公开(公告)号：US20080107141A1

公开(公告)日：2008-05-08

申请号：US11976790

申请日：2007-10-29

申请人： Byung Jin Ma ,  Kiyoyuki Kawai ,  Hong Ki Kim

发明人： Byung Jin Ma ,  Kiyoyuki Kawai ,  Hong Ki Kim

IPC分类号： H01S3/10

CPC分类号： G02F1/3775 ,  G02F2001/3546

摘要： A wavelength conversion laser apparatus including: a laser light source emitting primary wavelength light; a non-linear optical crystal including: a light waveguide region having a first refractivity, the light waveguide region receiving the primary wavelength light to output as secondary wavelength light; and a clad region adjacent to the light waveguide region, the clad region having a second refractivity lower than the first refractivity, wherein at least the light waveguide region has a periodically domain-inverted structure formed such that a domain-inverted period varies in a direction perpendicular to an incident axis of the primary wavelength light; and a mover moving the non-linear optical crystal to change the domain-inverted period on a path where the primary wavelength light incident on the light waveguide region passes.

摘要翻译： 一种波长转换激光装置，包括：发射主波长光的激光光源; 一种非线性光学晶体，包括：具有第一折射率的光波导区域，所述光波导区域接收所述主波长光以作为次级波长光输出; 以及与所述光波导区域相邻的包层区域，所述包层区域具有比所述第一折射率低的第二折射率，其中至少所述光波导区域具有周期性域反转结构，使得畴反转周期沿方向 垂直于主波长光的入射轴; 以及移动非线性光学晶体的移动器，以改变入射在光波导区域上的主波长光通过的路径上的域反转时段。

公开(公告)号：US07760773B2

公开(公告)日：2010-07-20

申请号：US11976790

申请日：2007-10-29

申请人： Byung Jin Ma ,  Kiyoyuki Kawai ,  Hong Ki Kim

发明人： Byung Jin Ma ,  Kiyoyuki Kawai ,  Hong Ki Kim

IPC分类号： H01S3/10

CPC分类号： G02F1/3775 ,  G02F2001/3546

摘要： A wavelength conversion laser apparatus including: a laser light source emitting primary wavelength light; a non-linear optical crystal including: a light waveguide region having a first refractivity, the light waveguide region receiving the primary wavelength light to output as secondary wavelength light; and a clad region adjacent to the light waveguide region, the clad region having a second refractivity lower than the first refractivity, wherein at least the light waveguide region has a periodically domain-inverted structure formed such that a domain-inverted period varies in a direction perpendicular to an incident axis of the primary wavelength light; and a mover moving the non-linear optical crystal to change the domain-inverted period on a path where the primary wavelength light incident on the light waveguide region passes.

摘要翻译： 一种波长转换激光装置，包括：发射主波长光的激光光源; 一种非线性光学晶体，包括：具有第一折射率的光波导区域，所述光波导区域接收所述主波长光以作为次级波长光输出; 以及与所述光波导区域相邻的包层区域，所述包层区域具有比所述第一折射率低的第二折射率，其中至少所述光波导区域具有周期性域反转结构，使得畴反转周期沿方向 垂直于主波长光的入射轴; 以及移动非线性光学晶体的移动器，以改变入射在光波导区域上的主波长光通过的路径上的域反转时段。

公开(公告)号：US20080037600A1

公开(公告)日：2008-02-14

申请号：US11808824

申请日：2007-06-13

申请人： Byung Jin Ma ,  Kiyoyuki Kawai

发明人： Byung Jin Ma ,  Kiyoyuki Kawai

IPC分类号： H01S3/10 ,  G02F1/137

CPC分类号： G02F1/3501 ,  G02F1/3544 ,  G02F2001/3546 ,  H01S3/005 ,  H01S3/0071

摘要： A wavelength conversion laser device includes a laser light source for emitting a first wavelength light, a nonlinear optical crystal for converting the first wavelength light into a second wavelength light, and a nonlinear optical crystal rotator for rotating the nonlinear optical crystal so as to change an incident angle of the first wavelength light into the nonlinear optical crystal. The device also includes a nonlinear optical crystal rotation driving controller for controlling a rotation amount of the rotator in accordance with an output change of the second wavelength light so that the nonlinear optical crystal has phase matching with the first wavelength light. The device further includes a light exit position adjustor for compensating an exit position change of the second wavelength light in accordance with the incident angle change of the first wavelength light so that the second wavelength light is outputted in a predetermined exit position.

公开(公告)号：US07447244B2

公开(公告)日：2008-11-04

申请号：US11808824

申请日：2007-06-13

申请人： Byung Jin Ma ,  Kiyoyuki Kawai

发明人： Byung Jin Ma ,  Kiyoyuki Kawai

IPC分类号： H01S3/10 ,  H01S3/08

CPC分类号： G02F1/3501 ,  G02F1/3544 ,  G02F2001/3546 ,  H01S3/005 ,  H01S3/0071

摘要： A wavelength conversion laser device includes a laser light source for emitting a first wavelength light, a nonlinear optical crystal for converting the first wavelength light into a second wavelength light, and a nonlinear optical crystal rotator for rotating the nonlinear optical crystal so as to change an incident angle of the first wavelength light into the nonlinear optical crystal. The device also includes a nonlinear optical crystal rotation driving controller for controlling a rotation amount of the rotator in accordance with an output change of the second wavelength light so that the nonlinear optical crystal has phase matching with the first wavelength light. The device further includes a light exit position adjustor for compensating an exit position change of the second wavelength light in accordance with the incident angle change of the first wavelength light so that the second wavelength light is outputted in a predetermined exit position.

摘要翻译： 波长转换激光器件包括用于发射第一波长光的激光源，用于将第一波长光转换成第二波长光的非线性光学晶体，以及用于旋转非线性光学晶体以改变非线性光学晶体的非线性光学晶体旋转器 第一波长光的入射角进入非线性光学晶体。 该装置还包括非线性光学晶体旋转驱动控制器，用于根据第二波长光的输出变化来控制旋转体的旋转量，使得非线性光学晶体与第一波长光具有相位匹配。 该装置还包括光出射位置调节器，用于根据第一波长光的入射角度变化来补偿第二波长光的出射位置变化，使得第二波长光在预定出口位置输出。

公开(公告)号：US07443892B2

公开(公告)日：2008-10-28

申请号：US11808812

申请日：2007-06-13

申请人： Byung Jin Ma ,  Kiyoyuki Kawai

发明人： Byung Jin Ma ,  Kiyoyuki Kawai

IPC分类号： H01S3/10

CPC分类号： G02F1/3544 ,  G02F1/37 ,  G02F2001/3546 ,  H01S5/005 ,  H01S5/0071 ,  H01S5/06837

摘要： In a wavelength conversion laser device, a laser light source emits first wavelength light. A non-linear optical crystal converts the first wavelength light into second wavelength light. A rotational driver rotates the non-linear optical crystal so as to alter an incidence angle of the first wavelength light with respect to the non-linear optical crystal. A rotational driving controller detects a portion of an output of the second wavelength light, generates a rotational control signal of the non-linear optical crystal in accordance with a change in the output, and transmits the rotational control signal to the rotational driver. A beam location maintaining mirror retroreflects the second wavelength light, outputted from the non-linear optical crystal, along a substantially same path as that of the first wavelength light. Also, an output beam distributor guides the retroreflected second wavelength light in a desired output direction.

公开(公告)号：US20080037599A1

公开(公告)日：2008-02-14

申请号：US11808812

申请日：2007-06-13

申请人： Byung Jin Ma ,  Kiyoyuki Kawai

发明人： Byung Jin Ma ,  Kiyoyuki Kawai

IPC分类号： H01S3/10

CPC分类号： G02F1/3544 ,  G02F1/37 ,  G02F2001/3546 ,  H01S5/005 ,  H01S5/0071 ,  H01S5/06837

摘要： In a wavelength conversion laser device, a laser light source emits first wavelength light. A non-linear optical crystal converts the first wavelength light into second wavelength light. A rotational driver rotates the non-linear optical crystal so as to alter an incidence angle of the first wavelength light with respect to the non-linear optical crystal. A rotational driving controller detects a portion of an output of the second wavelength light, generates a rotational control signal of the non-linear optical crystal in accordance with a change in the output, and transmits the rotational control signal to the rotational driver. A beam location maintaining mirror retroreflects the second wavelength light, outputted from the non-linear optical crystal, along a substantially same path as that of the first wavelength light. Also, an output beam distributor guides the retroreflected second wavelength light in a desired output direction.

摘要翻译： 在波长转换激光器件中，激光源发射第一波长的光。 非线性光学晶体将第一波长光转换成第二波长光。 旋转驱动器旋转非线性光学晶体，以便改变第一波长光相对于非线性光学晶体的入射角。 旋转驱动控制器检测第二波长光的输出的一部分，根据输出的变化产生非线性光学晶体的旋转控制信号，并将旋转控制信号发送到旋转驱动器。 光束位置维持镜沿着与第一波长光基本相同的路径逆反射从非线性光学晶体输出的第二波长光。 此外，输出光束分配器引导回射的第二波长光在期望的输出方向上。

公开(公告)号：US20080056312A1

公开(公告)日：2008-03-06

申请号：US11812117

申请日：2007-06-15

申请人： Hong Ki Kim ,  Kiyoyuki Kawai ,  Yu Seung Kim

发明人： Hong Ki Kim ,  Kiyoyuki Kawai ,  Yu Seung Kim

IPC分类号： H01S3/10

CPC分类号： G02F1/3553

摘要： A wavelength conversion laser device and a nonlinear optical crystal used in the same. The wavelength conversion laser device includes a laser light source for emitting a predetermined wavelength beam, and a laser medium for exciting the predetermined wavelength beam from the laser light source into a fundamental beam. The wavelength conversion laser device further includes a nonlinear optical crystal composed of a KTiOPO4 (KTP) crystal having b-c crystal plane as an incident surface of the fundamental beam to provide type II phase matching conditions. The KTP crystal converts the fundamental wavelength beam into a second harmonic generation beam.

摘要翻译： 一种波长转换激光器件及其中使用的非线性光学晶体。 波长转换激光装置包括用于发射预定波长光束的激光光源和用于将来自激光光源的预定波长光束激发成基波束的激光介质。 波长转换激光器件还包括由具有b-c晶面的KTiOPO 4（KTP）晶体组成的非线性光学晶体，作为基波束的入射表面以提供II型相位匹配条件。 KTP晶体将基波长光束转换成二次谐波发生光束。

公开(公告)号：US20100135345A1

公开(公告)日：2010-06-03

申请号：US12699577

申请日：2010-02-03

申请人： Hong Ki Kim ,  Kiyoyuki Kawai ,  Yu Seung Kim

发明人： Hong Ki Kim ,  Kiyoyuki Kawai ,  Yu Seung Kim

IPC分类号： H01S3/10

CPC分类号： G02F1/3553

摘要： A wavelength conversion laser device and a nonlinear optical crystal used in the same. The wavelength conversion laser device includes a laser light source for emitting a predetermined wavelength beam, and a laser medium for exciting the predetermined wavelength beam from the laser light source into a fundamental beam. The wavelength conversion laser device further includes a nonlinear optical crystal composed of a KTiOPO4 (KTP) crystal having b-c crystal plane as an incident surface of the fundamental beam to provide type II phase matching conditions. The KTP crystal converts the fundamental wavelength beam into a second harmonic generation beam.

摘要翻译： 一种波长转换激光器件及其中使用的非线性光学晶体。 波长转换激光装置包括用于发射预定波长光束的激光光源和用于将来自激光光源的预定波长光束激发成基波束的激光介质。 波长转换激光器件还包括由具有b-c晶面作为基波束的入射表面的KTiOPO4（KTP）晶体组成的非线性光学晶体，以提供II型相位匹配条件。 KTP晶体将基波长光束转换成二次谐波发生光束。

公开(公告)号：US20080007006A1

公开(公告)日：2008-01-10

申请号：US11808721

申请日：2007-06-12

申请人： Kiyoyuki Kawai

发明人： Kiyoyuki Kawai

IPC分类号： F02F5/00

CPC分类号： F16J9/26 ,  C23C14/024 ,  C23C14/0641

摘要： A piston ring 1 for internal combustion engines comprises a hard film 2 formed on at least an outer circumferential sliding surface of the piston ring 1. The hard film 2 includes chromium, nitrogen and silicon as structural elements and the same crystal structure as CrN, and is composed of a crystal phase where silicon is contained in a solid solution state in a crystal lattice at an atomic ratio between 1 and 9.5 percent. The hard film may be the following film. Namely, a hard film is composed of a mixed phase of a crystal phase and an amorphous phase; the crystal phase includes chromium, nitrogen and silicon as structural elements and the same crystal structure as CrN and moreover includes silicon contained in a solid solution state in a crystal lattice; the amorphous phase includes silicon, nitrogen and chromium as structural elements; the ratio of the amorphous phase in the hard film is 4.5 percent or less; and the silicon content in the hard film is between 1 and 9.5 percent at an atomic ratio. The hard film may include aluminum, vanadium, titanium, zirconium, boron, carbon, oxygen or fluorine.

摘要翻译： 用于内燃机的活塞环1包括形成在活塞环1的至少外周滑动表面上的硬膜2。 硬膜2包括作为结构元素的铬，氮和硅作为与CrN相同的晶体结构，并且由在晶格中以固体状态包含硅的原子比为1〜9.5％的结晶相构成 。 硬膜可能是以下胶片。 即，硬膜由结晶相和非晶相的混合相构成， 结晶相包括铬，氮和硅作为结构元素，并且与CrN相同的晶体结构，还包括在晶格中固溶态的硅; 非晶相包括硅，氮和铬作为结构元素; 硬膜中的非晶相的比例为4.5％以下; 并且硬质膜中的硅含量在原子比为1〜9.5％。 硬膜可以包括铝，钒，钛，锆，硼，碳，氧或氟。

公开(公告)号：US07215687B2

公开(公告)日：2007-05-08

申请号：US11436631

申请日：2006-05-19

申请人： Kiyoyuki Kawai ,  Jae Chul Yong

发明人： Kiyoyuki Kawai ,  Jae Chul Yong

IPC分类号： H01S3/30 ,  H01S3/00

CPC分类号： H01S3/094003 ,  H01S3/094092

摘要： The invention provides an optical fiber laser apparatus. In the invention, an excitation light source outputs light of a given wavelength. A first optical fiber generates light of a plurality of wavelengths including light of a first wavelength by up-conversion from the output light. Also, a first resonator includes first and second mirrors provided on both ends of the first optical fiber, respectively. The first resonator selects the first wavelength light to output via the second mirror. Further, a second optical fiber amplifies an output of the first wavelength light incident from the first resonator. In addition, the first and second mirrors have higher reflexivity for the first wavelength light than the second wavelength light having higher gain per length of the optical fiber. The first fiber has a length set such that the first wavelength light oscillates preferentially over the second wavelength light.

摘要翻译： 本发明提供一种光纤激光装置。 在本发明中，激发光源输出给定波长的光。 第一光纤通过从输出光的上变频而产生包括第一波长的光的多个波长的光。 此外，第一谐振器包括分别设置在第一光纤两端的第一和第二反射镜。 第一谐振器选择通过第二反射镜输出的第一波长光。 此外，第二光纤放大从第一谐振器入射的第一波长光的输出。 此外，第一和第二反射镜对于第一波长的光具有比每个光纤长度增益更高的第二波长光更高的反射率。 第一光纤具有长度设置，使得第一波长光在第二波长光上优先振荡。