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41. 发明授权

US08008600B2 Fiber laser apparatus 有权
标题翻译：光纤激光设备
公开(公告)号：US08008600B2
公开(公告)日：2011-08-30
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： B23K26/06 , H01S3/067 , H04B10/12 , G02B6/036
CPC分类号： G02B6/4296 , G02B6/03633 , H01S3/06758 , H01S3/0809 , H01S3/094007 , H01S3/2308
摘要： 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. 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：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。引导光纤设置在放大部分的放大光纤与将单模放大种子光会聚在物体上的输出光学系统之间，该引导光纤用于增加输出光学系统的布置自由度。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。

42. 发明授权

US07876794B2 Laser light source 有权
标题翻译：激光光源
公开(公告)号：US07876794B2
公开(公告)日：2011-01-25
申请号：US11529580
申请日：2006-09-29
申请人： Motoki Kakui
发明人： Motoki Kakui
IPC分类号： H01S3/11
CPC分类号： H01S3/067 , H01M8/04186 , H01M8/04208 , H01M8/0687 , H01S3/06791 , H01S3/08 , H01S3/09415 , H01S3/1022 , H01S3/117 , H01S3/1306 , H01S3/1312 , H01S3/1618
摘要： The present invention discloses a laser light source for implementing pulsed oscillation of laser light, which has a laser cavity in which a laser medium for generating emitted light with supply of excitation energy is placed on a resonance path; an excitation device for continuously supplying excitation energy to the laser medium; a monitor part for monitoring a power of light extracted at a middle point of the path of the cavity from the laser medium in accordance with the supply of the excitation energy by the excitation device; a Q-switch for modulating a cavity loss of the laser cavity; and a control part for performing such control as to stabilize a peak power or an energy of laser light pulses outputted in a state in which the cavity loss of the laser cavity is set at a second predetermined loss for oscillation of high-power pulses, based on the power of the emitted light monitored by the monitor part in a state in which the cavity loss of the laser cavity is set at a first predetermined loss for non-oscillation of high-power pulses.
摘要翻译：本发明公开了一种用于实现激光的脉冲振荡的激光光源，该激光光源具有激光腔，激光能量在激光能量的供给下产生发射光的激光介质; 激励装置，用于向激光介质连续地提供激发能; 监视器部分，用于根据由激励装置提供的激发能量来监测从激光介质在腔的路径的中点处提取的光的功率; 用于调制激光腔腔损耗的Q开关; 以及控制部件，用于进行这样的控制，以使在将激光腔的腔体损耗设定为第二预定损耗的状态下输出的激光脉冲的峰值功率或能量以高功率脉冲的振荡为基础对于在高功率脉冲的非振荡的情况下，激光腔的腔体损耗被设定为第一预定损耗的状态下，由监视器部分监视的发射光的功率。

43. 发明授权

US07773295B2 Optical amplication module, optical amplifier, optical communication system, and white light source 有权
标题翻译：光放大模块，光放大器，光通信系统和白光源
公开(公告)号：US07773295B2
公开(公告)日：2010-08-10
申请号：US12408974
申请日：2009-03-23
申请人： Motoki Kakui , Jun Kinugasa
发明人： Motoki Kakui , Jun Kinugasa
IPC分类号： H04B10/17 , H04B10/12
CPC分类号： H01S3/06758 , H01S3/06716 , H01S3/06766 , H01S3/06775 , H01S3/10007 , H01S3/1608 , H01S3/1616 , H01S2301/02 , H01S2301/04
摘要： The present invention relates to an optical amplifier and the like having a flatter gain spectrum in the wavelength band of 1490 nm to 1520 nm than before. The optical amplifier according to the present invention comprises an Er-doped optical waveguide and a Tm-doped optical waveguide having gain spectra difference from each other in the wavelength band. The signal light entered through the input end is first amplified by the Er-doped optical waveguide, and thereafter is amplified by the Tm-doped optical waveguide. The gain deviation of the amplified signal light, which has been amplified in the Er- and Tm-doped optical waveguides and outputted through the output end, can be reduced over the wavelength band.
摘要翻译：本发明涉及在以前的1490nm至1520nm的波长带内具有较平坦增益谱的光放大器等。根据本发明的光放大器包括Er掺杂光波导和在波长带中具有彼此增益谱差的Tm掺杂光波导。通过输入端进入的信号光首先被掺铒光波导放大，之后由掺杂Tm的光波导放大。在Er-和Tm掺杂的光波导中被放大并通过输出端输出的放大的信号光的增益偏差可以在波长带上减小。

44. 发明申请

US20090242523A1 LASER PROCESSING METHOD 审中-公开
标题翻译：激光加工方法
公开(公告)号：US20090242523A1
公开(公告)日：2009-10-01
申请号：US12412086
申请日：2009-03-26
申请人： Kazuo Nakamae , Motoki Kakui , Shinobu Tamaoki
发明人： Kazuo Nakamae , Motoki Kakui , Shinobu Tamaoki
IPC分类号： B23K26/20
CPC分类号： B23K26/324 , B23K26/0006 , B23K26/0604 , B23K26/0608 , B23K2103/05 , B23K2103/18 , B23K2103/42
摘要： The present invention relates to a laser processing method that makes it possible to effectively suppress the generation of surface irregularities on the surface of a plastic member where a metal member and a plastic member are joined together. In the laser processing method, a plurality of laser beams are irradiated from different directions so as to focus on the vicinity of an interface between the metal member and the plastic member, which are in contact with one another. The power densities of the respective laser beams at this time are set to a level not more than a level, at which the exposed surface of the plastic member on the side opposite to the interface between the metal member and the plastic member, does not melt. As a result of this, air bubbles or the like are not generated in the vicinity of the exposed surface of the plastic member, and the generation of surface roughness on the exposed surface of the plastic member is effectively suppressed.
摘要翻译：激光加工方法技术领域本发明涉及能够有效地抑制金属构件和塑料构件接合在一起的塑料构件的表面上的表面凹凸的产生的激光加工方法。在激光加工方法中，从不同方向照射多个激光束，以聚焦在彼此接触的金属构件和塑料构件之间的界面附近。此时的各激光束的功率密度被设定为不超过与金属构件和塑料构件之间的界面相反一侧的塑料构件的暴露表面不熔化的水平的水平。其结果是，在塑料部件的露出面附近不产生气泡等，有效地抑制塑料部件露出面的表面粗糙度的产生。

45. 发明申请

US20090219955A1 LASER OSCILLATION METHOD, LASER, LASER PROCESSING METHOD AND LASER MEASUREMENT METHOD 审中-公开
标题翻译：激光振荡方法，激光，激光加工方法和激光测量方法
公开(公告)号：US20090219955A1
公开(公告)日：2009-09-03
申请号：US12392589
申请日：2009-02-25
申请人： Motoki Kakui
发明人： Motoki Kakui
IPC分类号： H01S3/11
CPC分类号： H01S3/067 , H01S3/06791 , H01S3/094003 , H01S3/1068 , H01S3/107 , H01S3/115 , H01S3/117 , H01S3/121
摘要： The present invention relates to a laser oscillation method for effectively suppressing fluctuations in pulse widths. The laser oscillation method oscillates a pulsed beam in a laser that comprises pumping means, a resonator, Q-switching means and a controller. The pumping means continuously supplies pumping light to a gain medium, which is arranged on the resonating optical path of the resonator and generates emission light by being supplied with pumping energy. The Q-switching means modulates the resonator losses of the resonator. The controller controls an extinction ratio of Q-switching means to a value that has been selected in accordance with the frequency of repeat use in the pulsed beam such that fluctuations in the full width at half maximum of a pulsed beam outputted from the laser are within a prescribed range of the region of frequency of repeat use used by the Q-switching means.
摘要翻译：本发明涉及一种有效抑制脉冲宽度波动的激光振荡方法。激光振荡方法在包括泵送装置，谐振器，Q开关装置和控制器的激光器中振荡脉冲束。泵浦装置连续地将泵浦光提供给增益介质，增益介质被布置在谐振器的谐振光路上，并通过被提供泵浦能产生发射光。 Q开关装置调制谐振器的谐振器损耗。控制器将Q切换装置的消光比控制为根据脉冲光束中的重复使用频率选择的值，使得从激光器输出的脉冲光束的半峰全波宽在其内由Q开关装置使用的重复使用频率区域的规定范围。

46. 发明授权

US07532391B2 Optical amplification module and laser light source designed to suppress photodarkening 失效
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：US07532391B2
公开(公告)日：2009-05-12
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： H04B10/17 , H04B10/12 , H01S3/00
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。

47. 发明申请

US20080130101A1 Optical fiber amplifying module 有权
标题翻译：光纤放大模块
公开(公告)号：US20080130101A1
公开(公告)日：2008-06-05
申请号：US11729971
申请日：2007-03-30
申请人： Motoki Kakui
发明人： Motoki Kakui
IPC分类号： H01S3/063
CPC分类号： H01S3/06758 , H01S3/10007
摘要： The present invention relates to an optical fiber amplifying module equipped with a structure for stably attaining a high gain even when amplifying light having a low duty cycle. The optical fiber amplifying module comprises at least three amplification optical fibers successively arranged from an input connector to an output collimator. A bandpass filter is arranged between the first- and second-stage amplification optical fibers. Control means having a structure constituted by optically passive components alone or a feedback structure functions so as to render an upper limit to a gain for input light in the first-stage amplification optical fiber, thereby preventing the deterioration in performances such as destruction of the bandpass filter from occurring in optical components positioned on the upstream side of the final-stage amplification optical fiber.
摘要翻译：本发明涉及一种具有即使在放大低占空比的光时稳定获得高增益的结构的光纤放大模块。光纤放大模块包括从输入连接器连续地布置到输出准直器的至少三个放大光纤。带通滤波器布置在第一和第二级放大光纤之间。控制装置具有仅由光学无源部件构成的结构或者反馈结构的功能，以使第一级放大光纤中的输入光的增益成为上限，从而防止诸如带通破坏的性能的劣化滤波器发生在位于最后级放大光纤的上游侧的光学部件中。

48. 发明申请

US20060263018A1 Optical fiber for amplification, optical amplifying apparatus, light source apparatus, photo-therapy apparatus, and exposure apparatus 失效
标题翻译：用于放大的光纤，光学放大装置，光源装置，光疗装置和曝光装置
公开(公告)号：US20060263018A1
公开(公告)日：2006-11-23
申请号：US11130410
申请日：2005-05-17
申请人： Masahiro Takagi , Motoki Kakui , Akira Tokuhisa , Soichi Owa
发明人： Masahiro Takagi , Motoki Kakui , Akira Tokuhisa , Soichi Owa
IPC分类号： G02B6/16
CPC分类号： H01S3/06754 , G02B6/02009 , H01S3/005 , H01S3/06729 , H01S3/06758 , H01S3/1608 , H01S3/1693 , H01S2301/02
摘要： The present invention relates to an optical fiber for amplification, an optical amplifying apparatus, and so on, having a structure for enabling increase of power of output light, suppression of occurrence of nonlinear optical phenomena, and compact storage all together. The optical amplifying apparatus comprises an optical fiber for amplification amplifying input light inputted together with pumping light from a pumping light source. The optical fiber for amplification comprises a core region doped with a rare-earth element, and a cladding region provided on an outer periphery of the core region and having a refractive index lower than that of the core region. The core region has an outer diameter of 10 μm or more but 30 μm or less, and has a relative refractive index difference of 0.5% or more but 2.0% or less with respect to the cladding region. The cladding region has an outer diameter of 75 μm or more but 200 μm or less.
摘要翻译：本发明涉及一种用于放大的光纤，光放大装置等，具有能够增加输出光功率，抑制非线性光学现象的发生和小型存储的结构。光放大装置包括用于放大放大与泵浦光源的泵浦光一起输入的输入光的光纤。用于放大的光纤包括掺杂有稀土元素的芯区域和设置在芯区域的外周上并且折射率低于芯区域的折射率的包层区域。芯区域的外径为10μm以上且30μm以下，相对折射率差为0.5％以上且2.0％以下。包层区域的外径为75μm以上且200μm以下。

49. 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。

50. 发明申请

US20060204869A1 Laser processing device 失效
标题翻译：激光加工装置
公开(公告)号：US20060204869A1
公开(公告)日：2006-09-14
申请号：US11363288
申请日：2006-02-28
申请人： Motoki Kakui
发明人： Motoki Kakui
IPC分类号： G03C5/00 , G21G5/00
CPC分类号： G21B1/05 , Y02E30/126
摘要： There is disclosed a laser processing device, comprising: a laser light source for emitting laser light; an irradiating optical system for irradiating laser light emitted from the laser light source substantially perpendicularly onto a processing surface of an object to be processed; a reflected light monitoring unit for monitoring the intensity of light reflected from the processing surface which is being irradiated with the laser light from the irradiating optical system; a thermal radiation monitoring unit for monitoring the intensity of thermal radiation generated at the processing surface which is being irradiated with the laser light from the irradiating optical system; and a controller for controlling output of laser light from the laser light source, wherein the controller determines abnormality and either one of reduces and stops output of laser light from the laser light source when the intensity of reflected light monitored by the reflected light monitoring unit drops below a first prescribed value during irradiation by the laser and the output of laser light from the laser light source is in a prescribed state and either one of prior to the start and after the end of thermal radiation.
摘要翻译：公开了一种激光加工装置，包括：激光光源，用于发射激光; 照射光学系统，用于将从激光光源发射的激光基本垂直地照射到待处理物体的处理表面上; 反射光监视单元，用于监视从照射光学系统照射激光的从处理表面反射的光的强度; 热辐射监测单元，用于监测在从照射光学系统照射激光的处理表面处产生的热辐射强度; 以及控制器，用于控制来自所述激光源的激光的输出，其中，当所述反射光监视单元监视的反射光的强度下降时，所述控制器确定异常并且从所述激光光源输出激光的输出减少和停止在激光照射期间低于第一规定值，并且来自激光源的激光的输出处于规定状态，并且在热辐射的开始和结束之后的任一个。

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