B6/03644 , G02B6/0365
摘要： An optical fiber comprises a center core and a cladding located at an outer periphery of the core, wherein the core comprises at least one codoped layer made from silica glass doped with germanium and fluorine, and at least one lower-concentration codoped layer made from silica glass doped with germanium, or silica glass that is doped with germanium and fluorine wherein an amount of fluorine in the lower-concentration codoped layer is smaller than an amount of fluorine in the codoped layer.
摘要翻译：光纤包括位于芯的外周的中心芯和包层，其中芯包括由掺杂有锗和氟的二氧化硅玻璃制成的至少一个共掺层，以及由二氧化硅制成的至少一个低浓度共掺层掺杂有锗的玻璃或掺杂有锗和氟的二氧化硅玻璃，其中低浓度掺杂层中的氟的量小于共掺层中的氟的量。

10. 发明申请

US20070189699A1 OPTICAL FIBER AND TRANSMISSION SYSTEM, AND WAVELENGTH DIVISION MULTIPLEXING SYSTEM 有权
标题翻译：光纤和传输系统，以及波长分割多路复用系统
公开(公告)号：US20070189699A1
公开(公告)日：2007-08-16
申请号：US11738275
申请日：2007-04-20
申请人： Shoichiro MATSUO , Shoji Tanigawa , Kuniharu Himeno
发明人： Shoichiro MATSUO , Shoji Tanigawa , Kuniharu Himeno
IPC分类号： G02B6/00
CPC分类号： G02B6/03611 , G02B6/03627 , G02B6/03633 , G02B6/03644 , G02B6/0365
摘要： An optical fiber comprises a center core and a cladding located at an outer periphery of the core, wherein the core comprises at least one codoped layer made from silica glass doped with germanium and fluorine, and at least one lower-concentration codoped layer made from silica glass doped with germanium, or silica glass that is doped with germanium and fluorine wherein a dope amount of the fluorine is smaller than a dope amount of the fluorine in the codoped layer.
摘要翻译：光纤包括位于芯的外周的中心芯和包层，其中芯包括由掺杂有锗和氟的二氧化硅玻璃制成的至少一个共掺层，以及由二氧化硅制成的至少一个低浓度共掺层掺杂有锗的玻璃或掺杂有锗和氟的二氧化硅玻璃，其中掺杂量的氟小于共掺层中的氟的掺杂量。

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