公开(公告)号：US08933367B2

公开(公告)日：2015-01-13

申请号：US13369076

申请日：2012-02-08

申请人： Motoki Kakui ,  Hiroshi Kohda ,  Yasuomi Kaneuchi ,  Shinobu Tamaoki ,  Shigehiro Nagano ,  Yoshiyuki Uno ,  Yasuhiro Okamoto ,  Kenta Takahashi

发明人： Motoki Kakui ,  Hiroshi Kohda ,  Yasuomi Kaneuchi ,  Shinobu Tamaoki ,  Shigehiro Nagano ,  Yoshiyuki Uno ,  Yasuhiro Okamoto ,  Kenta Takahashi

IPC分类号： B23K26/36 ,  B23K26/00 ,  B23K26/08 ,  B23K26/10 ,  B23K26/38 ,  B23K26/40 ,  H01L21/302

CPC分类号： B23K26/40 ,  B23K26/0006 ,  B23K26/0617 ,  B23K26/0869 ,  B23K26/10 ,  B23K26/36 ,  B23K26/361 ,  B23K26/364 ,  B23K26/38 ,  B23K26/53 ,  B23K26/57 ,  B23K2103/50 ,  B23K2103/56 ,  H01L21/302

摘要： There is obtained a laser processing method by which an excellent shape of a cut surface can be achieved and an increase in cost can be suppressed. A laser processing method includes the steps of: preparing a material to be processed; and forming a modified area in the material to be processed, by irradiating the material to be processed with laser beam. In the aforementioned step, pulsed laser beam having a continuous spectrum is focused with a lens, thereby forming a focusing line constituted by a plurality of focuses that are obtained by predetermined bands forming the continuous spectrum of the laser beam, and the material to be processed is irradiated with the laser beam such that at least a part of the focusing line is located on a surface of the material to be processed, thereby forming the modified area on an axis of the focusing line.

摘要翻译： 获得能够实现切割面的优良形状并且可以抑制成本增加的激光加工方法。 激光加工方法包括以下步骤：准备待加工材料; 并且通过用激光束照射被处理材料，在被处理材料中形成改质区域。 在上述步骤中，具有连续光谱的脉冲激光束与透镜聚焦，从而形成由通过形成激光束的连续光谱的预定带获得的多个聚焦构成的聚焦线，以及待处理的材料 用激光束照射使得聚焦线的至少一部分位于待处理材料的表面上，从而在聚焦线的轴上形成改质区域。

公开(公告)号：US08902940B2

公开(公告)日：2014-12-02

申请号：US13477536

申请日：2012-05-22

申请人： Motoki Kakui ,  Shinobu Tamaoki

发明人： Motoki Kakui ,  Shinobu Tamaoki

IPC分类号： H01S3/10 ,  H01S3/067 ,  B23K26/06 ,  H01S3/094 ,  H01S3/16 ,  H01S5/068 ,  H01S3/00 ,  H01S5/062 ,  H01S3/17

CPC分类号： H01S3/06758 ,  B23K26/0622 ,  H01S3/0057 ,  H01S3/0064 ,  H01S3/0078 ,  H01S3/094003 ,  H01S3/094061 ,  H01S3/10015 ,  H01S3/1618 ,  H01S3/1693 ,  H01S3/176 ,  H01S5/06216 ,  H01S5/06804

摘要： The present invention relates to a light source control method capable of decreasing the dependence of a pulse width (FWHM) of an output pulsed light on a repetition frequency. A pulsed light source has an MOPA structure, and has a seed light source and an optical fiber amplifier. The seed light source includes a semiconductor laser which is directly modulated and outputs a pulsed light. By adjusting a temperature of the seed light source and a pumping light power of the optical fiber amplifier, a predetermined full width half maximum of a pulse at a predetermined repetition frequency is implemented for the pulsed light outputted from the optical fiber amplifier.

摘要翻译： 本发明涉及能够降低输出脉冲光的脉冲宽度（FWHM）对重复频率的依赖性的光源控制方法。 脉冲光源具有MOPA结构，并具有种子光源和光纤放大器。 种子光源包括直接调制并输出脉冲光的半导体激光器。 通过调整种子光源的温度和光纤放大器的泵浦光功率，对于从光纤放大器输出的脉冲光，实施预定重复频率的脉冲的预定全宽度半值。

公开(公告)号：US08565277B2

公开(公告)日：2013-10-22

申请号：US12692226

申请日：2010-01-22

申请人： Shinobu Tamaoki

发明人： Shinobu Tamaoki

IPC分类号： H01S5/042 ,  H01S3/067

CPC分类号： H01S3/10092 ,  H01S3/067 ,  H01S3/06708 ,  H01S3/094011 ,  H01S3/09408 ,  H01S3/1618 ,  H01S2301/03

摘要： The present invention relates to a pulse modulation method and the like having a structure for effectively suppressing nonlinear optical phenomena which increase as an optical pulse becomes wider when amplifying the optical pulse with a predetermined period as seed light. A modulator performs pulse modulation for a laser light source which is a seed light source or light outputted from the laser light source. A modulation pattern of a modulated voltage outputted from the modulator is adjusted such as to include a plurality of pulse components each having a signal width shorter than the pulse width of the optical pulse as an optical pulse generation pattern within a modulation period corresponding to a period of the optical pulse.

摘要翻译： 脉冲调制方法本发明涉及一种脉冲调制方法等，其具有有效地抑制随着光脉冲以预定周期放大光脉冲作为种子光时光脉冲变宽的非线性光学现象的增加。 调制器对作为种子光源的激光光源或从激光光源输出的光进行脉冲调制。 调整从调制器输出的调制电压的调制图案，使得包括多个脉冲成分，每个脉冲成分的信号宽度短于光脉冲的脉冲宽度，作为对应于周期的调制周期内的光脉冲发生模式 的光脉冲。

公开(公告)号：US20120307847A1

公开(公告)日：2012-12-06

申请号：US13485551

申请日：2012-05-31

申请人： Shinobu TAMAOKI ,  Motoki KAKUI

发明人： Shinobu TAMAOKI ,  Motoki KAKUI

IPC分类号： H01S3/067 ,  H01S3/10

CPC分类号： H01S3/06758 ,  B23K26/0622 ,  H01S3/0085 ,  H01S3/10015 ,  H01S3/1618

摘要： The present invention relates to a laser apparatus having a structure for easily shortening a pulse. In the laser apparatus, as a result of a phase control unit adjusting a modulation period of an external modulator and an output period of pulsed light of a seed light source, it is possible to generate pulsed light which is outputted only during a period when the modulation period and the output period overlap each other.

摘要翻译： 本发明涉及具有容易缩短脉冲的结构的激光装置。 在激光装置中，作为调整外部调制器的调制周期和种子光源的脉冲光的输出周期的相位控制单元的结果，可以产生仅在 调制周期和输出周期相互重叠。

公开(公告)号：US20120305805A1

公开(公告)日：2012-12-06

申请号：US13485477

申请日：2012-05-31

申请人： Shinobu TAMAOKI ,  Motoki KAKUI

发明人： Shinobu TAMAOKI ,  Motoki KAKUI

IPC分类号： B01J19/12

CPC分类号： H01S3/10015 ,  H01S3/0078 ,  H01S3/06758 ,  H01S3/09415 ,  H01S3/10069 ,  H01S3/1618 ,  H01S5/06216 ,  H01S5/06804

摘要： The present invention relates to a laser apparatus having a structure for facilitating the change of a transparent wavelength band of a bandpass filter in accordance with a central wavelength of pulsed light. In the laser apparatus, the transparent wavelength band of light to be transmitted through a BPF is changed according to the central wavelength of the pulsed light when the pulse width of the pulsed light outputted from a seed light source is changed.

摘要翻译： 本发明涉及具有根据脉冲光的中心波长使带通滤波器的透明波长带变化的结构的激光装置。 在激光装置中，当从种子光源输出的脉冲光的脉冲宽度改变时，通过BPF透射的光的透明波长带根据脉冲光的中心波长而改变。

公开(公告)号：US07724424B2

公开(公告)日：2010-05-25

申请号：US11785927

申请日：2007-04-20

申请人： Shinobu Tamaoki

发明人： Shinobu Tamaoki

IPC分类号： H04B10/17 ,  H04B10/12

CPC分类号： H01S3/06758 ,  G02B6/2804 ,  H01S3/06716 ,  H01S3/0672 ,  H01S3/06729 ,  H01S3/094007 ,  H01S3/094053 ,  H01S3/09415 ,  H01S3/1616 ,  H01S3/1618

摘要： An optical module for supplying pump light for amplifying to-be-amplified light includes an pump light source, optical coupling means, and an optical guide section. The optical guide section optically connects the pump light source and the optical coupling means, and propagates the pump light from the pump light source, in multi-transverse-mode. The optical coupling means output the pump light from the optical guide section in multi-transverse-mode, and at least one of (i) at least one of end faces where the optical guide section and the optical coupling means are connected, (ii) an area between the end faces, and (iii) the optical guide section, has a loss medium of which transmission loss is greater in a wavelength of the to-be-amplified light than in a wavelength of the pump light. By this, an optical module which can stably supply the pump light to the optical amplification fiber can be provided.

摘要翻译： 用于提供用于放大被放大的光的泵浦光的光学模块包括泵浦光源，光学耦合装置和光学引导部分。 光导部分将泵浦光源和光耦合装置光学连接，并以多横模式从泵浦光源传播泵浦光。 光耦合装置以多横模式输出来自光导部分的泵浦光，以及（i）光导部分和光耦合装置连接的至少一个端面中的至少一个，（ii） 端面之间的区域和（iii）光导部分具有在被放大的光的波长中的传输损耗大于泵浦光的波长的损耗介质。 由此，能够提供将光泵稳定地供给到光放大光纤的光模块。

公开(公告)号：US20100033548A1

公开(公告)日：2010-02-11

申请号：US12536780

申请日：2009-08-06

申请人： Yasuomi KANEUCHI ,  Motoki KAKUI ,  Kazuo NAKAMAE ,  Shinobu TAMAOKI

发明人： Yasuomi KANEUCHI ,  Motoki KAKUI ,  Kazuo NAKAMAE ,  Shinobu TAMAOKI

IPC分类号： B41J2/47

CPC分类号： B41J2/471 ,  B41J2/442 ,  B41M5/24 ,  H01S3/0064 ,  H01S3/0078 ,  H01S3/06708 ,  H01S3/06758 ,  H01S3/094003 ,  H01S3/094007 ,  H01S3/09408 ,  H01S3/09415 ,  H01S3/1618

摘要： The present invention relates to a laser marking method which is capable of changing the grey level of a marking even in the case of a high processing speed. The laser marking method forms a marking pattern on a marking object by irradiating the marking object with pulsed light oscillated from a pulsed light source of a MOPA structure in which a semiconductor laser outputting directly-modulated pulsed light is used as a seed light source. At this time, the pulse duration of the pulsed light is changed in order to change a gray level of the marking pattern to be formed. In this way, a peak power of the pulsed light is changed by changing the pulse duration, so that it is possible to positively change the gray level of the marking pattern without changing the processing speed.

摘要翻译： 本发明涉及即使在高处理速度的情况下也能够改变标记的灰度级的激光打标方法。 激光标记方法通过用从其中输出直接调制的脉冲光的半导体激光器用作种子光源的MOPA结构的脉冲光源振荡的脉冲光照射标记物体来在标记物体上形成标记图案。 此时，改变脉冲光的脉冲持续时间以改变要形成的标记图案的灰度级。 以这种方式，通过改变脉冲持续时间来改变脉冲光的峰值功率，从而可以在不改变处理速度的情况下肯定地改变标记图案的灰度级。

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。

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。

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。