公开(公告)号：US6047009A

公开(公告)日：2000-04-04

申请号：US160345

申请日：1998-09-25

申请人： Takashi Adachi ,  Chiaki Goto

发明人： Takashi Adachi ,  Chiaki Goto

IPC分类号： G02F1/37 ,  G02F1/35 ,  H01S3/109 ,  H01S3/10

CPC分类号： H01S3/109 ,  G02F1/3501 ,  G02F1/37 ,  G02F2001/3505 ,  G02F2001/3548

摘要： In a wavelength conversion laser, a laser crystal is pumped by light and the wavelength of a solid state laser beam emitted from the laser crystal is converted by a nonlinear optical crystal having a periodic domain reversal structure and disposed in a resonator. A +c-face and a -c-face of the nonlinear optical crystal are electrically connected to each other at least at portions of the faces close to the optical path of the solid state laser beam.

摘要翻译： 在波长转换激光器中，激光晶体被光泵浦，并且由激光晶体发射的固体激光束的波长由具有周期性畴反转结构的非线性光学晶体转换并设置在谐振器中。 至少在靠近固态激光束的光路的面的部分处，非线性光学晶体的A + c面和-c面彼此电连接。

公开(公告)号：US07339975B2

公开(公告)日：2008-03-04

申请号：US10769995

申请日：2004-02-03

申请人： Fusao Yamanaka ,  Yoji Okazaki ,  Chiaki Goto ,  Shinichi Shimotsu

发明人： Fusao Yamanaka ,  Yoji Okazaki ,  Chiaki Goto ,  Shinichi Shimotsu

IPC分类号： H01S3/08

CPC分类号： G02B19/0057 ,  G02B19/0014 ,  G02B19/0028 ,  G02B19/009 ,  G02B27/0961 ,  H01S5/005 ,  H01S5/02284 ,  H01S5/4012 ,  H01S5/4031

摘要： (Problem to be solved) To provide a laser beam synthesizing apparatus which is small in size and high in output power.(Means for solving the problem) A convergent angle transforming optical system 30 is disposed further upstream of the upstream-most position Pa in the positions where the optical axes of beam bundles La, Lb, Lc . . . which are radiated from a plurality of semiconductor lasers 11A, 11B, 112C . . . and converged in the fast axis view by a converging/dispersion lens 120 intersect each other in the fast axis view, and the whole beam bundle made up of the beam bundles La, Lb, Lc . . . passed through the converging/dispersion lens 120 is converged in the fast axis view by the convergent angle transforming optical system 30 so that the angle of convergence of the whole beam bundle is made smaller in the fast axis view, and introduced into the core 41 of an optical fiber 40.

摘要翻译： （待解决的问题）提供一种尺寸小，输出功率高的激光束合成装置。 （解决问题的手段）在束流束束La，Lb，Lc的光轴的位置，将会聚角度变换光学系统30设置在最上游位置Pa的上游的上游。 。 。 它们从多个半导体激光器11A，11B，112C辐射。 。 。 并且通过在快轴视图中彼此相交的会聚/分散透镜120以及由束束La，Lb，Lc构成的整个束束而在快轴视图中会聚。 。 。 通过会聚/分散透镜120，通过会聚角度变换光学系统30在快轴视图中会聚，使得整个束束的会聚角度在快轴视图中变小，并被引入到 光纤40。

公开(公告)号：US06922288B2

公开(公告)日：2005-07-26

申请号：US10767457

申请日：2004-01-30

申请人： Fusao Yamanaka ,  Yoji Okazaki ,  Chiaki Goto

发明人： Fusao Yamanaka ,  Yoji Okazaki ,  Chiaki Goto

IPC分类号： G02B6/42 ,  G02B3/00 ,  G02B27/09 ,  H01S5/22 ,  G02B27/10 ,  G02B5/04 ,  F21K000/00

CPC分类号： G02B19/0057 ,  G02B19/0028 ,  G02B27/0905

摘要： In a laser light multiplexing apparatus: a collimating optical system collimates light beams emitted from semiconductor lasers so that the slow axes of the light beams become coplanar, and optical axes of the light beams become parallel to each other; a light beam rearrangement optical system constituted by prisms respectively arranged in correspondence with the light beams rearranges the light beams in such a manner that directions of the fast axes of the light beams are changed at different locations along a direction in which the light beams propagate, and the fast axes of the light beams become coplanar; and a convergence optical system converges a bundle of the light beams rearranged by the light beam rearrangement optical system, in directions of the fast axes and the slow axes of the light beams, and makes the converged bundle of the light beams enter an optical fiber.

摘要翻译： 在激光多路复用装置中：准直光学系统对从半导体激光器发出的光束进行准直，使得光束的慢轴变得共面，并且光束的光轴变得彼此平行; 由与光束对应地分别配置的棱镜构成的光束重排光学系统以沿着光束传播方向的不同位置改变光束的快轴方向的方式重新排列光束， 光束的快轴变为共面; 会聚光学系统在由光束重排光学系统重新排列的光束在光束的快轴和慢轴方向上收敛，并使光束的会聚光束进入光纤。

公开(公告)号：US5652757A

公开(公告)日：1997-07-29

申请号：US665916

申请日：1996-06-19

申请人： Yoji Okazaki ,  Chiaki Goto ,  Hiroaki Hyuga ,  Akinori Harada

发明人： Yoji Okazaki ,  Chiaki Goto ,  Hiroaki Hyuga ,  Akinori Harada

IPC分类号： G02F1/35 ,  G02F1/355 ,  G02F1/37 ,  H01S3/109 ,  H01S3/10

CPC分类号： G02F1/37 ,  H01S3/109 ,  G02F1/3553 ,  G02F2001/3546

摘要： In an optical wavelength converting apparatus, a fundamental wave impinges upon a crystal of a nonlinear optical material, the type II of phase matching between the fundamental wave and its second harmonic is effected, and the second harmonic of the fundamental wave is thereby radiated out of the optical wavelength converting apparatus. Two crystals constituted of the same material are employed as the crystal. The two crystals have equal lengths and are located in orientations such that corresponding optic axes may be shifted 90.degree. from each other. The optical wavelength converting apparatus yields the second harmonic having the maximum possible output power and yet can be kept small in size and low in cost.

摘要翻译： 在光波长变换装置中，基波对非线性光学材料的晶体入射，实现了基波和二次谐波之间的相位匹配型II，从而将基波的二次谐波从 光波长转换装置。 使用由相同材料构成的两个晶体作为晶体。 两个晶体具有相等的长度并且位于取向上，使得相应的光轴彼此相差90度。 光波长转换装置产生具有最大可能输出功率的二次谐波，并且可以保持尺寸小，成本低。

公开(公告)号：US5278851A

公开(公告)日：1994-01-11

申请号：US9146

申请日：1993-01-26

申请人： Chiaki Goto

发明人： Chiaki Goto

IPC分类号： G02F1/37 ,  H01S3/0941 ,  H01S3/098 ,  H01S3/106 ,  H01S3/109

CPC分类号： H01S3/08036 ,  H01S3/0941 ,  H01S3/109 ,  H01S3/1095

摘要： A solid-state laser having a laser resonator which includes an etalon to allow a single longitudinal mode of oscillation to occur in the width of the wavelength which permits the oscillation of the medium of the solid-state laser. The etalon is interposed in the resonator which is constituted of a surface of a resonant mirror and one end surface of a solid-state laser medium, and wherein the interval of the longitudinal modes of the etalon is set to be in the range from approximately one half to one width of the oscillation wavelength of the medium of a solid-state laser. At the same time, the ratio, with respect to the optical length, of the etalon to the resonator is selected to be about a half integer.

摘要翻译： 一种具有激光谐振器的固体激光器，该激光谐振器包括标准具，以允许单个纵向振荡模式发生在允许固态激光器的介质的振荡的波长宽度上。 标准具被插入由共振反射镜的表面和固态激光介质的一个端面构成的谐振器中，并且标准具的纵向模式的间隔设定在从大约一个的范围内 固态激光介质的振荡波长的一半宽度。 同时，将标准具相对于谐振器的相对于光学长度的比率选择为约一整数。

公开(公告)号：US4591714A

公开(公告)日：1986-05-27

申请号：US711167

申请日：1985-03-13

申请人： Chiaki Goto ,  Kazuo Horikawa ,  Masaru Noguchi

发明人： Chiaki Goto ,  Kazuo Horikawa ,  Masaru Noguchi

IPC分类号： G03B42/02 ,  A61B6/00 ,  G01T1/29 ,  G02B5/04 ,  G02B6/00

CPC分类号： G01T1/2014

摘要： A light guide member comprises three optical blocks. The first optical block is provided with a light input face positioned close to and approximately in parallel with a stimulable phosphor sheet carrying a radiation image stored therein, and a light output face parallel with the light input face. The second optical block is provided with a light input face slightly spaced apart from the light output face of the first optical block, a dichroic optical plane extending upward from one end of the light input face at an angle of approximately 45.degree., and a light output face extending downward from an upper end of the dichroic optical plane. The dichroic optical plane transmits stimulating rays and reflects light emitted by the stimulable phosphor sheet upon exposure to stimulating rays. The third optical block is provided with a light input face slightly spaced apart from the light output face of the second optical block, and upper and lower total reflection planes extending horizontally from upper and lower ends of the light input face.

摘要翻译： 导光构件包括三个光学块。 第一光学块设置有光输入面，其靠近并大致平行于携带存储在其中的放射线图像的可刺激的荧光片，以及与光输入面平行的光输出面。 第二光学块设置有与第一光学块的光输出面略微间隔开的光输入面，从光输入面的一端以大约45°的角度向上延伸的二向色光学平面，以及光 输出面从分色光学平面的上端向下延伸。 二色性光学平面透射刺激光线并且在暴露于刺激光线时反射由可刺激的荧光体片发射的光。 第三光学块设置有与第二光学块的光输出面略微间隔开的光输入面，以及从光输入面的上端和下端水平延伸的上下全反射面。

公开(公告)号：US5080462A

公开(公告)日：1992-01-14

申请号：US608502

申请日：1990-11-02

申请人： Chiaki Goto

发明人： Chiaki Goto

IPC分类号： G02F1/37 ,  G02F1/383

CPC分类号： G02F1/383 ,  G02F2001/372

摘要： An optical wavelength converter device is of the fiber type including a cladding and a core surrounded by the cladding, the cladding having a lower refractive index than the refractive index of the core. The optical wavelength converter device serves to convert a fundamental wave into a secondary harmonic wave. The cladding has an exit end surface shaped for converting the wavefront of a wavelength-converted wave from the conical wavefront into a planar or spherical wavefront. A optical wavelength converter system comprises such an optical wavelength converter device and an optical device for diffractively or refractively converting the wavefront of the wavelength-converted wave from a conical wavefront into a planar or spherical wavefront.

摘要翻译： 光波长转换器装置是包括包层和被包层包围的芯的光纤类型，该包层的折射率低于芯的折射率。 光波长转换器用于将基波转换成二次谐波。 包层具有出射端表面，其形状用于将波长转换波的波前从锥形波前转换为平面或球面波前。 光波长转换器系统包括这样的光波长转换器装置和用于将波长转换波的波前从锥形波阵面衍射或折射变换成平面或球面波前的光学装置。

公开(公告)号：US5031999A

公开(公告)日：1991-07-16

申请号：US523693

申请日：1990-05-15

申请人： Akinori Harada ,  Chiaki Goto

发明人： Akinori Harada ,  Chiaki Goto

IPC分类号： G02F1/377 ,  G02F1/383

CPC分类号： G02F1/377 ,  G02F1/383

摘要： An optical wavelength converter device comprises a cladding and a waveguide disposed in the cladding. The waveguide is made of an organic nonlinear optical material such as PRA which has a first refractive index with respect to the wavelength of the wavelength-converted wave and a second refractive index with respect to the wavelength of the fundamental wave, the first refractive index being lower than the second refractive index. Alternatively, the first and second refractive indexes are substantially the same as each other, and the cladding is made of a material which has a third refractive index with respect to the wavelength of the wavelength-converted wave and a fourth refractive index with respect to the wavelength of the fundamental wave, the third refractive index being substantially the same as the fourth refractive index. The effective refractive index with respect to the fundamental wave which is guided in a zero-order mode and the effective refractive index with respect to the wavelength-converted wave which is guided in the zero-order mode are equal to each other.

公开(公告)号：US5029976A

公开(公告)日：1991-07-09

申请号：US423325

申请日：1989-10-18

申请人： Chiaki Goto

发明人： Chiaki Goto

IPC分类号： G02F1/37 ,  G02F1/383

CPC分类号： G02F1/383

摘要： A fiber Cerenkov-type optical wavelength converter module includes an optical wavelength converter device comprising an optical fiber including a cladding having a first refractive index and a core of a nonlinear optical material disposed in the cladding, said core having a second refractive index higher than the first refractive index, whereby the optical fiber converts the wavelength of a fundamental wave introduced into the core and radiates a wavelength-converted wave into the cladding. A laser beam is emitted from a semiconductor laser and applied as the fundamental wave to the optical wavelength converter device. The temperature of the optical wavelength converter device, or the temperatures of the optical wavelength converter device and the semiconductor laser, are regulated such that the tolerances specified for the length of the optical fiber, the diameter of the core, and other dimensions can be increased. Therefore, the optical wavelength converter device and the optical wavelength converter module can be fabricated with greater ease.

摘要翻译： 光纤切伦科夫型光波长转换器模块包括光波长转换器装置，其包括光纤，该光纤包括具有第一折射率的包层和设置在包层中的非线性光学材料的芯，所述芯具有高于 第一折射率，由此光纤转换引入芯中的基波的波长并将波长转换波辐射到包层中。 激光束从半导体激光器发射并作为基波施加到光学波长转换器装置。 调节光波长转换器装置的温度或光波长转换器装置和半导体激光器的温度，使得可以增加为光纤的长度，芯的直径和其他尺寸规定的公差 。 因此，可以更容易地制造光波长转换器装置和光波长转换器模块。

公开(公告)号：US4829180A

公开(公告)日：1989-05-09

申请号：US691043

申请日：1985-01-14

申请人： Chiaki Goto ,  Masaru Noguchi

发明人： Chiaki Goto ,  Masaru Noguchi

IPC分类号： G03B42/02 ,  G01T1/29 ,  H04N1/028 ,  H04N1/10

CPC分类号： H04N1/0283 ,  G01T1/2014 ,  H04N1/0281 ,  H04N1/02815 ,  H04N1/1008

摘要： A radiation image read-out apparatus comprises a stimulating ray optical system for exposing a stimulable phosphor carrying a radiation image stored therein to stimulating rays, a photodetector for detecting light emitted by the stimulable phosphor upon exposure to stimulating rays, and a light guide member for guiding the emitted light to the photodetector. A dichroic optical plane which selectively reflects either the stimulating rays or the light emitted by the stimuable phosphor and selectively passes the other is positioned in an optical path of the light guide member. The stimulating ray optical system is positioned so that the stimulating rays directly impinge upon the dichroic optical plane and come out of a light input face of the light guide member positioned close to the stimulable phosphor by being reflected by or passed through the dichroic optical plane. The light input face of the light guide member is preferably provided with a film for preventing reflection of stimulating rays.

摘要翻译： 辐射图像读出装置包括：刺激射线光学系统，用于使携带其中存储的放射线图像的刺激性荧光体曝光以刺激光线;光电检测器，用于在暴露于刺激光线时检测由可刺激磷光体发射的光;以及导光部件， 将发射的光引导到光电检测器。 选择性地反射刺激光线或由可刺激荧光体发射的光并且选择性地通过另一个的二向色光学平面位于导光部件的光路中。 刺激射线光学系统被定位成使得刺激光线直接照射在分色光学平面上，并且通过被二色性光学平面的反射或穿过二色性光学平面而被定位在靠近可刺激的荧光体的导光部件的光输入面。 导光构件的光输入面优选设置有用于防止刺激射线反射的膜。