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1. 发明授权

US06542666B2 Optical component 失效
公开(公告)号：US06542666B2
公开(公告)日：2003-04-01
申请号：US09804577
申请日：2001-03-12
申请人： Toshiaki Tsuda , Shigehito Yodo , Kazuyo Mizuno , Yu Mimura , Toshihiko Ohta , Yoshihiro Emori , Shu Namiki
发明人： Toshiaki Tsuda , Shigehito Yodo , Kazuyo Mizuno , Yu Mimura , Toshihiko Ohta , Yoshihiro Emori , Shu Namiki
IPC分类号： G02B634
CPC分类号： H01S3/067 , H01S3/10023
摘要： Wavelength multiplex transmission is realized in which the temperature dependency of an EDFA is compensated for in relation to the wavelengths which are used. A first and a second long-period grating which have different periods from each other are formed in an optical fiber, ensuring that the peak wavelength of a waveform representing an optical transmission loss characteristic of the first long-period grating side is located on the shorter wavelength side than a transmission band and a peak wavelength of a waveform representing an optical transmission loss characteristic of the second long-period grating side is located on the longer wavelength side within the transmission band.

2. 发明申请

US20090273784A1 Stokes parameter measurement device and method 失效
标题翻译：斯托克斯参数测量装置及方法
公开(公告)号：US20090273784A1
公开(公告)日：2009-11-05
申请号：US11987714
申请日：2007-12-04
申请人： Mieko Yamagaki , Yu Mimura , Kazuyou Mizuno , Takeshi Takagi
发明人： Mieko Yamagaki , Yu Mimura , Kazuyou Mizuno , Takeshi Takagi
IPC分类号： G01J4/00
CPC分类号： G01J4/00
摘要： The invention provides a Stokes parameter measurement device and Stokes parameter measurement method that enable high-precision measurement. The Stokes parameter measurement device comprises a polarization splitting device which comprises an optical element formed of a birefringent crystal material and which, by means of the optical element, splits signal light to be measured into a plurality of polarized light beams and adjusts the polarization state of one or more among the plurality of polarized light beams, and a light-receiving portion for performing photoelectric conversion of an optical component of the signal light split by and emitted from the polarization splitting device.
摘要翻译：本发明提供了能够进行高精度测量的斯托克斯参数测量装置和斯托克斯参数测量方法。斯托克斯参数测量装置包括偏振分离装置，其包括由双折射晶体材料形成的光学元件，并且通过光学元件将待测量的信号光分解为多个偏振光束并调节偏振态多个偏振光束中的一个或多个，以及用于对由偏振分离装置分离和发射的信号光的光学分量执行光电转换的光接收部分。

3. 发明申请

US20080225276A1 SYSTEM FOR MEASURING THE WAVELENGTH DISPERSION AND NONLINEAR COEFFICIENT OF AN OPTICAL FIBER 有权
标题翻译：用于测量光纤的波长分散度和非线性系数的系统
公开(公告)号：US20080225276A1
公开(公告)日：2008-09-18
申请号：US12029626
申请日：2008-02-12
申请人： Masateru Tadakuma , Yu Mimura , Misao Sakano , Osamu Aso , Takeshi Nakajima , Katsutoshi Takahashi
发明人： Masateru Tadakuma , Yu Mimura , Misao Sakano , Osamu Aso , Takeshi Nakajima , Katsutoshi Takahashi
IPC分类号： G01N21/00
CPC分类号： G01M11/3172 , G01M11/31 , G01M11/3181 , G01M11/319 , G01M11/39
摘要： A method of simultaneously specifying the wavelength dispersion and nonlinear coefficient of an optical fiber. Pulsed probe light and pulsed pump light are first caused to enter an optical fiber to be measured. Then, the power oscillation of the back-scattered light of the probe light or idler light generated within the optical fiber is measured. Next, the instantaneous frequency of the measured power oscillation is obtained, and the dependency of the instantaneous frequency relative to the power oscillation of the pump light in a longitudinal direction of the optical fiber is obtained. Thereafter, a rate of change in the longitudinal direction between phase-mismatching conditions and nonlinear coefficient of the optical fiber is obtained from the dependency of the instantaneous frequency. And based on the rate of change, the longitudinal wavelength-dispersion distribution and longitudinal nonlinear-coefficient distribution of the optical fiber are simultaneously specified.
摘要翻译：一种同时指定光纤的波长色散和非线性系数的方法。首先引入脉冲探头光和脉冲泵浦光，进入要测量的光纤。然后，测量在光纤内产生的探测光或空载光的背散射光的功率振荡。接下来，获得测量的功率振荡的瞬时频率，并且获得瞬时频率相对于光纤在纵向方向上的功率振荡的依赖性。此后，根据瞬时频率的依赖性，获得相位不匹配条件和光纤的非线性系数之间的纵向变化率。并且基于变化率，同时规定了光纤的纵向波长色散分布和纵向非线性系数分布。

4. 发明授权

US07003202B2 Method and system for measuring the wavelength dispersion and nonlinear coefficient of an optical fiber, method of manufacturing optical fibers, method of measuring wavelength-dispersion distribution, method of compensating for measurement errors, and method of specifying conditions of measurement 有权
标题翻译：用于测量光纤的波长色散和非线性系数的方法和系统，光纤的制造方法，测量波长色散分布的方法，补偿测量误差的方法以及指定测量条件的方法
公开(公告)号：US07003202B2
公开(公告)日：2006-02-21
申请号：US10832875
申请日：2004-04-27
申请人： Masateru Tadakuma , Yu Mimura , Misao Sakano , Osamu Aso , Takeshi Nakajima , Katsutoshi Takahashi
发明人： Masateru Tadakuma , Yu Mimura , Misao Sakano , Osamu Aso , Takeshi Nakajima , Katsutoshi Takahashi
IPC分类号： G01N21/00
CPC分类号： G01M11/3172 , G01M11/31 , G01M11/3181 , G01M11/319 , G01M11/39
摘要： A method of simultaneously specifying the wavelength dispersion and nonlinear coefficient of an optical fiber. Pulsed probe light and pulsed pump light are first caused to enter an optical fiber to be measured. Then, the power oscillation of the back-scattered light of the probe light or idler light generated within the optical fiber is measured. Next, the instantaneous frequency of the measured power oscillation is obtained, and the dependency of the instantaneous frequency relative to the power oscillation of the pump light in a longitudinal direction of the optical fiber is obtained. Thereafter, a rate of change in the longitudinal direction between phase-mismatching conditions and nonlinear coefficient of the optical fiber is obtained from the dependency of the instantaneous frequency. And based on the rate of change, the longitudinal wavelength-dispersion distribution and longitudinal nonlinear-coefficient distribution of thee optical fiber are simultaneously specified.
摘要翻译：一种同时指定光纤的波长色散和非线性系数的方法。首先引入脉冲探头光和脉冲泵浦光，进入要测量的光纤。然后，测量在光纤内产生的探测光或空载光的背散射光的功率振荡。接下来，获得测量的功率振荡的瞬时频率，并且获得瞬时频率相对于光纤在纵向方向上的功率振荡的依赖性。此后，根据瞬时频率的依赖性，获得相位不匹配条件和光纤的非线性系数之间的纵向变化率。并根据变化率，同时规定了光纤的纵向波长色散分布和纵向非线性系数分布。

5. 发明申请

US20060029342A1 Method and system for measuring the wavelength dispersion and nonlinear coefficient of an optical fiber, method of manufacturing optical fibers, method of measuring wavelength-dispersion distribution, method of compensating for measurement errors, and method of specifying conditions of measurement 有权
公开(公告)号：US20060029342A1
公开(公告)日：2006-02-09
申请号：US11249808
申请日：2005-10-13
申请人： Masateru Tadakuma , Yu Mimura , Misao Sakano , Osamu Aso , Takeshi Nakajima , Katsutoshi Takahashi
发明人： Masateru Tadakuma , Yu Mimura , Misao Sakano , Osamu Aso , Takeshi Nakajima , Katsutoshi Takahashi
IPC分类号： G02B6/00
CPC分类号： G01M11/3172 , G01M11/31 , G01M11/3181 , G01M11/319 , G01M11/39
摘要： A method of simultaneously specifying the wavelength dispersion and nonlinear coefficient of an optical fiber. Pulsed probe light and pulsed pump light are first caused to enter an optical fiber to be measured. Then, the power oscillation of the back-scattered light of the probe light or idler light generated within the optical fiber is measured. Next, the instantaneous frequency of the measured power oscillation is obtained, and the dependency of the instantaneous frequency relative to the power oscillation of the pump light in a longitudinal direction of the optical fiber is obtained. Thereafter, a rate of change in the longitudinal direction between phase-mismatching conditions and nonlinear coefficient of the optical fiber is obtained from the dependency of the instantaneous frequency. And based on the rate of change, the longitudinal wavelength-dispersion distribution and longitudinal nonlinear-coefficient distribution of the optical fiber are simultaneously specified.

6. 发明授权

US07679744B2 Stokes parameter measurement device and method 失效
标题翻译：斯托克斯参数测量装置及方法
公开(公告)号：US07679744B2
公开(公告)日：2010-03-16
申请号：US11987714
申请日：2007-12-04
申请人： Mieko Yamagaki , Yu Mimura , Kazuyou Mizuno , Takeshi Takagi
发明人： Mieko Yamagaki , Yu Mimura , Kazuyou Mizuno , Takeshi Takagi
IPC分类号： G01J4/00
CPC分类号： G01J4/00
摘要： The invention provides a Stokes parameter measurement device and Stokes parameter measurement method that enable high-precision measurement. The Stokes parameter measurement device comprises a polarization splitting device which comprises an optical element formed of a birefringent crystal material and which, by means of the optical element, splits signal light to be measured into a plurality of polarized light beams and adjusts the polarization state of one or more among the plurality of polarized light beams, and a light-receiving portion for performing photoelectric conversion of an optical component of the signal light split by and emitted from the polarization splitting device.
摘要翻译：本发明提供了能够进行高精度测量的斯托克斯参数测量装置和斯托克斯参数测量方法。斯托克斯参数测量装置包括偏振分离装置，其包括由双折射晶体材料形成的光学元件，并且通过光学元件将待测量的信号光分解为多个偏振光束并调节偏振态多个偏振光束中的一个或多个，以及用于对由偏振分离装置分离和发射的信号光的光学分量执行光电转换的光接收部分。

7. 发明申请

US20070035722A1 System for measuring the wavelength dispersion and nonlinear coefficient of an optical fiber 有权
标题翻译：用于测量光纤的波长色散和非线性系数的系统
公开(公告)号：US20070035722A1
公开(公告)日：2007-02-15
申请号：US11580473
申请日：2006-10-13
申请人： Masateru Tadakuma , Yu Mimura , Misao Sakano , Osamu Aso , Takeshi Nakajima , Katsutoshi Takahashi
发明人： Masateru Tadakuma , Yu Mimura , Misao Sakano , Osamu Aso , Takeshi Nakajima , Katsutoshi Takahashi
IPC分类号： G01N21/00
CPC分类号： G01M11/3172 , G01M11/31 , G01M11/3181 , G01M11/319 , G01M11/39
摘要： A method of simultaneously specifying the wavelength dispersion and nonlinear coefficient of an optical fiber. Pulsed probe light and pulsed pump light are first caused to enter an optical fiber to be measured. Then, the power oscillation of the back-scattered light of the probe light or idler light generated within the optical fiber is measured. Next, the instantaneous frequency of the measured power oscillation is obtained, and the dependency of the instantaneous frequency relative to the power oscillation of the pump light in a longitudinal direction of the optical fiber is obtained. Thereafter, a rate of change in the longitudinal direction between phase-mismatching conditions and nonlinear coefficient of the optical fiber is obtained from the dependency of the instantaneous frequency. And based on the rate of change, the longitudinal wavelength-dispersion distribution and longitudinal nonlinear-coefficient distribution of the optical fiber are simultaneously specified.
摘要翻译：一种同时指定光纤的波长色散和非线性系数的方法。首先引入脉冲探头光和脉冲泵浦光，进入要测量的光纤。然后，测量在光纤内产生的探测光或空载光的背散射光的功率振荡。接下来，获得测量的功率振荡的瞬时频率，并且获得瞬时频率相对于光纤在纵向方向上的功率振荡的依赖性。此后，根据瞬时频率的依赖性，获得相位不匹配条件和光纤的非线性系数之间的纵向变化率。并且基于变化率，同时规定了光纤的纵向波长色散分布和纵向非线性系数分布。

8. 发明授权

US06933001B2 Optical filter and method of manufacturing the same 失效
标题翻译：光学滤波器及其制造方法
公开(公告)号：US06933001B2
公开(公告)日：2005-08-23
申请号：US10047459
申请日：2002-01-14
申请人： Abe Hiroyuki , Yu Mimura , Kazuyou Mizuno
发明人： Abe Hiroyuki , Yu Mimura , Kazuyou Mizuno
IPC分类号： C23C14/54 , G02B1/10 , G02B1/11 , G02B5/28 , C23C16/52 , G02B5/20
CPC分类号： G02B1/10 , C23C14/547 , G02B5/285
摘要： The optical thickness of a film formed on a substrate is controlled precisely to manufacture an optical filter having an accurate optical thickness. Time is counted during a film being formed on a substrate to note time points t with respect to a reference time set in advance. At least one of two optical characteristics of energy transmittance and energy reflectance when the film being formed on the substrate is irradiated with monitoring light is expressed by a function f(t) of the time points t based on a theoretical formula of the optical characteristic. The optical characteristic is measured by irradiating the film with the monitoring light at the time points t. A designed thickness achieving time at which the optical thickness of the film designed thickness is predicted. The film formation is stopped at the designed thickness achieving time, thereby obtaining the optical filter.
摘要翻译：精确地控制形成在基板上的膜的光学厚度，以制造具有精确的光学厚度的滤光器。在基板上形成胶片期间计数时间，以便相对于预先设定的参考时间来记录时间点t。基于光学特性的理论公式，通过用监视光照射在基板上形成的膜的能量透射率和能量反射率的两个光学特性中的至少一个由时间点t的函数f（t）表示。通过在时间点t用监测光照射膜来测量光学特性。预测薄膜设计厚度的光学厚度的设计厚度实现时间。在设计的厚度实现时间停止成膜，从而获得滤光器。

9. 发明授权

US07869014B2 System for measuring the wavelength dispersion and nonlinear coefficient of an optical fiber 有权
标题翻译：用于测量光纤的波长色散和非线性系数的系统
公开(公告)号：US07869014B2
公开(公告)日：2011-01-11
申请号：US12029626
申请日：2008-02-12
申请人： Masateru Tadakuma , Yu Mimura , Misao Sakano , Osamu Aso , Takeshi Nakajima , Katsutoshi Takahashi
发明人： Masateru Tadakuma , Yu Mimura , Misao Sakano , Osamu Aso , Takeshi Nakajima , Katsutoshi Takahashi
IPC分类号： G01N21/00
CPC分类号： G01M11/3172 , G01M11/31 , G01M11/3181 , G01M11/319 , G01M11/39
摘要： A method of simultaneously specifying the wavelength dispersion and nonlinear coefficient of an optical fiber. Pulsed probe light and pulsed pump light are first caused to enter an optical fiber to be measured. Then, the power oscillation of the back-scattered light of the probe light or idler light generated within the optical fiber is measured. Next, the instantaneous frequency of the measured power oscillation is obtained, and the dependency of the instantaneous frequency relative to the power oscillation of the pump light in a longitudinal direction of the optical fiber is obtained. Thereafter, a rate of change in the longitudinal direction between phase-mismatching conditions and nonlinear coefficient of the optical fiber is obtained from the dependency of the instantaneous frequency. And based on the rate of change, the longitudinal wavelength-dispersion distribution and longitudinal nonlinear-coefficient distribution of the optical fiber are simultaneously specified.
摘要翻译：一种同时指定光纤的波长色散和非线性系数的方法。首先引入脉冲探头光和脉冲泵浦光，进入要测量的光纤。然后，测量在光纤内产生的探测光或空载光的背散射光的功率振荡。接下来，获得测量的功率振荡的瞬时频率，并且获得瞬时频率相对于光纤在纵向方向上的功率振荡的依赖性。此后，根据瞬时频率的依赖性，获得相位不匹配条件和光纤的非线性系数之间的纵向变化率。并且基于变化率，同时规定了光纤的纵向波长色散分布和纵向非线性系数分布。

10. 发明授权

US07502540B2 Optical fiber and optical transmission medium 有权
标题翻译：光纤和光传输介质
公开(公告)号：US07502540B2
公开(公告)日：2009-03-10
申请号：US11815243
申请日：2006-09-13
申请人： Ryo Miyabe , Yu Mimura
发明人： Ryo Miyabe , Yu Mimura
IPC分类号： G02B6/02 , G02B6/36
CPC分类号： G02B6/02376 , G02B6/02352
摘要： An optical fiber includes a core region and a cladding region. The cladding region includes a first cladding region on an outer circumference of the core region, the first cladding region including a main-medium region and a sub-medium region having a refractive index lower than a refractive index of the main-medium region. The sub-medium region includes inner sub-medium regions arranged at four folds rotationally symmetric centering on the core region, and outer sub-medium regions arranged at four folds rotationally symmetric centering on the core region on an outer side of the inner sub-medium regions.
摘要翻译：光纤包括芯区域和包层区域。包层区域包括在芯区域的外周上的第一包层区域，第一包层区域包括主介质区域和具有低于主介质区域的折射率的折射率的子介质区域。子介质区域包括以核心区域为中心旋转对称布置的四个折叠的内部子介质区域，以及以内侧子介质的外侧上的核心区域为中心的四个折叠方式布置的外部子介质区域地区。

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