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1. 发明授权

US06687439B1 Light-amplifying optical fiber and method of making the same 有权
标题翻译：光放大光纤及其制造方法
公开(公告)号：US06687439B1
公开(公告)日：2004-02-03
申请号：US09674071
申请日：2000-10-26
申请人： Shinji Endo , Shinji Ishikawa , Motoki Kakui , Toshimi Suzuki
发明人： Shinji Endo , Shinji Ishikawa , Motoki Kakui , Toshimi Suzuki
IPC分类号： G02B602
CPC分类号： H01S3/06708 , C03B37/01211 , C03B2201/10 , C03B2201/28 , C03B2201/34 , C03B2201/36 , C03B2203/22
摘要： The present invention relates to a light-amplifying optical fiber comprising a structure for realizing a flat gain characteristic or oscillation characteristic in a wider wavelength band, and a method of making the same. The light-amplifying optical fiber according to the present invention comprises a second doped area containing a first doped area including an optical axis center and having a larger outer diameter than the first doped area. The second doped area is doped with at least one of Al2O3, P2O5, Y2O3, and B2O3 as an oxide of an element having a valence different from that of a cation constituting a main material of the light-amplifying optical fiber; whereas the first doped area is doped with at least one of Er, Nd, Tm, Yb, and Pr as a rare-earth element together with the oxide.
摘要翻译：本发明涉及一种包括用于实现更宽波长带中的平坦增益特性或振荡特性的结构的光放大光纤及其制造方法。根据本发明的光放大光纤包括：第二掺杂区域包含包含光轴中心并且具有比第一掺杂区域更大的外径的第一掺杂区域。掺杂有Al 2 O 3，P 2 O 5，Y 2 O 3和B 2 O 3中的至少一种作为与构成光放大光纤的主要材料的阳离子的价态不同的元素的氧化物的第2掺杂区域; 而第一掺杂区域与氧化物一起掺杂有Er，Nd，Tm，Yb和Pr中的至少一种作为稀土元素。

2. 发明授权

US06538806B2 Optical fiber for optical amplifier and fiber optic amplifier 失效
标题翻译：用于光放大器和光纤放大器的光纤
公开(公告)号：US06538806B2
公开(公告)日：2003-03-25
申请号：US09842054
申请日：2001-04-26
申请人： Shinji Endo , Shinji Ishikawa , Motoki Kakui
发明人： Shinji Endo , Shinji Ishikawa , Motoki Kakui
IPC分类号： H01S300
CPC分类号： H01S3/06754 , H01S3/06708 , H01S3/0672 , H01S3/1601 , H01S3/1608 , H01S3/1655
摘要： An optical fiber is for optical amplification used for 1.58 &mgr;m band signal light amplification, at least a core region thereof being doped with Er. At least a part of the core region is made of silica glass co-doped with Ge and Al together with Er. The Er average atomic concentration in the core region is from 1500 wt-ppm to 3000 wt-ppm inclusive, and cutoff wavelength is from 0.8 &mgr;m to 1.1 &mgr;m inclusive.
摘要翻译：用于光放大的光纤用于1.58Mum带信号光放大，至少其核心区掺杂有Er。核心区域的至少一部分由与Al一起掺杂Ge和Al的石英玻璃制成。核心区域中的Er平均原子浓度为1500重量ppm〜3000重量ppm，截止波长为0.8〜1.1μm。

3. 发明授权

US06577440B2 Optical fiber for optical amplifier and fiber optic amplifier 失效
公开(公告)号：US06577440B2
公开(公告)日：2003-06-10
申请号：US09842008
申请日：2001-04-26
申请人： Shinji Endo , Shinji Ishikawa , Motoki Kakui
发明人： Shinji Endo , Shinji Ishikawa , Motoki Kakui
IPC分类号： H01S300
CPC分类号： H01S3/06754 , H01S3/06708 , H01S3/0672 , H01S3/1601 , H01S3/1608 , H01S3/1655
摘要： An optical fiber for optical amplification used for 1.58 &mgr;m band signal light amplification, at least a core region thereof being doped with Er has a core region at least a part thereof made of silica glass co-doped with Ge and Al together with Er, and Er average atomic concentration in the core region is from 1000 wt-ppm to 3000 wt-ppm inclusive, and cutoff wavelength is from 1.3 &mgr;m to 1.5 &mgr;m inclusive.

4. 发明授权

US06490078B2 Optical fiber for optical amplifier, optical fiber amplifier and optical fiber laser 有权
标题翻译：光放大器光纤，光纤放大器和光纤激光器
公开(公告)号：US06490078B2
公开(公告)日：2002-12-03
申请号：US09809301
申请日：2001-03-16
申请人： Tadashi Enomoto , Masahiro Takagi , Yuichi Ohga , Motoki Kakui , Shinji Ishikawa , Masakazu Shigehara , Shinji Endo
发明人： Tadashi Enomoto , Masahiro Takagi , Yuichi Ohga , Motoki Kakui , Shinji Ishikawa , Masakazu Shigehara , Shinji Endo
IPC分类号： G02B634
CPC分类号： H01S3/06708 , H01S3/06716 , H01S3/06729 , H01S3/06754
摘要： The present invention relates to an OFA having a high signal gain, easily manufactured, having a high mechanical strength, having a small splice loss with respect to other optical fibers, and rarely encountering the occurrence of noise at a signal wavelength. The OFA according to the present invention has a function of amplifying signals propagating therethroug by pumping light supplied thereto, and comprises, at least, a core region, an inner cladding region provided on the periphery of the core region, an outer cladding region provided on the periphery of the inner cladding region, and one or more node coupling gratings. An element for signal amplification is added to at least the core region. The core region has a structure ensuring a core mode with respect to the signals, while the inner cladding region has a structure ensuring a multi-mode with respect to the pumping light. Each of the mode coupling gratings passes core mode signals therethrough, and induces a mode coupling between the inner cladding mode and the core mode with respect to the pumping light.
摘要翻译：本发明涉及具有高机械强度，易于制造的具有高信号增益，相对于其它光纤具有小的接合损耗，并且很少遇到在信号波长处的噪声的发生的OFA。根据本发明的OFA具有通过泵送供给到其上的光来传播传播的信号的功能，并且至少包括芯区域，设置在芯区域周围的内包层区域，设置在芯区域内包层区域的周边，以及一个或多个节点耦合光栅。用于信号放大的元件至少加到核心区域。芯区域具有确保相对于信号的芯模式的结构，而内包层区域具有确保相对于泵浦光的多模式的结构。每个模式耦合光栅通过芯模信号，并且相对于泵浦光在内包层模式和芯模之间引起模耦合。

5. 发明授权

US06771415B2 Optical fiber for optical amplifier and fiber optic amplifier 失效
标题翻译：用于光放大器和光纤放大器的光纤
公开(公告)号：US06771415B2
公开(公告)日：2004-08-03
申请号：US10428043
申请日：2003-05-02
申请人： Shinji Endo , Shinji Ishikawa , Motoki Kakui
发明人： Shinji Endo , Shinji Ishikawa , Motoki Kakui
IPC分类号： H01S300
CPC分类号： H01S3/06754 , H01S3/06708 , H01S3/0672 , H01S3/1601 , H01S3/1608 , H01S3/1655
摘要： An optical fiber for optical amplification used for 1.58 &mgr;m band signal light amplification, at least a core region thereof being doped with Er has a core region at least a part thereof made of silica glass co-doped with Ge and Al together with Er, and Er average atomic concentration in the core region is from 1000 wt-ppm to 3000 wt-ppm inclusive, and cutoff wavelength is from 1.3 &mgr;m to 1.5 &mgr;m inclusive.
摘要翻译：一种用于光放大的光纤用于1.58个母带信号光放大，至少其芯区域被掺杂有铒，其核心区域至少有一部分由与Er一起掺杂Ge和Al的石英玻璃制成，以及核心区域中的Er平均原子浓度为1000重量ppm〜3000重量ppm，截止波长为1.3〜1.5微摩尔。

6. 发明授权

US06243196B1 Optical fiber for optical amplifier and fiber optic amplifier 失效
标题翻译：用于光放大器和光纤放大器的光纤
公开(公告)号：US06243196B1
公开(公告)日：2001-06-05
申请号：US09314973
申请日：1999-05-20
申请人： Shinji Endo , Shinji Ishikawa , Motoki Kakui
发明人： Shinji Endo , Shinji Ishikawa , Motoki Kakui
IPC分类号： H01S300
CPC分类号： H01S3/06754 , H01S3/06708 , H01S3/0672 , H01S3/1601 , H01S3/1608 , H01S3/1655
摘要： An optical fiber for optical amplification used for 1.58 &mgr;m band signal light amplification, at least a core region thereof being doped with Er, wherein at least a part of the core region is made of silica glass co-doped with Ge and Al together with Er, and an average Er atomic concentration in the core region is from 950 wt-ppm to 3000 wt-ppm inclusive.
摘要翻译：一种用于光放大的光纤用于1.58Mum带信号光放大，至少其核心区域掺杂有Er，其中芯区的至少一部分由与Ge和Al一起掺杂的石英玻璃与Er一起制成，核心区域中的平均Er原子浓度为950重量ppm〜3000重量ppm。

7. 发明申请

US20050122574A1 Optical amplification fiber, optical amplifier module, optical communication system and optical amplifying method 失效
标题翻译：光放大光纤，光放大器模块，光通信系统和光放大方法
公开(公告)号：US20050122574A1
公开(公告)日：2005-06-09
申请号：US10933473
申请日：2004-09-03
申请人： Motoki Kakui , Tetsuya Haruna , Shinji Ishikawa
发明人： Motoki Kakui , Tetsuya Haruna , Shinji Ishikawa
IPC分类号： G02B6/02 , H01S3/00 , H01S3/067 , H01S3/094
CPC分类号： H01S3/06754 , G02B6/02 , H01S3/06708 , H01S3/06716 , H01S3/06758 , H01S3/06766 , H01S3/094011
摘要： The present invention relates to an optical amplification fiber and others capable of effectively reducing nonlinear interaction between signal channels even in transmission of multiplexed signal light containing multiple signal channels arranged in high density and also effectively reducing bending loss. An optical amplification module has an optical isolator, a WDM coupler, an Er-doped optical fiber (EDF) as an optical amplification fiber, a WDM coupler, and an optical isolator, which are arranged in order on a signal light propagation path from an input connector to an output connector, and further has a pumping light source connected to the WDM coupler and a pumping light source connected to the other WDM coupler. The EDF, at the wavelength of 1607 nm, has a mode field diameter (MFD) of 10 μm or more to the fundamental mode and a MAC number (=MFD/cutoff wavelength) of 6.8 or less to the fundamental mode.
摘要翻译：本发明涉及一种光放大光纤和其他能够有效降低信号通道之间的非线性相互作用的技术，即使在包含以高密度布置的多个信号通道的多路复用信号光的传输中，并且还有效地减少了弯曲损耗。光放大模块具有光隔离器，WDM耦合器，作为光放大光纤的掺铒光纤（EDF），WDM耦合器和光隔离器，它们依次布置在信号光传播路径上输入连接器连接到输出连接器，并且还具有连接到WDM耦合器的泵浦光源和连接到另一WDM耦合器的泵浦光源。在1607nm波长处的EDF具有基本模式的10mum以上的模场直径（MFD），与基本模式的MAC数（= MFD /截止波长）为6.8以下。

8. 发明申请

US20060262387A1 Optical amplifier fiber 审中-公开
标题翻译：光放大器光纤
公开(公告)号：US20060262387A1
公开(公告)日：2006-11-23
申请号：US11434073
申请日：2006-05-16
申请人： Tetsuya Haruna , Toshiki Taru , Masashi Onishi , Motoki Kakui , Shinji Ishikawa
发明人： Tetsuya Haruna , Toshiki Taru , Masashi Onishi , Motoki Kakui , Shinji Ishikawa
IPC分类号： H01S3/00 , H04B10/12
CPC分类号： H01S3/06716
摘要： Provided is an optical amplifier fiber in which both increasing output light power and sufficiently inhibiting the occurrence of nonlinear optical phenomenon can be compatibly achieved. In addition, an optical amplifier and light source equipment, in which such optical amplifier fiber is used, are provided. The optical amplifier fiber comprises (1) a core region doped with an aluminum element in the range of 1 wt % to 10 wt %, an erbium element in the range of 1000 wt. ppm to 5000 wt. ppm, and a fluorine element, the core region having an outer diameter in the range of 10 μm to 30 μm, and (2) a cladding region surrounding the core region and having a refractive index that is lower than the core region, wherein the relative refractive index difference of the core region relative to the cladding region is 0.3% or more and 2.0% or less.
摘要翻译：提供了可以兼容地实现增加输出光功率并充分抑制非线性光学现象的发生的光放大器光纤。此外，提供了使用这种光放大器光纤的光放大器和光源设备。光放大器光纤包括（1）掺杂有1重量％至10重量％范围的铝元素的芯区域，铒元素在1000重量％范围内。 ppm至5000wt。 ppm，以及氟元素，芯区域的外径在10μm〜30μm的范围内，（2）围绕芯区域的折射率低于芯区域的包层区域，其中，芯区域相对于包层区域的相对折射率差为0.3％以上且2.0％以下。

9. 发明授权

US06813065B2 Raman amplifier and optical communication system 失效
标题翻译：拉曼放大器和光通信系统
公开(公告)号：US06813065B2
公开(公告)日：2004-11-02
申请号：US09929503
申请日：2001-08-15
申请人： Tetsufumi Tsuzaki , Motoki Kakui , Shinji Ishikawa , Masashi Onishi
发明人： Tetsufumi Tsuzaki , Motoki Kakui , Shinji Ishikawa , Masashi Onishi
IPC分类号： H01S300
CPC分类号： H04B10/2916 , H01S3/06716 , H01S3/06758 , H01S3/302 , H04B2210/003
摘要： Disclosed are a gain module and an optical communication system which have gain in a broad wavelength range and are of low cost. The gain module 10 has two optical fibers 111 and 112 which differ from each other with respect to the composition of their respective optical waveguide region and which are connected in series. Because they differ from each other with respect to the quantity of their respective Stokes shift, they have gain in a different wavelength, respectively. The signal lights are introduced into the input end 10a, amplified with the gain module 10 in a wide wavelength range where an optical fiber has a Raman amplification gain, and are emitted from the output end 10b.
摘要翻译：公开了增益模块和光通信系统，其具有在宽波长范围内的增益并且具有低成本。增益模块10具有两个光纤111和112，它们相对于它们各自的光波导区域的组成而彼此不同，并且串联连接。因为它们相对于它们各自的斯托克斯位移的量彼此不同，它们分别具有不同波长的增益。信号光被引入到输入端10a中，在宽的波长范围内用增益模块10放大，其中光纤具有拉曼放大增益，并从输出端10b发射。

10. 发明授权

US6144784A Optical input/output module and light-reflecting device 失效
标题翻译：光输入/输出模块和光反射装置
公开(公告)号：US6144784A
公开(公告)日：2000-11-07
申请号：US209419
申请日：1998-12-11
申请人： Masakazu Shigehara , Shinji Ishikawa , Motoki Kakui , Hiroo Kanamori , Masayuki Nishimura
发明人： Masakazu Shigehara , Shinji Ishikawa , Motoki Kakui , Hiroo Kanamori , Masayuki Nishimura
IPC分类号： G02F1/31 , G02B6/293 , G02B6/34 , H04B10/27 , H04B10/29 , H04J14/00 , H04J14/02 , G02B6/28
CPC分类号： G02B6/2932 , G02B6/29383 , H04J14/0201
摘要： The present invention relates to an optical I/O module and light-reflecting device comprising a structure excellent in expandability having a high degree of freedom in designing. The optical I/O module according to the present invention comprises a directional coupler having, at least, input and output ports for constituting a part of a transmission line and an intermediate port for constituting a branch; and a light-reflecting device, optically connected to the intermediate port, for transmitting therethrough a specific wavelength. This structure can realize various configurations which allow a specific wavelength to be dropped from the transmission line and to be added to the transmission line, without influencing the configuration of the transmission line.
摘要翻译：本发明涉及一种光学I / O模块和光反射装置，其包括在设计中具有高自由度的可扩展性优异的结构。根据本发明的光I / O模块包括定向耦合器，至少具有用于构成传输线的一部分的输入和输出端口以及用于构成分支的中间端口; 以及光反射装置，光学连接到中间端口，用于透射特定波长。该结构可以实现允许特定波长从传输线路丢弃并被添加到传输线路的各种配置，而不影响传输线路的配置。

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