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71. 发明申请

US20090277884A1 SURFACE MODIFICATION METHOD 审中-公开
标题翻译：表面改性方法
公开(公告)号：US20090277884A1
公开(公告)日：2009-11-12
申请号：US12392164
申请日：2009-02-25
申请人： Yoshiyuki UNO , Yasuhiro Okamoto , Tetsuomi Mohri , Yuji Tanaka , Motoki Kakui , Kazuo Nakamae
发明人： Yoshiyuki UNO , Yasuhiro Okamoto , Tetsuomi Mohri , Yuji Tanaka , Motoki Kakui , Kazuo Nakamae
IPC分类号： B23K26/00 , B23K26/12
CPC分类号： B23K26/127 , B23K26/0622 , B23K26/082 , B23K26/12 , B23K26/3568 , B23K2101/20
摘要： The present invention relates to a surface modification method allowing the surface of a subject to be more effectively modified. In a pulsed-laser device suitable for use in this surface modification method, a semiconductor laser light source and a modulator constitute a seed light source. The seed light output from the seed light source is amplified by fibers for optical amplification, and the amplified light constitutes output from the pulsed-laser device. The pulsed-laser device allows the pulse width and repetition frequency of the output pulsed-laser light to be varied independently of each other. The pulse width of the pulsed-laser light output from the pulsed-laser device is preferably not more than 10 ns, and the repetition frequency is preferably at least 50 kHz.
摘要翻译：本发明涉及能够更有效地改变被检体表面的表面改性方法。在适用于该表面改性方法的脉冲激光装置中，半导体激光光源和调制器构成种子光源。从种子光源输出的种子光被用于光放大的光纤放大，并且放大的光构成了脉冲激光装置的输出。脉冲激光器件允许输出脉冲激光的脉冲宽度和重复频率彼此独立地变化。从脉冲激光装置输出的脉冲激光的脉冲宽度优选为10ns以下，重复频率优选为50kHz以上。

72. 发明申请

US20090201574A1 OPTICAL AMPLIFICATION MODULE AND LASER LIGHT SOURCE DESIGNED TO SUPPRESS PHOTODARKENING 有权
标题翻译：光学放大模块和激光光源设计用于抑制光刻
公开(公告)号：US20090201574A1
公开(公告)日：2009-08-13
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： H01S3/09 , H01S3/14
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。

73. 发明申请

US20080304137A1 Light source apparatus 有权
标题翻译：光源装置
公开(公告)号：US20080304137A1
公开(公告)日：2008-12-11
申请号：US12153900
申请日：2008-05-27
申请人： Motoki Kakui , Shinobu Tamaoki
发明人： Motoki Kakui , Shinobu Tamaoki
IPC分类号： H01S3/00 , H04B10/12
CPC分类号： H04B10/503 , H01S3/06729 , H01S3/06758 , H01S3/094003 , H04B10/2935 , H04B10/58
摘要： The invention relates to a light source apparatus having a structure for effectively suppressing a negative effect due to a nonlinear effect generated in propagation of an amplifying light, and realizing a stable operation. In the light source apparatus, light amplified in an optical amplifier fiber is emitted to the outside of the apparatus through an optical output fiber whose one end is connected to an output connecter. At this time, a part of Raman scattered light, generated in the optical output fiber, propagates toward an pumping light source through the optical amplifier fiber from the optical output fiber. An optical component having an insertion loss spectrum that attenuates the Raman scattered light but allows pumping light or light to be amplified to transmit therethrough, is provided on a propagation path of the Raman scattered light, due to the light component, the intensity of the Roman scattered light reaching the pumping light source is effectively reduced. As a result, a negative effect due to a nonlinear effect generated in propagation of light to be amplified can be effectively suppressed, and the light source apparatus can be stably operated.
摘要翻译：本发明涉及一种光源装置，其具有有效地抑制由放大光的传播中产生的非线性效应引起的负面影响的结构，并实现稳定的操作。在光源装置中，在光放大器光纤中放大的光通过其一端连接到输出连接器的光输出光纤发射到设备的外部。此时，在光输出光纤中产生的拉曼散射光的一部分通过光放大器光纤从光输出光纤传播到泵浦光源。在拉曼散射光的传播路径上设置具有衰减拉曼散射光但允许泵浦光或放大以透射的插入损耗谱的光学部件，由于光分量，罗马的强度到达泵浦光源的散射光被有效地减少。结果，可以有效地抑制由放大光的传播中产生的非线性效应引起的负面影响，并且可以稳定地操作光源装置。

74. 发明申请

US20080123694A1 Fiber laser apparatus and laser processing method 有权
标题翻译：光纤激光设备和激光加工方法
公开(公告)号：US20080123694A1
公开(公告)日：2008-05-29
申请号：US11808927
申请日：2007-06-13
申请人： Kazuo Nakamae , Motoki Kakui , Shinobu Tamaoki
发明人： Kazuo Nakamae , Motoki Kakui , Shinobu Tamaoki
IPC分类号： H01S3/067
CPC分类号： G02B6/4296 , G02B6/03633 , H01S3/06758 , H01S3/0809 , H01S3/094007 , H01S3/2308
摘要： The invention relates to a fiber laser apparatus having a structure that enables efficient laser processing for an object and to a laser processing method. The fiber laser apparatus comprises an amplifying section for amplifying seed light by cladding-pumping, and has a structure for further using a residual component of pumping light for cladding-pumping in order to heat the object. In particular, a guiding optical fiber is provided between an amplifying optical fiber of the amplifying section and an output optical system converging the single-mode amplified seed light on the object, the guiding optical fiber serving to increase the degree of freedom in arranging the output optical system. The guiding optical fiber has a structure enabling the single-mode propagation of the amplified seed light outputted from the amplifying optical fiber and multimode propagation of the residual pumping light. Because the object is irradiated with the converged amplified seed light, while being heated with the residual pumping light outputted from the output optical system, even an object with a complex shape can be subjected to efficient laser processing.
摘要翻译：本发明涉及具有能够对物体进行有效的激光加工和激光加工方法的结构的光纤激光装置。光纤激光装置包括用于通过包层泵浦放大种子光的放大部分，并且具有进一步使用用于包层抽吸的泵浦光的残余分量以加热物体的结构。特别地，在放大部分的放大光纤与将单模放大种子光聚光在物体上的输出光学系统之间设置引导光纤，该引导光纤用于增加排列输出的自由度光学系统。引导光纤具有使得能够从放大光纤输出的放大的种子光的单模传播和残余泵浦光的多模传播的结构。由于物体被会聚的放大的种子光照射，所以在从输出光学系统输出的剩余泵浦光被加热的同时，即使具有复杂形状的物体也能进行有效的激光加工。

75. 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。

76. 发明授权

US07336415B2 Optical amplification module, optical amplification apparatus, and optical communications system 失效
标题翻译：光放大模块，光放大装置和光通信系统
公开(公告)号：US07336415B2
公开(公告)日：2008-02-26
申请号：US10615389
申请日：2003-07-09
申请人： Motoki Kakui , Toshiyuki Miyamoto , Masahiro Takagi
发明人： Motoki Kakui , Toshiyuki Miyamoto , Masahiro Takagi
IPC分类号： H04B10/17
CPC分类号： H01S3/1301 , H01S3/06716 , H01S3/06754 , H01S3/094011 , H01S3/10069 , H01S2301/04
摘要： The present invention relates to a practical optical amplification module and the like realizing a wide-band gain spectrum with a small relative gain non-uniformity in L band. Pumping light from a pumping light source is supplied to a Bi type EDF by way of an optical coupler. Multiplexed signal light of L band inputted by way of an input end reaches the Bi type EDF by way of an optical coupler, an optical isolator, and an optical coupler, and is collectively amplified in the Bi type EDF. The multiplexed signal light amplified in the Bi type EDF is outputted from an output end by way of an optical coupler, an optical isolator, and an optical coupler.
摘要翻译：本发明涉及实现具有L波段相对增益不均匀性小的宽带增益谱的实际的光放大模块等。来自泵浦光源的抽吸光通过光耦合器提供给Bi型EDF。通过输入端输入的L波段的多路复用信号光通过光耦合器，光隔离器和光耦合器到达Bi型EDF，并在Bi型EDF中集中放大。在Bi型EDF中放大的复用信号光通过光耦合器，光隔离器和光耦合器从输出端输出。

77. 发明申请

US20070268570A1 Optically active device 有权
标题翻译：光学有源器件
公开(公告)号：US20070268570A1
公开(公告)日：2007-11-22
申请号：US11798530
申请日：2007-05-15
申请人： Motoki Kakui
发明人： Motoki Kakui
IPC分类号： H01S3/00 , H04B10/12
CPC分类号： H01S3/06758 , H01S3/0078 , H01S3/094003 , H01S3/094061 , H01S2301/02
摘要： The present invention relates to an optically active device comprising a plurality of stages of optical amplifying sections cascaded on an input light propagation path, and a structure for effectively preventing an upstream pumping light source from being destroyed by ASE light propagating in a direction opposite to the input light. The optically active device comprises, at least, a front-stage optical amplifying section and a rear-stage optical amplifying section which are adjacent to each other on the input light propagation path. Each of the front-stage optical amplifying section and rear-stage optical amplifying section includes an amplification fiber doped with ytterbium as an optically active material and a pumping light source for supplying the amplification optical fiber with pumping light in the band of 0.98 μm for pumping the optically active material. In particular, the optically active device comprises a deterioration preventing structure for preventing the pumping light source in the front-stage optical amplifying section from deteriorating a performance. An embodiment of the deterioration preventing structure is realized by a wavelength-multiplexing fiber coupler of a wavelength division type arranged between the front-stage optical amplifying section and rear-stage optical amplifying section. The wavelength-multiplexing coupler has a port for selectively eliminating from the input light propagation path at least an ASE component in the band of 0.98 μm from backward ASE light from the rear-stage optical amplifying section.
摘要翻译：本发明涉及一种光学器件，其包括在输入光传播路径上级联的多级光放大部分，以及用于有效地防止上游泵浦光源被ASE光沿相反方向传播的ASE光被破坏的结构输入光。光学有源装置至少包括在输入光传播路径上彼此相邻的前级光放大部分和后级光放大部分。前级光放大部分和后级光放大部分都包括掺杂有镱作为光学活性材料的放大光纤，以及用于向放大光纤提供泵浦光的波长为0.98μm的泵浦光的泵浦光源光学活性材料。特别地，光学活性器件包括用于防止前级光放大部分中的泵浦光源的劣化防止结构劣化的性能。通过布置在前级光放大部分和后级光放大部分之间的波分复用光纤耦合器实现防恶化结构的一个实施例。波长复用耦合器具有一个端口，用于从后级光放大部分的后向ASE光中选择性地从输入光传播路径中消除0.98μm的频带中的至少一个ASE分量。

78. 发明申请

US20070171516A1 Optical amplification module and laser light source including the same 失效
标题翻译：光放大模块和激光光源包括相同
公开(公告)号：US20070171516A1
公开(公告)日：2007-07-26
申请号：US11443456
申请日：2006-05-31
申请人： Shinobu Tamaoki , Motoki Kakui
发明人： Shinobu Tamaoki , Motoki Kakui
IPC分类号： H01S3/00 , H04B10/12
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。

79. 发明申请

US20060257150A1 Laser light source, method of laser oscillation, and method of laser processing 有权
标题翻译：激光光源，激光振荡方法和激光加工方法
公开(公告)号：US20060257150A1
公开(公告)日：2006-11-16
申请号：US11417253
申请日：2006-05-04
申请人： Ichiro Tsuchiya , Motoki Kakui
发明人： Ichiro Tsuchiya , Motoki Kakui
IPC分类号： H04J14/02
CPC分类号： H04J14/02 , H01S3/06758 , H01S5/005 , H01S5/0057 , H01S5/4087 , H04J14/0221
摘要： A laser light source includes a light source section for outputting pulse laser light λ1, λ2 with a mutually identical repetition frequency, an optical amplification section for amplifying and outputting the pulse laser light λ1, λ2 output from the above light source section by means of a common optical amplification medium, an optical demultiplexing section for mutually demultiplexing pulse laser light λ1, λ2, an optical multiplexing section for multiplexing and outputting the pulse laser light λ1, λ2 demultiplexed in the above optical demultiplexing section, and an optical path length difference setting section for adjusting an optical path length difference between the pulse laser light λ1, λ2 in between the optical demultiplexing section and the optical multiplexing section.
摘要翻译：激光源包括用于以相同相同的重复频率输出脉冲激光λ1，λ2 2的光源部分，用于放大和输出脉冲的光放大部分通过公共光放大介质从上述光源部分输出的激光λ1λ2λ2，用于相互解复用脉冲激光λ

80. 发明授权

US06958856B2 Raman amplifier, raman amplifier control method, and optical communication system 有权
标题翻译：拉曼放大器，拉曼放大器控制方法和光通信系统
公开(公告)号：US06958856B2
公开(公告)日：2005-10-25
申请号：US10162596
申请日：2002-06-06
申请人： Masayuki Inoue , Motoki Kakui
发明人： Masayuki Inoue , Motoki Kakui
IPC分类号： H04B10/291 , H01S3/00
CPC分类号： H04B10/2916
摘要： The present invention provides a Raman amplifier and the like comprising a structure for keeping the flatness of power spectrum of Raman-amplified signal light. The Raman amplifier comprises an optical fiber for Raman-amplifying a plurality of signal channels of signal light having respective center optical frequencies different from each other; a pumping light supply section for supplying N (N being an integer of 2 or more) pumping channels of pumping light having respective center optical frequencies different from each other to the optical fiber; and a feedback section for detecting a part of the signal light Raman-amplified within the optical fiber when the pumping light is supplied thereto, and controlling the pumping light supply section such that the Raman-amplified signal light has a substantially flat power spectrum with respect to an optical frequency direction according to the result of detection. In particular, the feedback section divides the detected Raman-amplified signal light into N optical frequency ranges defined so as to include respective Raman amplification peaks as optical frequencies lower than respective center optical frequencies of the pumping channels of pumping light by an optical frequency shift of about 15 THz, and controls the pumping light supply section such that the Raman-amplified signal light has a power fluctuation of 2 dB or less in each of thus divided N optical frequency ranges.
摘要翻译：本发明提供一种拉曼放大器等，其包括用于保持拉曼放大信号光的功率谱的平坦度的结构。拉曼放大器包括用于拉曼放大具有彼此具有不同的中心光频率的信号光的多个信号通道的光纤; 泵浦光供应部分，用于将具有彼此不同的各个中心光频率的泵浦光的泵浦通道的N（N是2或更大的整数）提供给光纤; 以及反馈部分，用于当泵浦光被提供到其中时，检测在光纤内放大的信号光的一部分的一部分，并且控制泵浦光供应部分，使得拉曼放大的信号光具有基本平坦的功率谱，根据检测结果到光频方向。特别地，反馈部分将检测到的拉曼放大信号光分成N个光学频率范围，其定义为包括相应的拉曼放大峰值，其光频率低于泵浦光泵浦通道的各个中心光频率，大约15THz，并且控制泵浦光供应部分，使得拉曼放大信号光在这样划分的N个光频率范围的每一个中具有2dB或更小的功率波动。

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