公开(公告)号：US5566258A

公开(公告)日：1996-10-15

申请号：US487517

申请日：1995-06-07

申请人： Masami Hatori ,  Takashi Yamada ,  Shinichiro Sonoda

发明人： Masami Hatori ,  Takashi Yamada ,  Shinichiro Sonoda

IPC分类号： G02F1/035 ,  G02F1/295 ,  G02B6/10

CPC分类号： G02F1/035 ,  G02F2201/07 ,  G02F2203/21

摘要： A waveguide type electro-optical element is made up of a proton-exchanged optical waveguide formed on a substrate which possesses an electro-optical effect. At least one pair of electrodes is formed on the substrate adjacent to the optical waveguide with a buffer layer being disposed between the substrate and the electrodes. A guide beam propagating through the waveguide is diffracted as a result of the application of a voltage to the electrodes. The buffer layer is made of material which has a specific resistance ranging between 10.sup.7 -10.sup.11 .OMEGA.cm. The optical waveguide may be of a form having a split-type optical waveguide consisting of the combination of two Y-shaped waveguides, and a pair of channel optical waveguides constituting a directional coupler.

摘要翻译： 波导型电光元件由形成在具有电光效应的基板上的质子交换光波导构成。 在与光波导相邻的衬底上形成至少一对电极，其中缓冲层设置在衬底和电极之间。 作为向电极施加电压的结果，传播通过波导的引导光束被衍射。 缓冲层由具有107-1011欧姆·厘米之间的电阻率的材料制成。 光波导可以是具有由两个Y形波导的组合组成的分裂型光波导和构成定向耦合器的一对沟道光波导的形式。

公开(公告)号：US20060251144A1

公开(公告)日：2006-11-09

申请号：US11393836

申请日：2006-03-31

申请人： Kazuhiko Nagano ,  Shinichiro Sonoda ,  Masami Hatori ,  Hideo Miura ,  Shinichi Shimotsu

发明人： Kazuhiko Nagano ,  Shinichiro Sonoda ,  Masami Hatori ,  Hideo Miura ,  Shinichi Shimotsu

IPC分类号： H01S3/08

CPC分类号： G02B6/4296 ,  G02B6/4204 ,  G02B6/4292 ,  H01S5/02212 ,  H01S5/0222 ,  H01S5/02284 ,  H01S5/32341 ,  H01S5/4012

摘要： A laser module includes: a chassis having a light-output window from which one or more laser beams are outputted; a hermetically sealed package which is fixed to the chassis; one or more semiconductor laser elements which are arranged in the hermetically sealed package, and emit the one or more laser beams; a transparent member which is arranged to cover the light-output window; an optical fiber which has a light-entrance end face, and is arranged outside the chassis so that the light-entrance end face is in contact with the transparent member; and an optical condensing system which is arranged inside the chassis, and makes the one or more laser beams pass through the transparent member and be condensed on the light-entrance end face. The transparent member and the optical fiber are detachably attached to the chassis.

公开(公告)号：US07572068B2

公开(公告)日：2009-08-11

申请号：US11393836

申请日：2006-03-31

申请人： Kazuhiko Nagano ,  Shinichiro Sonoda ,  Masami Hatori ,  Hideo Miura ,  Shinichi Shimotsu

发明人： Kazuhiko Nagano ,  Shinichiro Sonoda ,  Masami Hatori ,  Hideo Miura ,  Shinichi Shimotsu

IPC分类号： G02B6/36

CPC分类号： G02B6/4296 ,  G02B6/4204 ,  G02B6/4292 ,  H01S5/02212 ,  H01S5/0222 ,  H01S5/02284 ,  H01S5/32341 ,  H01S5/4012

摘要： A laser module includes: a chassis having a light-output window from which one or more laser beams are outputted; a hermetically sealed package which is fixed to the chassis; one or more semiconductor laser elements which are arranged in the hermetically sealed package, and emit the one or more laser beams; a transparent member which is arranged to cover the light-output window; an optical fiber which has a light-entrance end face, and is arranged outside the chassis so that the light-entrance end face is in contact with the transparent member; and an optical condensing system which is arranged inside the chassis, and makes the one or more laser beams pass through the transparent member and be condensed on the light-entrance end face. The transparent member and the optical fiber are detachably attached to the chassis.

摘要翻译： 激光模块包括：具有输出一个或多个激光束的光输出窗口的底架; 一个密封的包装，固定在底盘上; 一个或多个半导体激光元件，其布置在所述密封封装中，并且发射所述一个或多个激光束; 布置成覆盖光输出窗的透明构件; 具有光入射端面的光纤，并且布置在所述底架的外侧，使得所述光入射端面与所述透明构件接触; 以及布置在所述底盘内的光学冷凝系统，并使所述一个或多个激光束通过所述透明构件并在所述光入射端面上被冷凝。 透明构件和光纤可拆卸地附接到底架。

公开(公告)号：US06944194B1

公开(公告)日：2005-09-13

申请号：US09517589

申请日：2000-03-03

申请人： Masami Hatori ,  Shinichiro Sonoda

发明人： Masami Hatori ,  Shinichiro Sonoda

IPC分类号： G02F1/37 ,  H01S3/08 ,  H01S3/10 ,  H01S5/00 ,  H01S5/06 ,  H01S5/062 ,  H01S5/14

CPC分类号： H01S5/141 ,  H01S3/109 ,  H01S5/005 ,  H01S5/142 ,  H01S5/143 ,  H01S5/146

摘要： A wavelength selecting optical element such as a narrow band-pass filter or the like is provided between a semiconductor laser and a light wavelength conversion element formed of a bulk-shaped wavelength conversion crystal. The wavelength selecting optical element selects a wavelength of a laser beam which is to be reflected by an end surface of the light wavelength conversion element to be fed back to the semiconductor laser.

摘要翻译： 在半导体激光器和由体形波长转换晶体形成的光波长转换元件之间提供诸如窄带通滤波器等的波长选择光学元件。 波长选择光学元件选择要由光波长转换元件的端面反射以反射到半导体激光器的激光束的波长。

公开(公告)号：US5878175A

公开(公告)日：1999-03-02

申请号：US701055

申请日：1996-08-21

申请人： Shinichiro Sonoda ,  Masami Hatori

发明人： Shinichiro Sonoda ,  Masami Hatori

IPC分类号： G02F1/035 ,  G02F1/295

CPC分类号： G02F1/035 ,  G02F2201/07 ,  G02F2201/302 ,  G02F2203/21

摘要： An electro-optical waveguide element with reduced DC drift phenomena is presented. The waveguide element is made up of an optical waveguide formed on a substrate possessing electro-optical effects, at least a pair of electrodes closely attached to the optical waveguide with a buffer layer sandwiched between the substrate and the electrodes, and a driver circuit for applying a voltage between the electrodes. The buffer layer is made of a material having a dielectric constant in the range of 20-1000. The buffer layer is more preferably made of a material having a dielectric constant in the range of 20-200. The material of the buffer layer is selected from the group consisting of HfO.sub.2, TiO.sub.2, SrTiO.sub.3, BaTiO.sub.3, LiNbO.sub.3, LiTaO.sub.3, Pb(Zr, Ti)O.sub.3, and (Pb, La)(Zr, Ti)O.sub.3.

摘要翻译： 提出了具有降低的DC漂移现象的电光波导元件。 波导元件由形成在具有电光效应的基板上的光波导构成，至少一对电极与光波导紧密连接，缓冲层夹在基板和电极之间，驱动电路用于施加 电极之间的电压。 缓冲层由介电常数在20-1000范围内的材料制成。 缓冲层更优选由介电常数在20-200范围内的材料制成。 缓冲层的材料选自HfO 2，TiO 2，SrTiO 3，BaTiO 3，LiNbO 3，LiTaO 3，Pb（Zr，Ti）O 3和（Pb，La）（Zr，Ti）O 3。

公开(公告)号：US06839365B1

公开(公告)日：2005-01-04

申请号：US09698209

申请日：2000-10-30

申请人： Shinichiro Sonoda ,  Hideo Miura ,  Masami Hatori

发明人： Shinichiro Sonoda ,  Hideo Miura ,  Masami Hatori

IPC分类号： G02F1/35 ,  G02F1/37 ,  G02F1/377 ,  H01S5/022 ,  H01S5/068 ,  H01S5/14 ,  H01S3/10

CPC分类号： G02F1/3544 ,  G02F1/377 ,  G02F1/3775 ,  G02F2001/3505 ,  G02F2001/3509 ,  G02F2001/3548 ,  H01S3/1062 ,  H01S5/0092 ,  H01S5/02248 ,  H01S5/02284 ,  H01S5/02438 ,  H01S5/141

摘要： A light wavelength converting element which can reduce an amount of light fed-back to a semiconductor laser. The light wavelength converting element converts a wavelength of a fundamental wave which enters from a first end surface side of an optical waveguide to thereby emit a converted wavelength wave from a second end surface side thereof. The second end surface is inclined with respect to the side surface of the optical waveguide. Also provided is a wavelength stabilized laser having a semiconductor laser, a device which feeds a laser beam emitted from the semiconductor laser back to the semiconductor laser, and a band-pass filter. An optical length between the semiconductor laser and the device is made to be longer than a coherent length of the semiconductor laser, thus improving linearity of a current vs. light output characteristic. Further, a light wavelength converting unit and a light wavelength converting module are provided in which, since an LD-SHG unit formed by a semiconductor laser and a light wavelength converting element is hermetically sealed in a package, the LD-SHG unit can be manufactured easily and has excellent stability over time.

公开(公告)号：US5838486A

公开(公告)日：1998-11-17

申请号：US759794

申请日：1996-12-04

申请人： Shinichiro Sonoda ,  Isao Tsuruma ,  Masami Hatori ,  Kenji Matsumoto

发明人： Shinichiro Sonoda ,  Isao Tsuruma ,  Masami Hatori ,  Kenji Matsumoto

IPC分类号： G02F1/37 ,  G02F1/35 ,  G02F1/377

CPC分类号： G02F1/3775 ,  G02F2001/3548

摘要： An optical wavelength conversion element includes an optical waveguide which is formed on a ferroelectric crystal substrate having a nonlinear optical effect and extends along one surface of the substrate, and domain reversals which are periodically formed in the optical waveguide and arranged in a direction. The orientation of the spontaneous polarization of the substrate is reversed in the domain reversals and the optical wavelength conversion element converts the wavelength of a fundamental wave travelling in the direction in which the domain reversals are arranged under the guidance of the optical waveguide. The orientation of the spontaneous polarization of the substrate is at an angle .theta. larger than 0.degree. and smaller than 90.degree. to the surface of the substrate in a plane normal to the direction in which the fundamental wave is guided.

摘要翻译： 光波长转换元件包括形成在具有非线性光学效应并沿着衬底的一个表面延伸的铁电晶体衬底的光波导和在光波导中周期性地形成并且沿一个方向布置的畴反转。 在畴反转中，衬底的自发极化的取向反转，并且光波长转换元件在光波导的引导下转换沿畴布置反转方向行进的基波的波长。 在与基波方向垂直的平面中，衬底的自发极化的取向与衬底表面成0°且小于90°的角度。

公开(公告)号：US07777892B2

公开(公告)日：2010-08-17

申请号：US11723617

申请日：2007-03-21

申请人： Masami Hatori

发明人： Masami Hatori

IPC分类号： G01B9/02

CPC分类号： G02B6/2843 ,  G01N21/4795

摘要： In an optical tomography system, a polarization changing system which converts linearly polarized light too non-linearly polarized light is provided in at least one of a light source unit, an optical path from the light source unit to a light dividing system, the optical path of the measuring light from the light dividing system to an object, the optical path of the reflected light from the object to the combining system and the optical path of the reference light from the light dividing system to the combining system. The polarization changing system is, for instance, a polarization-preserving optical fiber which is disposed so that the direction of polarization of the linearly polarized light and the direction of axis of polarization of the linearly polarized light differ from each other.

摘要翻译： 在光学断层摄影系统中，在光源单元，从光源单元到分光系统的光路中的至少一个中设置有将线偏振光转换成非线性偏振光的偏振变换系统，光路 从光分离系统到物体的测量光，从物体到合成系统的反射光的光路和从分光系统到组合系统的参考光的光路。 偏振变化系统例如是偏振保留光纤，其设置成使得线偏振光的偏振方向和线偏振光的偏振轴的方向彼此不同。

公开(公告)号：US07705992B2

公开(公告)日：2010-04-27

申请号：US11839139

申请日：2007-08-15

申请人： Masami Hatori ,  Kiichi Kato

发明人： Masami Hatori ,  Kiichi Kato

IPC分类号： G01B9/02 ,  G01B11/02

CPC分类号： G01B9/02004 ,  G01B9/02003 ,  G01B9/02044 ,  G01B9/02091 ,  G01B2290/45 ,  G01B2290/70

摘要： A polarization maintaining optical fiber, for guiding a measuring light beam, is provided within a probe. The probe is configured to be rotatable in the circumferential direction of the polarization maintaining optical fiber. A polarization direction rotator, for rotating the polarization direction of the measuring light beam that enters the polarization maintaining optical fiber accompanying rotation of the probe, is provided in order to maintain a state in which the polarization direction of the measuring light beam that enters the polarization maintaining optical fiber and the direction of the polarization axis of the polarization maintaining optical fiber are matched.

摘要翻译： 在探针内设置用于引导测量光束的偏振保持光纤。 探针构造成能够在偏振保持光纤的圆周方向上旋转。 为了保持进入极化的测量光的偏振方向的状态，提供了用于旋转进入与探头的旋转相关的偏振保持光纤的测量光束的偏振方向的偏振方向旋转体 保持光纤和偏振保持光纤的偏振轴的方向相匹配。

公开(公告)号：US07633623B2

公开(公告)日：2009-12-15

申请号：US11529436

申请日：2006-09-29

申请人： Masami Hatori

发明人： Masami Hatori

IPC分类号： G01B9/02

CPC分类号： G01B9/02004 ,  A61B5/0066 ,  A61B5/0073 ,  G01B9/02003 ,  G01B9/02044 ,  G01B9/02091 ,  G01B2290/35 ,  G01N21/4795

摘要： Light emitted from the light source unit is divided into measuring light and reference light. An optical path length of the measuring light or the reference light which has been divided by the light dividing means is adjusted. Interference light of the reflected light and the reference light is detected and a tomographic image of the object is obtained on the basis of the detected interference light. The optical path length is adjusted by a reflecting mirror which reflects the measuring light or the reference light radiated from the optical fiber, a first lens which is disposed between the reflecting mirror and the optical fiber and a second lens which collects the measuring light or the reference light made parallel by the first lens on the reflecting mirror and makes parallel the measuring light or the reference light reflected by the reflecting mirror.

摘要翻译： 从光源单元发射的光被分为测量光和参考光。 调整由光分离机构分割的测量光或参考光的光程长度。 检测反射光和参考光的干涉光，并且基于检测到的干涉光获得物体的断层图像。 光路长度由反射从光纤辐射的测量光或参考光的反射镜调节，设置在反射镜和光纤之间的第一透镜和收集测量光或第二透镜的第二透镜 通过反射镜上的第一透镜平行的参考光，使与测量光或由反射镜反射的参考光平行。