公开(公告)号：US09214784B2

公开(公告)日：2015-12-15

申请号：US14374696

申请日：2012-03-19

Applicant: Kyosuke Kuramoto ,  Takayuki Yanagisawa ,  Yoshihito Hirano

Inventor： Kyosuke Kuramoto ,  Takayuki Yanagisawa ,  Yoshihito Hirano

IPC: H01S3/091 ,  H01S5/04 ,  G02F1/377 ,  H01S3/109 ,  H01S3/06 ,  H01S3/0941 ,  H01S3/16 ,  H01S3/04 ,  G02F1/35

CPC classification number: H01S5/041 ,  G02F1/377 ,  G02F2001/3509 ,  H01S3/0401 ,  H01S3/0405 ,  H01S3/0612 ,  H01S3/0615 ,  H01S3/0621 ,  H01S3/0625 ,  H01S3/0627 ,  H01S3/09415 ,  H01S3/109 ,  H01S3/1611 ,  H01S3/1673 ,  H01S2301/02

Abstract: An end surface 3b of a solid-state laser element 3 is sloped in such a way that, assuming that laser light is incident upon air from the end surface, an angle of incidence which a normal to an inner side of the end surface forms with a traveling direction of the laser light substantially matches the Brewster angle at the incidence plane, an end surface 4a of a wavelength conversion element 4 is sloped in such a way that, assuming that the laser light is incident upon air from the end surface, an angle of incidence which a normal to an inner side of the end surface forms with a traveling direction of the laser light substantially matches the Brewster angle at the incidence plane, and the end surface 3b and the end surface 4b are arranged in such a way as to be opposite to each other.

Abstract translation: 固体激光元件3的端面3b以这样的方式倾斜，即假设激光从端面入射到空气上，与端面的内侧垂直的入射角与 激光的行进方向基本上与入射面处的布鲁斯特角度匹配，波长转换元件4的端面4a倾斜，假设激光从端面入射到空气上， 与激光的行进方向形成的端面的内侧的法线的入射角基本上与入射面处的布鲁斯特角度匹配，端面3b和端面4b以如下方式配置： 相互对立。

公开(公告)号：US20140232467A1

公开(公告)日：2014-08-21

申请号：US14237776

申请日：2012-08-24

Applicant: Kenji Mukai ,  Kenichi Horiguchi ,  Morishige Hieda ,  Katsuya Kato ,  Yoshihito Hirano ,  Kazuya Yamamoto ,  Hiroyuki Joba ,  Teruyuki Shimura

Inventor： Kenji Mukai ,  Kenichi Horiguchi ,  Morishige Hieda ,  Katsuya Kato ,  Yoshihito Hirano ,  Kazuya Yamamoto ,  Hiroyuki Joba ,  Teruyuki Shimura

IPC: H03F3/195

CPC classification number: H03F3/195 ,  H03F1/0277 ,  H03F3/211 ,  H03F3/68 ,  H03F3/72 ,  H03F2200/111 ,  H03F2200/255 ,  H03F2200/423 ,  H03F2200/451 ,  H03F2203/7206 ,  H03F2203/7209

Abstract: A high-frequency amplifier module includes a driver-stage amplifier 3 that amplifies an RF signal input thereto from an RF input terminal 1, and a final-stage amplifier 5 that amplifies the signal amplified by the driver-stage amplifier 3 and outputs the signal after the amplification to an RF output terminal 7. The driver-stage amplifier 3 is fabricated on a silicon substrate 11, while the final-stage amplifier 5 is fabricated on a gallium arsenide substrate. This configuration downsizes the cost while maintaining a high-frequency characteristic comparable to that in the case where all components of an entire module are fabricated on a gallium arsenide substrate 71.

Abstract translation: 高频放大器模块包括：放大从RF输入端子1输入的RF信号的驱动级放大器3和放大由驱动级放大器3放大的信号的末级放大器5，并输出信号 在放大到RF输出端子7之后。驱动级放大器3制造在硅衬底11上，而最后级放大器5制造在砷化镓衬底上。 这种结构使成本降低，同时保持与在砷化镓基板71上制造整个模块的所有部件的情况相当的高频特性。

公开(公告)号：US20110255562A1

公开(公告)日：2011-10-20

申请号：US13141910

申请日：2009-02-05

Applicant: Shuhei Yamamoto ,  Yosuke Akino ,  Takayuki Yanagisawa ,  Yoshihito Hirano

Inventor： Shuhei Yamamoto ,  Yosuke Akino ,  Takayuki Yanagisawa ,  Yoshihito Hirano

IPC: H01S3/10 ,  H01S3/13

CPC classification number: H01S3/042 ,  H01S3/0092 ,  H01S3/0405 ,  H01S3/0632 ,  H01S3/0804 ,  H01S3/08072 ,  H01S3/094076 ,  H01S3/09415 ,  H01S3/1028 ,  H01S3/2383 ,  H01S5/4025 ,  H04N9/3161

Abstract: A plane waveguide type laser according to the present invention includes: a plate-shaped laser medium (5); a semiconductor laser (1) which causes excitation light to enter an end surface (5a) of the laser medium (5); first and second claddings (4a and 4b) which are bonded to lower and upper surfaces of the laser medium (5), respectively, to form a waveguide in a vertical direction; a comb heat sink (2) bonded to a lower surface of the first cladding (4a); and thermal lens producing means (20) bonded to an upper surface of the second cladding (4b). In this structure, laser oscillation in the vertical direction is performed in a waveguide mode of the laser medium (5), and the thermal lens producing means (20) forms a periodic lens effect in the laser medium (5) to perform laser oscillation in a lateral direction in a plurality of resonant modes. Therefore, a resonator having a small round-trip loss maybe formed without depending on a size of a thermal lens produced by excitation, and hence a rising characteristic of a pulse operation or a CW operation may be smoothed to obtain high-power stable output.

Abstract translation: 根据本发明的平面波导型激光器包括：板状激光介质（5）; 使激发光进入激光介质（5）的端面（5a）的半导体激光器（1）; 第一和第二包层（4a和4b），其分别结合到激光介质（5）的下表面和上表面，以在垂直方向上形成波导; 结合到第一包层（4a）的下表面的梳形散热器（2）; 以及粘合到第二包层（4b）的上表面的热透镜产生装置（20）。 在这种结构中，在激光介质（5）的波导模式中执行垂直方向的激光振荡，并且热透镜产生装置（20）在激光介质（5）中形成周期性透镜效应，以在 多个谐振模式中的横向方向。 因此，可以在不依赖于通过激励产生的热透镜的尺寸的情况下形成具有小的往返损耗的谐振器，因此可以平滑脉冲操作或CW操作的上升特性以获得高功率稳定的输出。

公开(公告)号：US20100303120A1

公开(公告)日：2010-12-02

申请号：US12675125

申请日：2007-08-30

Applicant: Shuhei Yamamoto ,  Takayuki Yanagisawa ,  Yasuharu Koyata ,  Yoshihito Hirano

Inventor： Shuhei Yamamoto ,  Takayuki Yanagisawa ,  Yasuharu Koyata ,  Yoshihito Hirano

IPC: H01S3/06

CPC classification number: H01S3/0632 ,  H01S3/0405 ,  H01S3/0606 ,  H01S3/0615 ,  H01S3/0621 ,  H01S3/0625 ,  H01S3/09415 ,  H01S3/109 ,  H01S3/2383 ,  H01S5/4031 ,  H01S2301/02

Abstract: To suppress the amplification of spontaneous emission light in a principal plane width direction to thereby suppress a gain in directions other than a beam axis direction and output a high-power laser, in a solid-state laser element of a plane waveguide type that causes a fundamental wave laser beam to oscillate in a beam axis direction in a laser medium of a flat shape and forms a waveguide structure in a thickness direction as a direction perpendicular to a principal plane of the flat shape in the laser medium, inclined sections 12 are provided on both sides of the laser medium, the inclined sections 12 inclining a predetermined angle to reflect spontaneous emission light in the laser medium to a principal plane side of the flat shape, the spontaneous emission light traveling in the beam axis direction and a principal plane width direction as a direction perpendicular to the thickness direction.

Abstract translation: 为了抑制在主平面宽度方向上的自发发射光的放大，从而抑制波束轴方向以外的方向的增益并输出大功率激光，在平面波导型的固体激光元件中， 基波激光束在平坦形状的激光介质中在光束轴方向上振荡，并且在激光介质中形成作为与平面形状的主平面垂直的方向的厚度方向的波导结构，设置倾斜部12 在激光介质的两侧，倾斜部分12倾斜预定角度以将激光介质中的自发发射光反射到平面形状的主平面侧，在射束轴线方向上行进的自发射光和主平面宽度 方向作为垂直于厚度方向的方向。

公开(公告)号：US20100303108A1

公开(公告)日：2010-12-02

申请号：US12677827

申请日：2007-09-12

Applicant: Yasuharu Koyata ,  Takayuki Yanagisawa ,  Shuhei Yamamoto ,  Yoshihito Hirano ,  Tsutomu Nagatsuka

Inventor： Yasuharu Koyata ,  Takayuki Yanagisawa ,  Shuhei Yamamoto ,  Yoshihito Hirano ,  Tsutomu Nagatsuka

IPC: H01S3/10

CPC classification number: G02F1/3544 ,  G02F1/3775 ,  H01S3/0092

Abstract: A wavelength converting element that is of a planar waveguide type, includes a plate-like nonlinear optical material, and performs a wavelength conversion on a fundamental wave of a laser beam by propagating the fundamental wave in a plurality of laser oscillation modes in a direction perpendicular to a main surface of the plate-like nonlinear optical material, the direction being perpendicular to an optical axis, wherein periods of polarization inversions of the nonlinear optical material are changed so that each of the periods has a width of a phase matching band A that includes phase matching conditions of at least two of the plurality of laser oscillation modes and so that a non-polarization-inversion region and a polarization inversion region are formed in the nonlinear optical material.

Abstract translation: 平面波导型的波长转换元件包括板状非线性光学材料，并且通过在垂直方向上以多个激光振荡模式传播基波来对激光束的基波进行波长转换 到板状非线性光学材料的主表面，其方向垂直于光轴，其中改变非线性光学材料的偏振反转周期，使得每个周期具有相位匹配带A的宽度， 包括多个激光振荡模式中的至少两个的相位匹配条件，并且在非线性光学材料中形成非极化反转区域和极化反转区域。

公开(公告)号：US20080095202A1

公开(公告)日：2008-04-24

申请号：US11579454

申请日：2005-03-30

Applicant: Takayuki Yanagisawa ,  Yoshihito Hirano ,  Syuhei Yamamoto ,  Masao Imaki ,  Kiyohide Sakai ,  Yasuharu Koyata

Inventor： Takayuki Yanagisawa ,  Yoshihito Hirano ,  Syuhei Yamamoto ,  Masao Imaki ,  Kiyohide Sakai ,  Yasuharu Koyata

IPC: H01S3/063

CPC classification number: H01S3/0632 ,  H01S3/0405 ,  H01S3/0612 ,  H01S3/08072 ,  H01S3/094053 ,  H01S3/09415 ,  H01S3/109

Abstract: Provided is a device capable of oscillating a plurality of oscillation modes within a laser medium for obtaining a fundamental wave output which is easy in output scaling and high in luminance, thereby enabling a second harmonic conversion which is high in efficiency. The device includes: a laser medium (5) that is planar, has a waveguide structure in a thickness direction of a cross-section that is perpendicular to an optical axis (6), and has a cyclic lens effect in a direction perpendicular to the optical axis (6) and the thickness direction; a clad (4) that is bonded onto one surface of the laser medium (5); and heat sink (3) that is bonded onto one surface side of the laser medium (5) through the clad (4), and in the device, a laser oscillation includes a laser oscillation that oscillates in a waveguide mode of the laser medium (5), and a laser oscillation that oscillates in a plurality of resonator modes that are generated by a cyclic lens effect of the laser medium (5).

Abstract translation: 提供了一种能够在激光介质内振荡多个振荡模式的装置，用于获得输出缩放容易且亮度高的基波输出，从而实现效率高的二次谐波转换。 该装置包括：平面的激光介质（5），在与光轴（6）垂直的横截面的厚度方向上具有波导结构，并且在垂直于光轴的方向上具有循环透镜效应 光轴（6）和厚度方向; 在激光介质（5）的一个表面上结合的包层（4）; 以及通过包层（4）结合到激光介质（5）的一个表面侧的散热器（3），并且在该器件中，激光振荡包括以激光介质的波导模式振荡的激光振荡（ 以及以由激光介质（5）的循环透镜效应产生的多个谐振器模式振荡的激光振荡。

公开(公告)号：US07361922B2

公开(公告)日：2008-04-22

申请号：US11500902

申请日：2006-08-09

Applicant: Shunpei Kameyama ,  Yoshihito Hirano

Inventor： Shunpei Kameyama ,  Yoshihito Hirano

IPC: G01N15/06

CPC classification number: G01S7/491 ,  G01N21/3504 ,  G01N2021/4709 ,  G01S7/4802 ,  G01S17/32 ,  G01S17/88 ,  G01S17/89

Abstract: A differential absorption lidar includes: a light signal generation unit for generating first, second CW light signals with first, second wavelengths having different absorption coefficients with respect to a target, a light intensity modulation unit for subjecting the first, second CW light signal to intensity modulation with a first, second CW modulation signal having a first, second frequency in a baseband, a radiation unit for multiplexing the first, second CW light signals with the intensity modulated, forming the multiplexed light signals with two wavelengths in a predetermined beam size, and radiating the light signals, a reception unit for directly detecting scattered light from the target and converting the scattered light into an electrical signal, and a signal processing unit for extracting only the first, second frequency components from the electric signal, and detecting the concentration of the target from a difference in an amplitude of time wavelengths between two signals.

Abstract translation: 差分吸收激光雷达包括：光信号产生单元，用于产生具有相对于目标的不同吸收系数的第一，第二波长的第一CW光信号;光强度调制单元，用于使第一，第二CW光信号强度 具有在基带中具有第一，第二频率的第一，第二CW调制信号的调制，用于将第一，第二CW光信号与强度调制多路复用的辐射单元，以预定的光束尺寸的两个波长形成复用的光信号， 并且发射光信号;接收单元，用于直接检测来自目标的散射光并将散射光转换为电信号;以及信号处理单元，用于仅从电信号中提取第一，第二频率分量，并检测浓度 从两个信号之间的时间波长的幅度的差异来看 ls。

公开(公告)号：US20080031292A1

公开(公告)日：2008-02-07

申请号：US11631308

申请日：2004-09-13

Applicant: Jiro Suzuki ,  Yoshihito Hirano ,  Yutaka Ezaki ,  Yasushi Horiuchi

Inventor： Jiro Suzuki ,  Yoshihito Hirano ,  Yutaka Ezaki ,  Yasushi Horiuchi

IPC: H01S3/13 ,  G01B9/02 ,  G01J9/00 ,  G01M11/00

CPC classification number: H01S3/2383 ,  G01J9/0246 ,  H01S3/005

Abstract: Provided are a small-sized, low-cost, and easy-to-use laser optical path length difference detecting device, a laser optical path length difference detecting device, and a coherent optical coupling device. The laser optical path length difference detecting device detects an optical path length difference between propagation paths of a first laser beam (1) and a second laser beam (2), which are mutually coherent when the beams are propagated through two arbitrary optical paths of a plurality of laser beam optical paths. The laser optical path length difference detecting device is provided with an optical path length difference variable means (4) for changing the optical path length difference between the first laser beam (1) and the second laser beam (2), a wavefront inclination generating means (5) for inclining a wavefront of at least one of the first laser beam (1) and the second laser beam (2), and a two-dimensional detector (6) for detecting the interference light intensity distribution of the first laser beam (1) and the second laser beam (2) which have passed through the wavefront inclination generating means.

Abstract translation: 提供了一种小尺寸，低成本，易于使用的激光光路长度差检测装置，激光光路长度差检测装置和相干光耦合装置。 激光光路长度差检测装置检测当第一激光束（1）和第二激光束（2）的传播路径之间的光路长度差异，当光束通过两 多个激光束光路。 激光光路长度差检测装置设置有用于改变第一激光束（1）和第二激光束（2）之间的光程长度差的光路长度差可变装置（4），波前倾斜产生装置 （5），用于倾斜第一激光束（1）和第二激光束（2）中的至少一个的波前;以及二维检测器（6），用于检测第一激光束的干涉光强度分布 1）和通过波前倾斜产生装置的第二激光束（2）。

公开(公告)号：US20070236367A1

公开(公告)日：2007-10-11

申请号：US11392515

申请日：2006-03-30

Applicant: Naoki Matayoshi ,  Kimio Asaka ,  Yoshinori Okuno ,  Masahiro Hagio ,  Yoshihito Hirano ,  Shumpei Kameyama ,  Toshiyuki Ando ,  Hidetaka Kiyosue ,  Masashi Furuta ,  Tomoya Matsuda

Inventor： Naoki Matayoshi ,  Kimio Asaka ,  Yoshinori Okuno ,  Masahiro Hagio ,  Yoshihito Hirano ,  Shumpei Kameyama ,  Toshiyuki Ando ,  Hidetaka Kiyosue ,  Masashi Furuta ,  Tomoya Matsuda

IPC: G01C23/00

CPC classification number: G01P13/025 ,  G01P5/26 ,  G01S17/58 ,  G01S17/95 ,  Y02A90/19

Abstract: In the measurement system for an aircraft according to the present invention, the three-axis components of the airspeed of the aircraft, the three-axis components of the wind speed currently encountered by the aircraft, and the wind speed distribution ahead of the aircraft, are measured simultaneously, by providing a Doppler anemometer which measures the airflow speeds at a plurality of points separated by a prescribed distance in the beam irradiation direction, and an inertial data measurement device which measures the movement information and positional information of the aircraft. Furthermore, in the measurement system for an aircraft according to the present invention, the measurement accuracy of the device is improved by providing means for obtaining information the movement and positional information of the aircraft during measurement, from the inertial data measurement device, and for correcting the measurement values from the Doppler anemometer by means of the information.

Abstract translation: 在根据本发明的飞行器的测量系统中，飞行器空速的三轴分量，飞机当前遇到的风速的三轴分量以及飞机前方的风速分布， 通过提供测量在光束照射方向上分开了规定距离的多个点处的气流速度的多普勒风速计和测量飞行器的移动信息和位置信息的惯性数据测量装置同时测量。 此外，在本发明的飞机的测量系统中，通过提供用于从惯性数据测量装置获取信息，测量中的飞行器的移动和位置信息以及用于校正的装置，来提高装置的测量精度 来自多普勒风速计的测量值通过信息。

公开(公告)号：US07239654B2

公开(公告)日：2007-07-03

申请号：US10250454

申请日：2002-10-31

Applicant: Masao Imaki ,  Syuhei Yamamoto ,  Youhei Mikami ,  Yoshihito Hirano ,  Makoto Satou ,  Kenji Masuda ,  Yasunori Nishimura ,  Yuji Masuyama

Inventor： Masao Imaki ,  Syuhei Yamamoto ,  Youhei Mikami ,  Yoshihito Hirano ,  Makoto Satou ,  Kenji Masuda ,  Yasunori Nishimura ,  Yuji Masuyama

IPC: H01S3/10

CPC classification number: H01S5/0687 ,  G01J9/00 ,  G02B1/02 ,  G02B5/3083 ,  G02B27/288 ,  H01S5/0612 ,  H01S5/0683

Abstract: On a plate of birefringent crystal made of an LiNbO3 crystal or an LiTaO3 crystal, a conductive substance is adhered to the whole periphery of side surfaces of the plate that intersect an incident surface of a laser beam, thereby to form a wave plate. A polarizer is provided at the latter stage of the wave plate. A wavelength is monitored based on an output from the polarizer. With this arrangement, based on the use of the LiNbO3 crystal or the LiTaO3 crystal that can be manufactured by a large quantity at low cost, it is possible to obtain polarization characteristics and wavelength discrimination characteristics that are stable against environmental changes such as temperature and external stress, by suppressing the pyroelectric effect and the piezoelectric effect of these materials.

Abstract translation: 在由LiNbO 3·结晶或LiTaO 3·结晶制成的双折射晶体平板上，导电物质附着在板的侧表面的整个周边， 激光束的入射面，从而形成波片。 在波片的后段提供偏振器。 基于偏振器的输出监视波长。 利用这种布置，基于可以以低成本大量制造的LiNbO 3/3结晶或LiTaO 3·结晶的用途，可以获得极化 通过抑制这些材料的热电效应和压电效应，对温度和外部应力等环境变化稳定的特性和波长辨别特性。