公开(公告)号：US20140268310A1

公开(公告)日：2014-09-18

申请号：US14218738

申请日：2014-03-18

Applicant: nLIGHT Photonics Corporation

Inventor： Changgeng Ye ,  Joona Koponen ,  Thomas S. Sosnowski

IPC: G02B6/02 ,  H01S3/067 ,  G02B6/036

CPC classification number: G02B6/02 ,  G02B6/036 ,  H01S3/06729 ,  H01S3/06733 ,  H01S3/06754 ,  H01S3/094007 ,  H01S3/09415 ,  H01S3/1618 ,  H01S3/302

Abstract: Optical fibers are provided for modal discrimination which include a central core and a cladding disposed about the central core. The central core has a non-circular and non-elliptical cross-section, and it is rotated about a central axis of the optical fiber along the length of the optical fiber at a selected pitch resulting in the capability of a fundamental mode beam output for large core sizes. An optical system includes a seed optical source configured to provide a seed beam and an optical amplifier configured to receive and amplify the seed beam. The optical amplifier also includes an active optical fiber having a large mode area non-circular and non-elliptical core rotated about a central axis of said active optical fiber to provide modal discrimination and fundamental mode output.

Abstract translation: 提供用于模式鉴别的光纤，其包括围绕中心芯设置的中心芯和包层。 中心芯具有非圆形和非椭圆形横截面，并且以选定的间距沿着光纤的长度围绕光纤的中心轴线旋转，导致基本模式光束输出的能力 大核心尺寸。 光学系统包括配置成提供种子光束的种子光源和被配置为接收和放大种子束的光学放大器。 光放大器还包括有源光纤，其具有围绕所述有源光纤的中心轴旋转的大模式区非圆形和非椭圆形芯，以提供模态鉴别和基本模式输出。

公开(公告)号：US08834039B1

公开(公告)日：2014-09-16

申请号：US13293500

申请日：2011-11-10

Applicant: Kylan Hoener ,  Aaron Brown ,  Walter R. Sanders ,  Richard Knight

Inventor： Kylan Hoener ,  Aaron Brown ,  Walter R. Sanders ,  Richard Knight

IPC: G02B6/36

CPC classification number: G02B6/3861

Abstract: An adhesive void mitigating fiber ferrule optical connector includes a housing for an optical fiber, the housing including opposite front and rear openings and an elongate bore providing an interior surface and extending between the opposite front and rear openings for insertably receiving the optical fiber from the rear opening through the front opening, the housing also including a front adhesive fill-port in communication with the elongate bore nearer the front opening for providing adhesive substantially void-free in the elongate bore and for surroundably securing the optical fiber extending therein to the interior surface.

Abstract translation: 粘合剂空隙减轻光纤套圈光学连接器包括用于光纤的壳体，壳体包括相对的前后开口和提供内表面并在相对的前后开口之间延伸的细长孔，用于从后方插入地接收光纤 通过前开口打开，壳体还包括与更靠近前开口的细长孔连通的前粘合剂填充口，用于在细长孔中提供基本上无空隙的粘合剂，并且用于将其中延伸的光纤围绕固定到内表面 。

公开(公告)号：US08670111B1

公开(公告)日：2014-03-11

申请号：US13485191

申请日：2012-05-31

Applicant: Aaron Brown ,  Cary S. Kiest ,  Mitchell R. Reynolds ,  Raymond Sohn

Inventor： Aaron Brown ,  Cary S. Kiest ,  Mitchell R. Reynolds ,  Raymond Sohn

IPC: G01N21/00

CPC classification number: G01M11/30 ,  G01K1/026 ,  G01K5/72

Abstract: A fiber monitoring system for detecting the occurrence of a thermal event, especially of a traumatic nature, in optical fibers while transmitting laser beams includes one or more fiber monitoring apparatuses each having a thermal sensing array supported by a holder board of a laminated dielectric material having a row of clips for retaining optical fibers in alignment with thermal sensor devices of the thermal sensing arrays. The thermal sensing arrays also have electrical circuitry elements for electrically interconnecting the thermal sensing devices in series and enabling electrically connecting the thermal sensing arrays with other circuitry to form a thermal interlock circuit for a laser system.

Abstract translation: 用于在传输激光束的同时检测光纤中的热事件特别是创伤性质的发生的光纤监视系统包括一个或多个光纤监视装置，每个光纤监视装置具有由层叠电介质材料的保持板支撑的热敏阵列， 一排用于保持光纤与热感测阵列的热传感器装置对准的夹子。 热感测阵列还具有用于将热感测装置串联电互连的电路元件，并且能够将热感测阵列与其它电路电连接以形成用于激光系统的热互锁电路。

公开(公告)号：US20130089115A1

公开(公告)日：2013-04-11

申请号：US13624537

申请日：2012-09-21

Applicant: Manoj Kanskar

Inventor： Manoj Kanskar

IPC: H01S5/34 ,  H01S5/026 ,  H01S5/187

CPC classification number: H01S5/1014 ,  H01S5/0287 ,  H01S5/1085 ,  H01S5/12 ,  H01S5/1203 ,  H01S5/22 ,  H01S2301/166

Abstract: A semiconductor laser that includes a single mode semiconductor laser coupled to a flared power amplifier is provided, the device including an internal or an external optical element that reinforces the curved wave front of the flared section of the device through phase-matching. By reinforcing the curved wave front via phase-matching, the device is less susceptible to thermal and gain-index coupled perturbations, even at high output powers, resulting in higher beam quality. Exemplary phase-matching optical elements include a grating integrated into the flared amplifier section; an intra-cavity, externally positioned binary optical element; and an intra-cavity, externally positioned cylindrically curved optical element.

Abstract translation: 提供了包括耦合到扩口功率放大器的单模半导体激光器的半导体激光器，该器件包括通过相位匹配来加强器件的扩口部分的弯曲波前的内部或外部光学元件。 通过相位匹配对弯曲波前进行加强，即使在高输出功率下，器件也不易受到热和增益折射率的耦合扰动的影响，从而导致更高的光束质量。 示例性相位匹配光学元件包括集成到扩张放大器部分中的光栅; 腔内，外部定位的二进制光学元件; 以及腔内，外部定位的圆柱形弯曲光学元件。

公开(公告)号：USD678788S1

公开(公告)日：2013-03-26

申请号：US29408905

申请日：2011-12-19

Applicant: Joe Kollmann ,  Jason Farmer ,  Jeremy Young ,  Anmol Nijjar ,  Scott Keeney

Designer： Joe Kollmann ,  Jason Farmer ,  Jeremy Young ,  Anmol Nijjar ,  Scott Keeney

公开(公告)号：US20080117944A1

公开(公告)日：2008-05-22

申请号：US11601555

申请日：2006-11-16

Applicant: David Clifford Dawson ,  David R. Balsley

Inventor： David Clifford Dawson ,  David R. Balsley

IPC: H01S3/00

CPC classification number: H01S5/06825 ,  H01S5/042

Abstract: Method and apparatus are provided that limit the current ramp rate applied to a laser bar or a single emitter laser diode to a predetermined value of 150 milliamps per millisecond or less. In addition to the laser diode and its power supply, the apparatus includes a power supply control circuit that performs the function of limiting the power supply ramp rate. The power supply control circuit can be separate from, or integrated within, the power supply.

Abstract translation: 提供了将施加到激光棒或单发射极激光二极管的电流斜坡速率限制在150毫安/毫秒或更短的预定值的方法和装置。 除了激光二极管及其电源之外，该装置还包括执行限制电源斜坡率功能的电源控制电路。 电源控制电路可以与电源分离或集成在电源中。

公开(公告)号：US20070217470A1

公开(公告)日：2007-09-20

申请号：US11436232

申请日：2006-05-18

Applicant: Mark DeFranza ,  David Dawson ,  Jason Farmer

Inventor： Mark DeFranza ,  David Dawson ,  Jason Farmer

IPC: H01S3/04 ,  H01S5/00

CPC classification number: H01S5/4025 ,  H01L2224/48091 ,  H01L2224/49111 ,  H01L2224/49175 ,  H01S3/061 ,  H01S3/09415 ,  H01S5/02264 ,  H01S5/02272 ,  H01S5/02469 ,  H01S5/4037 ,  H01S5/4087 ,  H01L2924/00012

Abstract: An end-pumped solid state laser utilizing a laser diode stack of laser diode subassemblies as the pump source is provided. The laser gain medium of the solid state laser is contained within a laser cavity defined by a pair of reflective elements. Each laser diode subassembly includes a submount to which one or more laser diodes are attached. The fast axis corresponding to each output beam of each laser diode is substantially perpendicular to the mounting surfaces of the submount. The laser diodes can be of one wavelength or multiple wavelengths. Preferably the submount has a high thermal conductivity and a CTE that is matched to that of the laser diode. On top of the submount, adjacent to the laser diode, is a spacer. The laser diode stack is formed by mechanically coupling the bottom surface of each submount to the spacer of an adjacent submount assembly. Preferably the laser diode stack is thermally coupled to a cooling block.

Abstract translation: 使用激光二极管组件的激光二极管叠层作为泵浦源的端泵浦固态激光器。 固体激光器的激光增益介质包含在由一对反射元件限定的激光腔内。 每个激光二极管子组件包括附接有一个或多个激光二极管的基座。 对应于每个激光二极管的每个输出光束的快轴基本上垂直于底座的安装表面。 激光二极管可以是一个波长或多个波长。 优选地，底座具有高的热导率和与激光二极管匹配的CTE。 在基座的顶部，与激光二极管相邻，是间隔物。 激光二极管堆叠通过将每个基座的底表面机械耦合到相邻的底座组件的间隔件而形成。 优选地，激光二极管堆叠热耦合到冷却块。

公开(公告)号：US20070116074A1

公开(公告)日：2007-05-24

申请号：US11378697

申请日：2006-03-17

Applicant: Derek Schulte ,  Yu Yan ,  Robert Martinsen ,  Aaron Hodges ,  Scott Karlsen

Inventor： Derek Schulte ,  Yu Yan ,  Robert Martinsen ,  Aaron Hodges ,  Scott Karlsen

IPC: H01S3/04 ,  H01S5/00

CPC classification number: H01S5/02252 ,  H01S5/02276 ,  H01S5/02288 ,  H01S5/02407 ,  H01S5/4043

Abstract: An extremely versatile diode laser assembly is provided, the assembly comprised of a plurality of diode laser subassemblies mounted to a stepped cooling block. The stepped cooling block allows the fabrication of a close packed and compact assembly in which individual diode laser subassembly output beams do not interfere with one another.

Abstract translation: 提供了一种极其通用的二极管激光器组件，该组件由安装到阶梯式冷却块的多个二极管激光器组件组成。 阶梯式冷却块允许制造紧密堆积和紧凑的组件，其中单独的二极管激光子组件输出光束彼此不会相互干扰。

公开(公告)号：US20070086501A1

公开(公告)日：2007-04-19

申请号：US11252778

申请日：2005-10-18

Applicant: Scott Karlsen

Inventor： Scott Karlsen

IPC: H01S5/00

CPC classification number: H01S5/4025 ,  G02B6/4206 ,  G02B6/4249

Abstract: A single piece optic for coupling the output of a diode laser array into an optical fiber array is provided. The coupling optic has a planar back surface which, during use with a diode laser array, is positioned substantially parallel to the front face of the laser array. The coupling optic is fabricated from a single substrate and is comprised of a plurality of optical elements. Depending upon the technique used to fabricate the optical elements, the individual optical elements may be trapezoidally-shaped or rectangularly-shaped. The front surface of each optical element is tilted, thus preventing reflected laser radiation from resonating within the diode laser's emitters. Preferably the wedge angle for the tilted front surface is greater than 2 mrad, thus accomplishing the goal of limiting feedback into the emitters, and less than 4 mrad, thus reducing beam steering. Additionally each optical element is shaped to reduce the divergence of the emitters in the fast axis, thus allowing the output from each emitter to be effectively coupled into the corresponding optical fiber.

Abstract translation: 提供了用于将二极管激光器阵列的输出耦合到光纤阵列中的单片光学器件。 耦合光学器件具有平坦的后表面，其在与二极管激光器阵列的使用期间基本上平行于激光器阵列的前表面定位。 耦合光学器件由单个衬底制造并且由多个光学元件组成。 根据用于制造光学元件的技术，各个光学元件可以是梯形的或矩形的。 每个光学元件的前表面倾斜，从而防止反射的激光辐射在二极管激光器的发射器内谐振。 优选地，倾斜前表面的楔角大于2mrad，从而实现将反馈限制到发射器中的目标，并且小于4mrad，从而减小波束转向。 此外，每个光学元件被成形为减小发射器在快轴上的发散度，从而允许来自每个发射器的输出被有效地耦合到相应的光纤中。

公开(公告)号：US20060045144A1

公开(公告)日：2006-03-02

申请号：US10932719

申请日：2004-09-01

Applicant: Scott Karlsen ,  Trevor Crum

Inventor： Scott Karlsen ,  Trevor Crum

IPC: H01S3/10

CPC classification number: G02B19/0057 ,  G02B19/0014 ,  G02B27/0938 ,  G02B27/0961 ,  H01S5/005 ,  H01S5/4031

Abstract: A means of achieving a spatially uniform output beam from a laser diode array with minimal design complexity is provided. The means is comprised of one or more optical elements located adjacent to the output of the diode array, the optical element(s) reducing the divergence of the output of the individual emitters of the diode array in at least one axis to within an acceptable range, preferably within the range of 0.1 to 10 degrees. The means is further comprised of a diffusing element, the output of the emitters passing through the optical element(s) prior to passing through the diffusing element. The diffusing element, preferably either a holographic diffuser or an engineered diffuser™ which provides control over the light diffusion angles, smoothes out the ripples formed by the overlapping output beams of the emitters in order to achieve the desired spatially uniform beam.

Abstract translation: 提供了一种以最小设计复杂度实现来自激光二极管阵列的空间均匀输出光束的方法。 该装置由邻近二极管阵列输出的一个或多个光学元件组成，光学元件将二极管阵列的各个发射极的输出在至少一个轴上减小到可接受的范围内 ，优选在0.1〜10度的范围内。 该装置还包括漫射元件，在通过漫射元件之前，发射器的输出通过光学元件。 扩散元件，优选全息漫射器或提供对光漫射角度的控制的工程扩散器（TM）平滑由发射器的重叠输出光束形成的波纹，以便实现期望的空间均匀光束。