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1. 发明授权

US06868213B2 Optical fiber and production method therefor 有权
标题翻译：光纤及其制作方法
公开(公告)号：US06868213B2
公开(公告)日：2005-03-15
申请号：US10121724
申请日：2002-04-15
申请人： Eisuke Sasaoka , Takemi Hasegawa , Masashi Onishi , Shinji Ishikawa
发明人： Eisuke Sasaoka , Takemi Hasegawa , Masashi Onishi , Shinji Ishikawa
IPC分类号： G02B6/02 , C03B37/15 , G02B6/032
CPC分类号： G02B6/02328 , C03B37/15 , C03B2203/16 , G02B6/02361 , G02B6/02366 , G02B6/02376 , G02B6/02385
摘要： The present invention provides an optical fiber which has a hollow portion extending along the axis and which reduces degradation of the optical characteristics, and a production method thereof. An optical fiber includes a hollow core portion, and a cladding portion which surrounds the hollow core portion. The refractive index of the hollow core portion is lower than that of the cladding portion. The hollow core portion is closed at both ends of the optical fiber so as to form sealed portions. The sealed portions are formed by, for example, heating the optical fiber and softening the cladding portion. This prevents foreign material and the like from entering the hollow core portion. Ferrules of optical connectors are attached to both end faces of the optical fiber.
摘要翻译：本发明提供一种光纤，该光纤具有沿轴线延伸的中空部分，并且减少了光学特性的劣化及其制造方法。光纤包括中空芯部分和围绕中空芯部分的包层部分。中空芯部的折射率低于包层部的折射率。中空芯部在光纤的两端封闭，形成密封部分。密封部分通过例如加热光纤并使包层部分软化而形成。这防止异物等进入中空芯部。光连接器的套圈连接到光纤的两个端面。

2. 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。

3. 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。

4. 发明授权

US06791744B2 Raman amplification optical fiber, optical fiber coil, raman amplifier, and optical communication system 有权
标题翻译：拉曼放大光纤，光纤线圈，拉曼放大器和光通信系统
公开(公告)号：US06791744B2
公开(公告)日：2004-09-14
申请号：US10086833
申请日：2002-03-04
申请人： Eisuke Sasaoka , Motoki Kakui , Masashi Onishi , Toshiki Tanaka , Takao Naito
发明人： Eisuke Sasaoka , Motoki Kakui , Masashi Onishi , Toshiki Tanaka , Takao Naito
IPC分类号： H01S300
CPC分类号： G02B6/02028 , G02B6/02242 , G02B6/02252 , G02B6/03627 , G02B6/4457 , H01S3/06716 , H01S3/06725 , H01S3/06729 , H01S3/302 , H04B10/2916
摘要： The present invention relates to a Raman amplification optical fiber and the like comprising a structure which can Raman-amplify signal light including a plurality of wavelength components at a high efficiency and effectively restrain signal waveforms from deteriorating due to influences of nonlinear optical phenomena, while improving the degree of freedom in the design of optical fiber transmission lines and Raman amplifiers. As characteristics at each wavelength of signal light, the Raman amplification optical fiber has a chromatic dispersion with an absolute value of 6 ps/nm/km or more but 20 ps/nm/km or less, and an effective area Aeff of 20 &mgr;m2 or less, preferably less than 15 &mgr;m2. More preferably, as a characteristic at each wavelength of signal light, the Raman amplification optical fiber has a Raman gain coefficient GR/Aeff of 0.005 (W·m)−1 or more.
摘要翻译：拉曼放大光纤等技术领域本发明涉及一种能够高效率地拉曼放大包含多个波长成分的信号光的结构的拉曼放大用光纤等，并且能够有效地抑制由于非线性光学现象的影响而使信号波形恶化，光纤传输线和拉曼放大器设计的自由度。作为信号光的各波长的特性，拉曼放大光纤具有绝对值为6ps / nm / km以上且20ps / nm / km以下的色散，有效面积Aeff为20μm， 2>以下，优选小于15μm2。更优选地，作为信号光的每个波长的特性，拉曼放大光纤具有0.005（W.m）-1以上的拉曼增益系数GR / Aeff。

5. 发明授权

US06546180B1 Coiled optical assembly and fabricating method for the same 失效
标题翻译：卷绕光学组件及其制造方法
公开(公告)号：US06546180B1
公开(公告)日：2003-04-08
申请号：US09240690
申请日：1999-02-02
申请人： Yasushi Koyano , Eisuke Sasaoka , Shigeru Tanaka , Kohei Kobayashi , Masashi Onishi
发明人： Yasushi Koyano , Eisuke Sasaoka , Shigeru Tanaka , Kohei Kobayashi , Masashi Onishi
IPC分类号： G02B600
CPC分类号： G02B6/4457 , G02B6/02261 , G02B6/02395 , G02B6/03627 , H01S3/06704
摘要： After a wide-band DCF is wound around a bobbin to form an optical fiber coil 32, the latter is removed from the bobbin and placed into a bundle state (the state where the increase in transmission loss in the wavelength band of 1.55 &mgr;m caused by distortions in winding is reduced by 0.1 dB/km or more) released from distortions in winding. A resin 42 is used as a coil-tidying member so as to secure the optical fiber coil 32 to a storage case 40 at four positions. Both ends of the optical fiber coil 32 are connected to pigtail fibers at fusion-splicing parts 44; respectively. Even when the storage case 40 is closed with a lid after the optical fiber coil 32 is secured to the storage case 40 with the resin 42, there remain interstices within the bundle of the optical fiber coil 32 and a space between the optical fiber coil 32 and the storage case 40. As a result, even when the optical fiber coil 32 in a bundle state is accommodated in the storage case 40, transmission loss and the like would not increase.
摘要翻译：在宽带DCF缠绕在线轴上以形成光纤线圈32之后，将其从线轴上取下并放置成捆状态（由1.55μm的波长带的传输损耗的增加引起的状态绕组失真减少了0.1 dB / km以上）。树脂42用作线圈整理构件，以将光纤线圈32固定在四个位置处的存储盒40上。光纤线圈32的两端在熔接部44连接到尾纤; 分别。即使当光纤线圈32用树脂42固定在存储盒40上之后，当用盖子封闭存储盒40时，在光纤线圈32的束内仍然有空隙，并且光纤线圈32之间的空间结果，即使束状态的光纤线圈32被容纳在收容箱40中，传输损耗等也不会增加。

6. 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。

7. 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。

8. 发明授权

US06532331B1 Single-mode optical fiber floor long haul transmission 失效
标题翻译：单模光纤地板长途传输
公开(公告)号：US06532331B1
公开(公告)日：2003-03-11
申请号：US09698105
申请日：2000-10-30
申请人： Takatoshi Kato , Masashi Onishi , Eisuke Sasaoka
发明人： Takatoshi Kato , Masashi Onishi , Eisuke Sasaoka
IPC分类号： G02B602
CPC分类号： G02B6/03644 , G02B6/02014 , G02B6/02271 , G02B6/0283 , G02B6/03611 , G02B6/03627
摘要： The present invention relates to an optical fiber comprising a structure which effectively suppresses the occurrence of nonlinear phenomena without increasing transmission loss such as macrobending loss. The optical fiber according to the present invention comprises, radially in succession from the center axis thereof, a center region having a predetermined refractive index, a first annular region having a higher refractive index than the center region, and a second annular region doped with fluorine and having a lower refractive index than the first annular region. In particular, this optical fiber has an effective area of 70 &mgr;m2 or more with respect to light having a wavelength of 1550 nm, whereas the fluorine contents in the second annular region is adjusted such that the refractive index thereof decreases with distance from the center of the optical fiber.
摘要翻译：本发明涉及一种光纤，其包括有效抑制非线性现象的发生而不增加诸如宏弯损耗的传输损耗的结构。根据本发明的光纤从其中心轴径向连续地包括具有预定折射率的中心区域，具有比中心区域更高的折射率的第一环形区域和掺杂有氟的第二环形区域并且具有比第一环形区域更低的折射率。特别地，该光纤相对于波长为1550nm的光具有70mum2以上的有效面积，而第二环状区域中的氟含量被调整为使得其折射率随着距离光纤。

9. 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

10. 发明授权

US07043131B2 Optical device and a making method thereof 失效
公开(公告)号：US07043131B2
公开(公告)日：2006-05-09
申请号：US10217433
申请日：2002-08-14
申请人： Yasushi Koyano , Eisuke Sasaoka , Shigeru Tanaka , Kohei Kobayashi , Masashi Onishi , Kenji Tamano , Takashi Fujii
发明人： Yasushi Koyano , Eisuke Sasaoka , Shigeru Tanaka , Kohei Kobayashi , Masashi Onishi , Kenji Tamano , Takashi Fujii
IPC分类号： G02B6/00
CPC分类号： G02B6/4457 , G02B6/02214 , G02B6/02261 , G02B6/02395 , G02B6/03627 , Y10T428/2933
摘要： After a wide-band DCF is wound around a bobbin to form an optical fiber coil 32, the latter is removed from the bobbin and placed into a bundle state (the state where the increase in transmission loss in the wavelength band of 1.55 μm caused by distortions in winding is reduced by 0.1 dB/km or more) released from distortions in winding. A resin 42 is used as a coil-tidying member so as to secure the optical fiber coil 32 to a storage case 40 at four positions. Both ends of the optical fiber coil 32 are connected to pigtail fibers at fusion-splicing parts 44, respectively. Even when the storage case 40 is closed with a lid after the optical fiber coil 32 is secured to the storage case 40 with the resin 42, there remain interstices within the bundle of the optical fiber coil 32 and a space between the optical fiber coil 32 and the storage case 40. As a result, even when the optical fiber coil 32 in a bundle state is accommodated in the storage case 40, transmission loss and the like would not increase.

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