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1. 发明授权

US06766088B2 Optical fiber and method for making the same 失效
标题翻译：光纤及其制作方法
公开(公告)号：US06766088B2
公开(公告)日：2004-07-20
申请号：US09810414
申请日：2001-03-19
申请人： Takemi Hasegawa , Masashi Onishi , Eisuke Sasaoka , Masayuki Nishimura
发明人： Takemi Hasegawa , Masashi Onishi , Eisuke Sasaoka , Masayuki Nishimura
IPC分类号： G02B602
CPC分类号： G02B6/03627 , B82Y20/00 , C03B37/01231 , C03B37/0253 , C03B37/027 , C03B37/02727 , C03B37/02763 , C03B37/02781 , C03B2203/14 , C03B2203/18 , C03B2203/36 , C03B2203/42 , C03B2205/08 , C03B2205/10 , C03B2205/20 , C03B2205/40 , C03B2205/72 , C03C25/6206 , G02B6/02033 , G02B6/02228 , G02B6/02247 , G02B6/02276 , G02B6/02366 , G02B6/02376 , G02B6/032 , G02B6/1225
摘要： An optical fiber has a section of the first kind having a chromatic dispersion not less than a given positive value x and a negative chromatic dispersion slope at a given wavelength and a section of the second kind has a chromatic dispersion not more than −x and a positive chromatic dispersion slope at the same wavelength. Another optical fiber has a chromatic dispersion higher than a positive value x and a negative chromatic dispersion slope at a given wavelength band.
摘要翻译：光纤具有第一种具有不小于给定正值x的色散和在给定波长处的负色散斜率的部分，并且第二类的部分具有不大于-x的色散和相同波长的正色散斜率。另一光纤具有高于正值x的色散和在给定波长带处的负色散斜率。

2. 发明授权

US06636677B2 Optical fiber 有权
标题翻译：光纤
公开(公告)号：US06636677B2
公开(公告)日：2003-10-21
申请号：US09793415
申请日：2001-02-27
申请人： Takemi Hasegawa , Eisuke Sasaoka , Masayuki Nishimura , Masashi Onishi
发明人： Takemi Hasegawa , Eisuke Sasaoka , Masayuki Nishimura , Masashi Onishi
IPC分类号： G02B602
CPC分类号： G02B6/02333 , C03B37/01231 , C03B37/0253 , C03B37/027 , C03B37/02727 , C03B37/02763 , C03B37/02781 , C03B2203/14 , C03B2203/18 , C03B2203/36 , C03B2203/42 , C03B2205/08 , C03B2205/10 , C03B2205/20 , C03C25/6206 , G02B6/02033 , G02B6/02228 , G02B6/02247 , G02B6/02276 , G02B6/02347 , G02B6/02357 , G02B6/02361 , G02B6/02376 , G02B6/03627
摘要： In an optical fiber composed of a core region and a cladding region surrounding the core region and having a plurality of regions made of sub mediums having refractive indices different from a refractive index of a main medium disposed in a main medium constituting this cladding region, these regions made of the sub mediums are arranged in one given or a plurality of a given circular annular regions and the centers of the regions made of the sub mediums in respective circular annular regions are arranged on the same circumference centered at the center of the core.
摘要翻译：在由芯区域和围绕芯区域的包层区域构成的光纤中，具有由构成该包层区域的主介质的折射率不同于设置在构成该包层区域的主介质的折射率的副介质的多个区域构成的光纤，由副介质制成的区域布置在给定的一个或多个给定的圆形环形区域中，并且由各个圆形环形区域中的副介质制成的区域的中心布置在以芯的中心为中心的同一圆周上。

3. 发明授权

US06526209B1 Optical fiber having improved optics and structure 有权
标题翻译：光纤具有改进的光学和结构
公开(公告)号：US06526209B1
公开(公告)日：2003-02-25
申请号：US09709406
申请日：2000-11-13
申请人： Takemi Hasegawa , Eisuke Sasaoka , Masayuki Nishimura , Masashi Onishi
发明人： Takemi Hasegawa , Eisuke Sasaoka , Masayuki Nishimura , Masashi Onishi
IPC分类号： G02B602
CPC分类号： G02B6/02276 , B82Y20/00 , C03B37/01231 , C03B37/0253 , C03B37/027 , C03B37/02727 , C03B37/02763 , C03B37/02781 , C03B2203/14 , C03B2203/18 , C03B2203/36 , C03B2203/42 , C03B2205/08 , C03B2205/10 , C03B2205/20 , C03B2205/40 , C03B2205/72 , C03C25/6206 , G02B6/02 , G02B6/02033 , G02B6/02228 , G02B6/02247 , G02B6/02261 , G02B6/02333 , G02B6/02357 , G02B6/02366 , G02B6/02376 , G02B6/032 , G02B6/1225
摘要： In an optical fiber comprising a core region, an inner cladding region, and an outer cladding region which extend along its fiber axis, the average refractive index n0 of core region, the average refractive index n1 of inner cladding region, and the average refractive index n2 of outer cladding region satisfying the relationship of n1
摘要翻译：在包括芯区域，内包层区域和沿着其纤维轴线延伸的外包层区域的光纤中，芯区域的平均折射率n 0，内包层区域的平均折射率n1和平均折射率满足n1

4. 发明授权

US07484387B2 Method of making a microstructured optical fiber 失效
标题翻译：制造微结构光纤的方法
公开(公告)号：US07484387B2
公开(公告)日：2009-02-03
申请号：US10796047
申请日：2004-03-10
申请人： Takemi Hasegawa , Masashi Onishi , Eisuke Sasaoka , Masayuki Nishimura
发明人： Takemi Hasegawa , Masashi Onishi , Eisuke Sasaoka , Masayuki Nishimura
IPC分类号： C03B37/027
CPC分类号： G02B6/03627 , B82Y20/00 , C03B37/01231 , C03B37/0253 , C03B37/027 , C03B37/02727 , C03B37/02763 , C03B37/02781 , C03B2203/14 , C03B2203/18 , C03B2203/36 , C03B2203/42 , C03B2205/08 , C03B2205/10 , C03B2205/20 , C03B2205/40 , C03B2205/72 , C03C25/6206 , G02B6/02033 , G02B6/02228 , G02B6/02247 , G02B6/02276 , G02B6/02366 , G02B6/02376 , G02B6/032 , G02B6/1225
摘要： An optical fiber has a section of the first kind having a chromatic dispersion not less than a given positive value x and a negative chromatic dispersion slope at a given wavelength and a section of the second kind has a chromatic dispersion not more than −x and a positive chromatic dispersion slope at the same wavelength. Another optical fiber has a chromatic dispersion higher than a positive value x and a negative chromatic dispersion slope at a given wavelength band.
摘要翻译：光纤具有第一种具有不小于给定正值x的色散和在给定波长处的负色散斜率的部分，并且第二类的部分具有不大于-x的色散和相同波长的正色散斜率。另一光纤具有高于正值x的色散和在给定波长带处的负色散斜率。

5. 发明授权

US07153034B2 Method of constructing an optical transmission line and an optical transmission line 失效
标题翻译：光传输线路和光传输线路的构成方法
公开(公告)号：US07153034B2
公开(公告)日：2006-12-26
申请号：US10821190
申请日：2004-04-09
申请人： Eisuke Sasaoka , Masashi Onishi , Takemi Hasegawa , Masayuki Nishimura
发明人： Eisuke Sasaoka , Masashi Onishi , Takemi Hasegawa , Masayuki Nishimura
IPC分类号： G01N21/00 , H04B10/12
CPC分类号： H04B10/25253 , G02B6/29376
摘要： The present invention discloses an optical transmission line constructing method comprising the steps of connecting a plurality of optical fibers differing from each other in terms of a transmission characteristic; making inspection light incident on an entrance end of the connected plurality of optical fibers; detecting, on the entrance end side, respective return light components of the inspection light occurring at individual positions of the plurality of optical fibers in its longitudinal direction; evaluating a characteristic information distribution of return light in the longitudinal direction of the plurality of optical fibers; and constructing an optical transmission line according to a result of the evaluation.
摘要翻译：本发明公开了一种光传输线路构成方法，其特征在于，包括以传输特性连接多个彼此不同的光纤的步骤; 使检查光入射到连接的多根光纤的入口端; 在所述入射端侧检测在所述多根光纤的长度方向的各个位置处发生的检查光的各自的返回光分量; 评估所述多根光纤的长度方向上的返回光的特征信息分布; 并根据评估结果构建光传输线。

6. 发明授权

US06718105B2 Optical fiber 有权
标题翻译：光纤
公开(公告)号：US06718105B2
公开(公告)日：2004-04-06
申请号：US09790986
申请日：2001-02-23
申请人： Takemi Hasegawa , Eisuke Sasaoka , Masayuki Nishimura
发明人： Takemi Hasegawa , Eisuke Sasaoka , Masayuki Nishimura
IPC分类号： G02B602
CPC分类号： G02B6/02357 , G02B6/02004 , G02B6/02261
摘要： In an optical fiber including a core region and a cladding region surrounding said core region in a cross section and having a cross-sectional structure in which a plurality of regions constituted by sub mediums are arranged in main mediums, at least one of refractive indices of the main mediums and the sub mediums are changed in a radial direction.
摘要翻译：在包括芯部区域和围绕所述芯部区域的包层区域的光纤中，在横截面中具有横截面结构的多个区域结构，其中由主介质构成多个由副介质构成的区域，折射率为主介质和副介质在径向方向上变化。

7. 发明授权

US06606440B2 Microstructured optical fiber 有权
标题翻译：微结构光纤
公开(公告)号：US06606440B2
公开(公告)日：2003-08-12
申请号：US09842053
申请日：2001-04-26
申请人： Takemi Hasegawa , Eisuke Sasaoka , Masayuki Nishimura
发明人： Takemi Hasegawa , Eisuke Sasaoka , Masayuki Nishimura
IPC分类号： G02B602
CPC分类号： G02B6/02328 , G02B6/02338 , G02B6/02361 , G02B6/266
摘要： In an optical fiber having a core region and a cladding region which surrounds the core region, wherein a plurality of regions made of sub mediums having refractive index different from that of the main medium constituting the cladding region are spaced apart in cross section of the cladding region and the mean refractive index of the core region is lower than that of the cladding region, the sub-medium regions are regularly arranged in the radial direction of said optical fiber such that the light having given wavelength, propagation coefficient and electric field distribution propagates along the fiber axis and has not less than 50% of a total propagating power in the core region, and this arrangement does not have translational symmetry in cross section.
摘要翻译：在具有芯区域和围绕芯区域的包层区域的光纤中，其中由覆盖区域的主介质的折射率不同的副介质的多个区域在包层的横截面中间隔开芯区域的平均折射率低于包层区域的平均折射率，子介质区域规则地布置在所述光纤的径向方向上，使得具有给定波长，传播系数和电场分布的光传播沿着纤维轴线具有不小于核心区域中的总传播功率的50％，并且该布置在横截面中不具有平移对称性。

8. 发明授权

US06571045B2 Microstructured optical fiber 有权
标题翻译：微结构光纤
公开(公告)号：US06571045B2
公开(公告)日：2003-05-27
申请号：US09764148
申请日：2001-01-19
申请人： Takemi Hasegawa , Eisuke Sasaoka , Masayuki Nishimura
发明人： Takemi Hasegawa , Eisuke Sasaoka , Masayuki Nishimura
IPC分类号： G02B602
CPC分类号： G02B6/02338 , B82Y20/00 , G02B6/02004 , G02B6/02228 , G02B6/02261 , G02B6/02347 , G02B6/02361 , G02B6/03611
摘要： In an optical fiber having a core region and a cladding region, surrounding the core region, comprising a main medium having different refractive indices from the main medium and spaced apart in the main medium, the core region comprises a central core region having a hollow portion disposed at the center of the core region and an outer core region surrounding the central core region having a mean refractive index higher than the central core region, and the core region has a higher mean refractive index than the cladding region.
摘要翻译：在具有芯区域和包层区域的光纤中，围绕芯区域，包括与主介质具有不同折射率且在主介质中间隔的主介质，芯区域包括具有中空部分的中心芯区域设置在芯区域的中心，并且包围中心芯区域的外芯区域具有高于中心芯区域的平均折射率，并且芯区域具有比包层区域更高的平均折射率。

9. 发明授权

US06859598B2 Microstructured optical fiber 失效
标题翻译：微结构光纤
公开(公告)号：US06859598B2
公开(公告)日：2005-02-22
申请号：US09764254
申请日：2001-01-19
申请人： Takemi Hasegawa , Eisuke Sasaoka , Masayuki Nishimura
发明人： Takemi Hasegawa , Eisuke Sasaoka , Masayuki Nishimura
IPC分类号： G02B6/02 , G02B6/20
CPC分类号： G02B6/02347 , G02B6/02028 , G02B6/02261 , G02B6/0228 , G02B6/02352 , G02B6/02357 , G02B6/02361 , G02B6/02366 , G02B6/03644
摘要： In an optical fiber including a core region and cladding regions of not less than three layers which surrounds the core region in order, each of said cladding regions has a mean refractive index different from those of the adjacents regions,at least one of the cladding regions has a lower mean refractive index than both adjacent regions, and at least one cladding region is provided with a plurality of sub medium regions each having a refractive index lower than a main medium constituting this cladding region.
摘要翻译：在包括芯区域的光纤和依次包围芯区域的不少于三层的包层区域的光纤中，每个所述包层区域具有与邻接区域不同的平均折射率，至少一个包层区域具有比两个相邻区域更低的平均折射率，并且至少一个包层区域设置有多个次级介质区域，每个子介质区域的折射率低于构成该包层区域的主介质。

10. 发明授权

US06952309B1 Optical amplifier and optical amplification method 失效
标题翻译：光放大器和光放大法
公开(公告)号：US06952309B1
公开(公告)日：2005-10-04
申请号：US09667576
申请日：2000-09-22
申请人： Tetsufumi Tsuzaki , Masayuki Nishimura , Masayuki Shigematsu , Hitoshi Hatayama , Eisuke Sasaoka
发明人： Tetsufumi Tsuzaki , Masayuki Nishimura , Masayuki Shigematsu , Hitoshi Hatayama , Eisuke Sasaoka
IPC分类号： G02F1/01 , G02F1/313 , H01S3/00 , H01S3/067 , H01S3/10 , H01S3/13
CPC分类号： H01S3/06758 , H01S3/06754 , H01S3/10007 , H01S3/10023 , H01S3/1301 , H01S2301/04 , H04B10/2941 , H04B10/2942 , H04B10/296
摘要： A optical filter has a loss spectrum whose gradient dL/dλ of a loss L (dB) with respect to the wavelength λ (nm) is variable in the wavelength band of multiplexed signal light. A control circuit detects each power of signal light components demultiplexed by an optical coupler and controls the power of optical pumping light to be supplied to an optical amplification section from an optical pumping light sources such that the power of output signal light has a predetermined target value. The control circuit also controls the gradient dL/dλ of the optical filter on the basis of powers of the signal light components.
摘要翻译：滤光器具有损耗谱，其相对于波长λ（nm）的损耗L（dB）的梯度dL /dlλ在复用信号光的波长带中是可变的。控制电路检测由光耦合器解复用的信号光分量的每个功率，并且控制从光泵浦光源提供给光放大部分的光泵浦光的功率，使得输出信号光的功率具有预定的目标值。控制电路还基于信号光分量的功率来控制滤光器的梯度dL / dl。

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