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1. 发明授权

US06806999B2 Raman amplification pumping module, Raman amplifier, and optical communication system 失效
标题翻译：拉曼放大泵浦模块，拉曼放大器和光通信系统
公开(公告)号：US06806999B2
公开(公告)日：2004-10-19
申请号：US10127449
申请日：2002-04-23
申请人： Tetsufumi Tsuzaki , Motoki Kakui , Masayuki Nishimura
发明人： Tetsufumi Tsuzaki , Motoki Kakui , Masayuki Nishimura
IPC分类号： H01S300
CPC分类号： H01S3/0941 , H01S3/06725 , H01S3/06754 , H01S3/094096 , H01S3/302
摘要： The present invention provides a Raman amplification pumping module and others with a structure for effectively suppressing degradation of quality of signal light even with a breakdown in either one of a plurality of light sources. The Raman amplification pumping module is provided with light sources for emitting respective lightwaves with center wavelengths different from each other, and each of the center wavelengths of the lightwaves from these light sources is adjusted so that a difference between two center wavelengths selected therefrom is less than 6 nm.
摘要翻译：本发明提供了一种拉曼放大泵浦模块等，其具有即使在多个光源中的任一个中的击穿的情况下也可有效地抑制信号光的质量劣化的结构。拉曼放大泵浦模块设置有用于发射具有彼此不同的中心波长的各个光波的光源，并且调节来自这些光源的光波的每个中心波长，使得从其中选择的两个中心波长之间的差小于 6nm。

2. 发明授权

US07307782B2 Raman amplifier and optical communication system including the same 失效
标题翻译：拉曼放大器和光通信系统包括相同
公开(公告)号：US07307782B2
公开(公告)日：2007-12-11
申请号：US10208198
申请日：2002-07-31
申请人： Tetsufumi Tsuzaki , Motoki Kakui , Takafumi Terahara , Junichi Kumasako
发明人： Tetsufumi Tsuzaki , Motoki Kakui , Takafumi Terahara , Junichi Kumasako
IPC分类号： H01S3/00
CPC分类号： H01S3/302 , H01S3/06725 , H01S3/06754 , H01S3/094003 , H01S3/09408 , H01S3/094096
摘要： The present invention relates to a Raman amplifier where flexibility in device design considering both of Raman amplification and dispersion compensation is high. In the Raman amplifier, the Raman amplification optical fiber included in the optical amplification section and the dispersion compensating optical fiber included in the dispersion compensation section are arranged while being optically connected to each other. Since the optical amplification section and the dispersion compensation section are provided as independent optical devices, one device can be designed without being restricted to the design conditions of the other device.
摘要翻译：拉曼放大器本发明涉及考虑拉曼放大和色散补偿的器件设计中的灵活性高的拉曼放大器。在拉曼放大器中，包括在光放大部分中的拉曼放大光纤和包括在色散补偿部分中的色散补偿光纤被布置成彼此光学连接。由于光放大部分和色散补偿部分被设置为独立的光学器件，所以可以设计一个器件而不限于另一个器件的设计条件。

3. 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。

4. 发明申请

US20080074733A1 Raman amplifier and optical communication system including the same 审中-公开
标题翻译：拉曼放大器和光通信系统包括相同
公开(公告)号：US20080074733A1
公开(公告)日：2008-03-27
申请号：US11979672
申请日：2007-11-07
申请人： Tetsufumi Tsuzaki , Motoki Kakui , Takafumi Terahara , Junichi Kumasako
发明人： Tetsufumi Tsuzaki , Motoki Kakui , Takafumi Terahara , Junichi Kumasako
IPC分类号： H01S3/00
CPC分类号： H01S3/302 , H01S3/06725 , H01S3/06754 , H01S3/094003 , H01S3/09408 , H01S3/094096
摘要： The present invention relates to a Raman amplifier where flexibility in device design considering both of Raman amplification and dispersion compensation is high. In the Raman amplifier, the Raman amplification optical fiber included in the optical amplification section and the dispersion compensating optical fiber included in the dispersion compensation section are arranged while being optically connected to each other. Since the optical amplification section and the dispersion compensation section are provided as independent optical devices, one device can be designed without being restricted to the design conditions of the other device.
摘要翻译：拉曼放大器本发明涉及考虑拉曼放大和色散补偿的器件设计中的灵活性高的拉曼放大器。在拉曼放大器中，包括在光放大部分中的拉曼放大光纤和包括在色散补偿部分中的色散补偿光纤被布置成彼此光学连接。由于光放大部分和色散补偿部分被设置为独立的光学器件，所以可以设计一个器件而不限于另一个器件的设计条件。

5. 发明授权

US07580183B2 Light generator, optical amplifier, and optical communication system 有权
标题翻译：光发生器，光放大器和光通信系统
公开(公告)号：US07580183B2
公开(公告)日：2009-08-25
申请号：US10377104
申请日：2003-03-03
申请人： Motoki Kakui , Toshiaki Okuno , Masayuki Nishimura
发明人： Motoki Kakui , Toshiaki Okuno , Masayuki Nishimura
IPC分类号： G02B26/00 , H01S3/105 , H01S3/23 , H04B10/12
CPC分类号： H04B10/2942 , H04B10/2916
摘要： In an optical amplifier according to the present invention, a change signal from a change signal source is fed into a light source or a drive circuit. The wavelength of light outputted from the light source is changed based on the change signal. The wavelength-changed output light from the light source is outputted as pumping light from a pumping light generator to be supplied backwardly via an optical multiplexer/demultiplexer into an optical fiber. Signal light is Raman-amplified in the optical fiber with the supply of the pumping light.
摘要翻译：在根据本发明的光放大器中，来自改变信号源的改变信号被馈送到光源或驱动电路中。从光源输出的光的波长根据变化信号而改变。来自光源的波长变化的输出光作为来自泵浦光发生器的泵浦光输出，经由光复用器/解复用器向后供给到光纤中。信号光在提供泵浦光的情况下在光纤中进行拉曼放大。

6. 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。

7. 发明授权

US08369004B2 MOPA light source 失效
标题翻译： MOPA光源
公开(公告)号：US08369004B2
公开(公告)日：2013-02-05
申请号：US12790323
申请日：2010-05-28
申请人： Motoki Kakui
发明人： Motoki Kakui
IPC分类号： H01S3/101 , H01S3/067 , H01S3/30
CPC分类号： H01S3/302 , H01S3/06758 , H01S3/094061 , H01S3/09408 , H01S3/10023 , H01S3/1618 , H01S3/2316
摘要： The present invention relates to a MOPA light source capable of obtaining pulse output by wavelength-conversion of pulse light of fundamental light wave using a simple configuration, and suppressing optical output using a simple method when processing is not performed. The fundamental light wave outputted from a seed light source is amplified in an optical amplification fiber. The amplified fundamental light wave is inputted to one end of a passive optical fiber, and propagates in the passive optical fiber. In the passive optical fiber, stimulated Raman scattering occurs upon propagation of the fundamental light wave. The light of fundamental light wave and light of stimulated Raman-scattered components are outputted from the other end of the passive optical fiber. The light outputted from the passive optical fiber is collimated by a lens, and is then inputted to a branching filter. The light inputted to the branching filter is wavelength-separated into light of stimulated Raman-scattered components having wavelengths longer than that of the fundamental light wave, and light having wavelengths equal to or less than that of the fundamental light wave.
摘要翻译：本发明涉及一种能够通过简单的结构获得基波光脉冲光的波长转换的脉冲输出的MOPA光源，并且在不进行处理时通过简单的方法抑制光输出。从种子光源输出的基波光在光放大光纤中放大。放大的基波光被输入到无源光纤的一端，并在无源光纤中传播。在无源光纤中，受激拉曼散射在基波光的传播时发生。从被动光纤的另一端输出受激拉曼散射分量的基波光和光的光。从无源光纤输出的光被透镜准直，然后被输入到分支滤波器。输入到分波器的光被波长分离成具有比基波光波长长的波长的受激拉曼散射分量的光，以及具有等于或小于基波光波长的波长的光。

8. 发明授权

US08080773B2 Method and apparatus of measuring backward light, and laser processing method 有权
标题翻译：测量反光的方法和装置，以及激光加工方法
公开(公告)号：US08080773B2
公开(公告)日：2011-12-20
申请号：US12392331
申请日：2009-02-25
申请人： Shinobu Tamaoki , Motoki Kakui , Kazuo Nakamae
发明人： Shinobu Tamaoki , Motoki Kakui , Kazuo Nakamae
IPC分类号： G01J1/32
CPC分类号： G01J1/20 , B23K26/705
摘要： The present invention relates to a method of measuring backward light, which is constructed for checking, prior to laser processing, backward light that propagates backward through an isolator included in a laser processing apparatus. The present invention also relates to a laser processing method and the like. A laser processing apparatus has an optical head provided with a laser light source part, light guide, and isolator. The optical head has an emitting optical system, irradiation optical system, and light collecting optical system. The method of measuring backward light uses a photodetector to detect, from reference light introduced from a measurement light source into the optical head, the power of an optical component that has passed through the isolator, while changing the position of the measurement light source. The laser processing method performs laser processing by using the laser processing apparatus that has the optical head in which the arrangement of optical components is adjusted beforehand on the basis of the result of detection or result of measurement.
摘要翻译：本发明涉及一种测量向后光的方法，其被构造用于在激光加工之前检查通过包括在激光加工设备中的隔离器向后传播的向后光。本发明还涉及一种激光加工方法等。激光加工设备具有设置有激光光源部分，光导和隔离器的光学头。光头具有发射光学系统，照射光学系统和聚光光学系统。逆向光的测量方法使用光检测器，在测量光源的位置改变的同时，从测量光源引入光头的参考光检测已经通过隔离器的光学部件的功率。激光加工方法通过使用具有基于检测结果或测量结果预先调整光学部件的布置的光头的激光加工装置进行激光加工。

9. 发明授权

US08039778B2 Laser processing apparatus and laser processing method 有权
标题翻译：激光加工设备和激光加工方法
公开(公告)号：US08039778B2
公开(公告)日：2011-10-18
申请号：US12256974
申请日：2008-10-23
申请人： Motoki Kakui , Kazuo Nakamae , Shinobu Tamaoki
发明人： Motoki Kakui , Kazuo Nakamae , Shinobu Tamaoki
IPC分类号： G01J1/32
CPC分类号： B23K26/03 , B23K26/082 , B23K2101/32 , B23K2101/36
摘要： The present invention relates to a laser processing apparatus and the like having a structure for implementing at the same time both an efficient laser processing in the place where a laser beam is difficult to reach and a laser processing without damages in the place where the laser beam is easy to reach. This laser processing apparatus comprises a laser light source, an irradiation optical system applying a laser beam to an object while scanning the laser beam, a photo-detector detecting the laser beam applied from the irradiation optical system, and a control section of making switching between a continuous oscillation and a pulse oscillation of the laser beam at the laser light source. In particular, the control section makes a continuous oscillation of the laser beam with respect to the laser light source in the case in which the laser beam applied from the irradiation optical system is detected at the photo-detector; while it makes a pulse oscillation of the laser beam with respect to the laser light source in the case in which no laser beam applied from the irradiation optical system is detected at the photo-detector.
摘要翻译：激光加工装置本发明涉及一种激光加工装置等，其结构是同时实现在激光束难以到达的地方进行有效的激光加工，激光加工在激光加工的地方很容易到达。该激光加工装置包括：激光光源，在扫描激光束的同时向物体施加激光的照射光学系统;检测从照射光学系统施加的激光束的光检测器;以及控制部，在激光光源处的激光束的连续振荡和脉冲振荡。特别地，在从光检测器检测到从照射光学系统施加的激光束的情况下，控制部分使激光束相对于激光光源连续振荡; 而在光检测器未检测到从照射光学系统施加的激光束的情况下，激光束相对于激光光源的脉冲振荡。

10. 发明授权

US07982945B2 Optical amplification module and laser light source designed to suppress photodarkening 有权
标题翻译：光放大模块和激光光源旨在抑制光暗化
公开(公告)号：US07982945B2
公开(公告)日：2011-07-19
申请号：US12423097
申请日：2009-04-14
申请人： Shinobu Tamaoki , Motoki Kakui
发明人： Shinobu Tamaoki , Motoki Kakui
IPC分类号： H04B10/17
CPC分类号： H01S3/06758 , H01S3/06716 , H01S3/094003 , H01S3/094007
摘要： The present invention relates to an optical amplification module having a construction which effectively suppresses photodarkening, and to a laser light source including the same. The laser light source comprises a light source for outputting light to be amplified, and an optical amplification module. The optical amplification module comprises two types of optical amplification media having different rare earth element concentrations, and a pumping light source. The low concentration medium and the high concentration medium are disposed in the propagation direction of pumping light such that the population inversion of the low concentration medium is higher than that of the high concentration medium. Hence, by arranging two types of optical amplification media with different rare earth concentrations such that the population inversion of the low concentration medium is higher than that of the high concentration medium, sufficient overall gain of the laser light source can be obtained while effectively suppressing photodarkening in the two types of optical amplification media.
摘要翻译：本发明涉及具有有效抑制光暗化的结构的光放大模块及涉及包括该光放大模块的激光光源。激光光源包括用于输出要放大的光的光源和光放大模块。光放大模块包括具有不同稀土元素浓度的两种类型的光放大介质和泵浦光源。低浓度培养基和高浓度培养基配置在泵浦光的传播方向，使得低浓度培养基的群体倒置高于高浓度培养基。因此，通过布置具有不同稀土浓度的两种类型的光学放大介质，使得低浓度介质的群体反转高于高浓度介质的群体反转，可以在有效抑制光暗化的同时获得激光源的足够的总体增益在两种类型的光放大介质中。

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