公开(公告)号：US20140268313A1

公开(公告)日：2014-09-18

申请号：US14158250

申请日：2014-01-17

Applicant: FUJIKURA LTD.

Inventor： Michihiro NAKAI

IPC: H01S3/094

CPC classification number: H01S3/094076 ,  B23K26/0622 ,  H01S3/06754 ,  H01S3/0941 ,  H01S3/1024 ,  H01S3/1618 ,  H01S3/2308 ,  H01S5/042 ,  H01S5/0428

Abstract: A high power pulsed light generation device includes: a master clock generator that generates a master signal; an optical oscillator that generates a pulsed light synchronized with the master clock signal; an optical amplifier that amplifies the pulsed light emitted from the optical oscillator to output a high power pulsed light; a pump semiconductor laser that generates a pulsed light for pumping the optical amplifier; a driving unit that drives the pump semiconductor laser by a pulsed driving current synchronized with the master clock signal; and a control unit which controls the driving unit and controls a gain of the optical amplifier for each pulse by changing a pulse width of the pulsed drive current from driving unit so as to change the pulse width of the pumping pulsed light.

Abstract translation: 高功率脉冲光发生装置包括：主时钟发生器，其产生主信号; 产生与主时钟信号同步的脉冲光的光学振荡器; 光放大器，其放大从所述光振荡器发射的脉冲光以输出高功率脉冲光; 泵浦半导体激光器，其产生用于泵浦光放大器的脉冲光; 驱动单元，其通过与所述主时钟信号同步的脉冲驱动电流来驱动所述泵浦半导体激光器; 以及控制单元，其通过改变来自驱动单元的脉冲驱动电流的脉冲宽度来控制每个脉冲的光放大器的增益，从而改变泵浦脉冲光的脉冲宽度。

公开(公告)号：US08837550B2

公开(公告)日：2014-09-16

申请号：US13787399

申请日：2013-03-06

Applicant: Ofer Shapira ,  Song-Liang Chua ,  Bo Zhen ,  Jeongwon Lee ,  Marin Soljacic

Inventor： Ofer Shapira ,  Song-Liang Chua ,  Bo Zhen ,  Jeongwon Lee ,  Marin Soljacic

IPC: H01S3/20 ,  H01S3/091

CPC classification number: H01S3/091 ,  H01S3/08 ,  H01S3/08031 ,  H01S3/092 ,  H01S3/0941 ,  H01S3/168 ,  H01S3/213 ,  H01S5/12 ,  H01S5/36

Abstract: An organic dye laser produces a continuous-wave (cw) output without any moving parts (e.g., without using flowing dye streams or spinning discs of solid-state dye media to prevent photobleaching) and with a pump beam that is stationary with respect to the organic dye medium. The laser's resonant cavity, organic dye medium, and pump beam are configured to excite a lasing transition over a time scale longer than the associated decay lifetimes in the organic dye medium without photobleaching the organic dye medium. Because the organic dye medium does not photobleach when operating in this manner, it may be pumped continuously so as to emit a cw output beam. In some examples, operation in this manner lowers the lasing threshold (e.g., to only a few Watts per square centimeter), thereby facilitating electrical pumping for cw operation.

Abstract translation: 有机染料激光器产生没有任何移动部件的连续波（cw）输出（例如，不使用固态染料介质的流动染料流或旋转盘以防止漂白），并且使用相对于 有机染料介质。 激光器的谐振腔，有机染料介质和泵浦光束被配置成比有机染料介质中相关联的衰减寿命更长时间地激发激光跃迁，而无需漂白有机染料介质。 因为有机染料介质以这种方式操作时不会漂白，所以可以连续地泵送以发射cw输出光束。 在一些示例中，以这种方式的操作降低了激光阈值（例如，每平方厘米仅为几瓦特），从而便于cw操作的电泵送。

公开(公告)号：US08831053B2

公开(公告)日：2014-09-09

申请号：US13187848

申请日：2011-07-21

Applicant: Rainer Flaig ,  Alexander Killi ,  Martin Liermann ,  Thomas Notheis

Inventor： Rainer Flaig ,  Alexander Killi ,  Martin Liermann ,  Thomas Notheis

IPC: H01S3/13 ,  H01S5/00 ,  H01S5/40 ,  H01S3/06 ,  G01R31/26 ,  H01S3/0941

CPC classification number: H01S5/0021 ,  G01R31/2635 ,  H01S3/0604 ,  H01S3/0625 ,  H01S3/0941 ,  H01S5/4012 ,  H01S5/4018

Abstract: A method for monitoring a laser system including a plurality of laser modules connected in series, there being connected in parallel to each laser module a bypass arrangement for bridging the corresponding laser module, includes determining a first laser power of the laser system with a plurality of laser modules operational; activating the bypass arrangement of at least one laser module so that at least one of the plurality of laser modules is bypassed; determining a second laser power of the laser system with the at least one of the plurality of laser modules bypassed; and monitoring the laser system based on a difference between the first and second laser power.

Abstract translation: 一种用于监测包括串联连接的多个激光模块的激光系统的方法，每个激光模块并联连接有用于桥接相应的激光模块的旁路装置，包括：确定激光系统的第一激光功率， 激光模块运行; 激活至少一个激光模块的旁路装置，使得多个激光模块中的至少一个被旁路; 确定所述多个激光模块中的所述至少一个旁路的所述激光系统的第二激光功率; 以及基于第一和第二激光功率之间的差异来监视激光系统。

公开(公告)号：US20140233598A1

公开(公告)日：2014-08-21

申请号：US14351621

申请日：2011-11-16

Applicant: Motoaki Tamaya ,  Akira Yokoyama

Inventor： Motoaki Tamaya ,  Akira Yokoyama

IPC: H01S3/02 ,  H01S3/04 ,  H01S3/0941

CPC classification number: H01S3/025 ,  H01S3/0405 ,  H01S3/0632 ,  H01S3/0941 ,  H01S3/09415 ,  H01S5/0224 ,  H01S5/02272 ,  H01S5/02438 ,  H01S5/02476 ,  H01S5/4031

Abstract: A semiconductor laser excitation solid-state laser comprises: a planar waveguide-type solid-state laser element which is disposed on a solid-state laser substrate; an LD array; and a sub-mount substrate on which joining layers of two different thicknesses are formed on the same plane; wherein the planar waveguide-type solid-state laser element is joined to the sub-mount substrate on the surface on the opposite side of a surface on which the solid-state laser substrate is mounted, via a joining layer of one of the thicknesses out of the joining layers of the two different thicknesses, and the LD array is joined to the sub-mount substrate on the surface on a light-emitting layer side, via another joining layer of the other thickness out of the joining layers of the two different thicknesses.

Abstract translation: 半导体激光激光固体激光器包括：平面波导型固态激光元件，其设置在固态激光基板上; LD阵列 以及在同一平面上形成有两个不同厚度的接合层的子安装基板; 其中平面波导型固体激光元件通过其中一个厚度的接合层与安装有固体激光器基板的表面的相反侧的表面上的子安装基板接合 的两个不同厚度的接合层，并且LD阵列通过两个不同厚度的接合层中的另一个厚度的另一接合层在发光层侧的表面上接合到子安装基板 厚度

公开(公告)号：US20140185016A1

公开(公告)日：2014-07-03

申请号：US14195910

申请日：2014-03-04

Applicant: Laser Light Engines, Inc.

Inventor： Ian Turner

IPC: G02F1/35 ,  G02B27/26

CPC classification number: G02F1/3532 ,  G02B27/1026 ,  G02B27/1046 ,  G02B27/1073 ,  G02B27/145 ,  G02B27/149 ,  G02B27/22 ,  G02B27/2264 ,  G02B27/26 ,  G02B27/286 ,  G02B27/48 ,  G02F1/37 ,  G02F1/39 ,  H01S3/005 ,  H01S3/0092 ,  H01S3/0606 ,  H01S3/0941 ,  H01S3/1611 ,  H01S3/23 ,  H01S3/2325 ,  H01S3/2383 ,  H01S3/2391 ,  H04N9/3105 ,  H04N9/3161 ,  H04N13/324 ,  H04N13/327 ,  H04N13/334 ,  H04N13/337 ,  H04N13/341 ,  H04N13/363 ,  Y10T29/49901

Abstract: A stereoscopic projection system and method of generating light that include two or three infrared lasers, two optical parametric oscillators, and six or seven second harmonic generators. Six colors of visible light are produced. Three bands of red, green, and blue form an image for the left eye of the viewer, while the other three bands of red, green, and blue form an image for the right eye of the viewer.

Abstract translation: 立体投影系统和产生包括两个或三个红外激光器的光的方法，两个光学参数振荡器以及六个或七个二次谐波发生器。 产生六种可见光。 红色，绿色和蓝色的三个波段形成用于观看者左眼的图像，而红色，绿色和蓝色的其他三个波段形成用于观看者右眼的图像。

公开(公告)号：US20140092929A1

公开(公告)日：2014-04-03

申请号：US14016151

申请日：2013-09-02

Applicant: WI-CHARGE LTD.

Inventor： ORTAL ALPERT ,  RUDIGER PASCHOTTA

IPC: H01S5/10

CPC classification number: H02J50/30 ,  H01S3/005 ,  H01S3/0604 ,  H01S3/0805 ,  H01S3/08059 ,  H01S3/08072 ,  H01S3/083 ,  H01S3/0941 ,  H01S3/1307 ,  H01S5/041 ,  H01S5/10 ,  H01S5/14 ,  H01S5/183 ,  H04B10/114 ,  H04B10/807 ,  H04B2001/0416

Abstract: An optical power beam transmission systems, with a directional light transmitter and receiver. The transmitter contains an amplifying laser medium, and this together with a retroreflector in the receiver, forms a laser resonator. When lasing sets in, the receiver can extract optical power through an output coupler and convert it to electrical power. The gain medium may be a disc having a thickness substantially smaller than its lateral dimensions. The laser resonator is operated as a stable resonator to ensure safe operation. This is achieved by use of an adaptive optical element, for reducing the diameter of the energy beam impinging on the gain medium, thereby increasing the overlap between the energy beam and the gain medium. As the transmitter-receiver distance is changed, such as by movement of the receiver, the adaptive optical element focal length changes to ensure that the cavity remains within its stability zone.

Abstract translation: 光功率光束传输系统，带有定向光发射器和接收器。 发射机包含放大激光介质，并与接收机中的后向反射器一起形成激光谐振器。 当激光投射时，接收器可以通过输出耦合器提取光功率并将其转换为电能。 增益介质可以是具有基本上小于其横向尺寸的厚度的盘。 激光谐振器作为稳定的谐振器运行，以确保安全运行。 这通过使用自适应光学元件来实现，用于减小入射到增益介质上的能量束的直径，从而增加能量束和增益介质之间的重叠。 随着发射器 - 接收器距离的改变，例如通过接收器的移动，自适应光学元件焦距变化，以确保空腔保持在其稳定区域内。

公开(公告)号：US20140079084A1

公开(公告)日：2014-03-20

申请号：US13622465

申请日：2012-09-19

Applicant: U.S.A. as represented by the Administrator of the Naational Aeronautics and Spec Administration

Inventor： Donald B. Coyle ,  Paul R. Stysley ,  Demetrios Poulios

IPC: H01S3/04

CPC classification number: H01S3/04 ,  H01S3/025 ,  H01S3/0405 ,  H01S3/0606 ,  H01S3/07 ,  H01S3/08004 ,  H01S3/08054 ,  H01S3/08072 ,  H01S3/08095 ,  H01S3/0941 ,  H01S3/115 ,  H01S3/1611 ,  H01S3/1643 ,  H01S3/1685

Abstract: A system, apparatus and method employing a laser with a split-head, V-assembly gain material configuration. Additionally, the present invention is directed to techniques to better dissipate or remove unwanted energies in laser operations. The present invention is also directed to techniques for better collimated laser beams, with single spatial mode quality (TEM00), with improved efficiency, in extreme environments, such as in outer space.

Abstract translation: 一种使用具有分割头，V组件增益材料配置的激光器的系统，设备和方法。 另外，本发明涉及在激光操作中更好地消散或去除不需要的能量的技术。 本发明还涉及在诸如外部空间的极端环境中具有单一空间模式质量（TEM00）的更好的准直激光束的技术，其具有改进的效率。

公开(公告)号：US20140065575A1

公开(公告)日：2014-03-06

申请号：US14011419

申请日：2013-08-27

Applicant: LASER ABRASIVE TECHNOLOGIES, LLC

Inventor： Gregory B. ALTSHULER ,  Andrei V. BELIKOV ,  Valery Y. KHRAMOV

IPC: A61C19/00 ,  A61B18/22

CPC classification number: A61C19/00 ,  A61B2018/207 ,  A61B2018/208 ,  A61C1/0046 ,  H01S3/0407 ,  H01S3/0602 ,  H01S3/094053 ,  H01S3/0941 ,  H01S3/1608 ,  H01S3/161 ,  H01S3/1673 ,  H01S3/2383

Abstract: An apparatus for treatment of dental tissue has a first laser source optically connected to a first channel and the same first laser source optically connected to a second channel. The second laser source is optically connected to the first channel. That second laser source is designed to be pumped via the first channel by the diode laser to generate a power of radiation sufficient to cut hard dental tissue. The second channel is connected to a device for treatment of soft dental tissue and is designed to transmit radiation sufficient for treating soft dental tissue. The first laser source can be a diode laser designed to emit radiation of a wavelength selected from a range of 700 nm to 2700 nm. The second laser source can be a solid-state or fiber laser designed to emit a wavelength from a range of 2700 nm to 3000 nm.

Abstract translation: 用于治疗牙科组织的装置具有光学连接到第一通道的第一激光源和与第二通道光学连接的相同的第一激光源。 第二激光源与第一通道光学连接。 该第二激光源设计成通过二极管激光器经由第一通道泵浦，以产生足以切割硬牙组织的辐射功率。 第二通道连接到用于治疗软牙组织的装置，并被设计成传递足以治疗软牙组织的辐射。 第一激光源可以是设计成发射从700nm到2700nm范围内的波长的辐射的二极管激光器。 第二激光源可以是设计成从2700nm到3000nm的范围发射波长的固态或光纤激光器。

公开(公告)号：US08638831B2

公开(公告)日：2014-01-28

申请号：US13760222

申请日：2013-02-06

Applicant: Coherent, Inc.

Inventor： David Schleuning ,  Mark M. Gitin ,  R. Russel Austin

IPC: H01S3/04 ,  H01S5/00

CPC classification number: H01S5/041 ,  H01S3/0941 ,  H01S5/0428 ,  H01S5/06804 ,  H01S5/06825 ,  H01S5/4018 ,  H01S5/4043

Abstract: A diode-laser bar stack includes a plurality of diode-laser bars having different temperature dependent peak-emission wavelengths. The stack is arranged such that the bars can be separately powered. This allows one or more of the bars to be “on” while others are “off”. A switching arrangement is described for selectively turning bars on or off, responsive to a signal representative of the temperature of the diode-laser bar stack, for providing a desired total emission spectrum.

Abstract translation: 二极管激光棒堆叠包括具有不同温度依赖性峰值发射波长的多个二极管激光棒。 堆叠被布置成使得条可以单独供电。 这允许一个或多个酒吧“开”，而另一个则是“关闭”。 描述了一种切换装置，用于响应于代表二极管 - 激光棒堆叠的温度的信号，选择性地打开或关闭杆，以提供期望的总发射光谱。

公开(公告)号：US08599890B2

公开(公告)日：2013-12-03

申请号：US12054811

申请日：2008-03-25

Applicant: Yunlong Sun ,  Feng Chang

Inventor： Yunlong Sun ,  Feng Chang

IPC: H01S3/13

CPC classification number: H01S3/0941 ,  H01S3/042 ,  H01S3/094076 ,  H01S3/10046 ,  H01S3/10069 ,  H01S3/1024 ,  H01S3/1068 ,  H01S3/117 ,  H01S3/1306

Abstract: Systems and methods provide laser pulse equalization at different pulse repetition frequencies (PRFs). After initially pumping a lasing medium from a first pumping level to a peak pumping level, a controller may cause a pump source to continue pumping the lasing medium according to a pulse equalization pumping curve. The equalization pumping curve may be determined based on testing laser pulse parameters at different PRFs to achieve an optimal equalization result of the pulse parameters. The optimization metric used to evaluate various equalization pumping curves may include a consistency of the pulse energy level, peak power level, and/or pulse width of the laser under different PRFs. The equalization pumping curve may be a descending curve from the peak pumping level to the first pumping level. The equalization pumping curve may be a linearly declining curve, a substantially exponentially declining curve, a parametrically declining curve, or any other curve type.

Abstract translation: 系统和方法提供不同脉冲重复频率（PRF）的激光脉冲均衡。 在初始将激光介质从第一泵浦电平泵送到峰值泵浦电平之后，控制器可以使泵浦源根据脉冲均衡泵送曲线继续泵浦激光介质。 可以基于在不同PRF下测试激光脉冲参数来确定均衡泵送曲线，以实现脉冲参数的最佳均衡结果。 用于评估各种均衡泵送曲线的优化度量可以包括不同PRF下的激光器的脉冲能级，峰值功率电平和/或脉冲宽度的一致性。 均衡泵送曲线可以是从峰值泵送电平到第一泵浦电平的下降曲线。 均衡泵送曲线可以是线性下降曲线，基本上呈指数下降曲线，参数下降曲线或任何其它曲线类型。