公开(公告)号：US20180261967A1

公开(公告)日：2018-09-13

申请号：US15233928

申请日：2016-08-10

Applicant: Raytheon Company

Inventor： David M. Filgas ,  Stephen H. McGanty

IPC: H01S3/04 ,  H01S3/23 ,  H01S3/0941 ,  H01S3/063

CPC classification number: H01S3/0407 ,  G02B6/00 ,  G02B6/4204 ,  G02B6/4214 ,  G02B6/4296 ,  G02B27/0927 ,  G02B27/0994 ,  H01S3/0071 ,  H01S3/025 ,  H01S3/0401 ,  H01S3/042 ,  H01S3/0632 ,  H01S3/094038 ,  H01S3/094057 ,  H01S3/09415 ,  H01S3/1301 ,  H01S3/1305 ,  H01S3/1307 ,  H01S3/1312 ,  H01S3/2308

Abstract: A system includes a laser system having a master oscillator and a planar waveguide (PWG) amplifier having one or more laser diode pump arrays, a pumphead, input optics, and output optics. The system also includes an optical bench and cooling manifold coupled to the pumphead. The optical bench and cooling manifold is configured to provide coolant to the one or more laser diode pump arrays and the pumphead through the optical bench and cooling manifold. The optical bench and cooling manifold is also configured to partially deform during operation of the laser system. A housing of the pumphead is coupled to the input and output optics to maintain optical alignment of the pumphead with the input and output optics.

公开(公告)号：US09899790B2

公开(公告)日：2018-02-20

申请号：US15240002

申请日：2016-08-18

Applicant: FANUC CORPORATION

Inventor： Atsushi Mori

IPC: H01S3/04 ,  H01S3/102

CPC classification number: H01S3/0407 ,  H01S3/0401 ,  H01S3/1028

Abstract: A laser apparatus able to prevent the formation of condensation at the time of maintenance work. The laser apparatus includes a housing having an openable sealed structure, an optical system set inside the housing, a temperature regulation mechanism maintaining the optical system at a predetermined temperature, and a preparatory step controller controlling a preparatory step performed before opening the housing. The temperature regulation mechanism is configured to maintain the optical system at a first temperature during operation of the laser apparatus and to maintain the optical system at a second temperature of the first temperature or more when the preparatory step is started.

公开(公告)号：US09787050B2

公开(公告)日：2017-10-10

申请号：US15035605

申请日：2014-12-04

Applicant: South China University of Technology

Inventor： Shanhui Xu ,  Changsheng Yang ,  Zhongmin Yang ,  Zhouming Feng ,  Qinyuan Zhang ,  Zhonghong Jiang

IPC: H01S3/137 ,  H01S3/1055 ,  H01S3/139 ,  H01S3/106 ,  H01S3/094 ,  H01S3/102 ,  H01S3/067 ,  H01S3/08 ,  H01S3/16 ,  H01S3/17 ,  H01S3/00 ,  H01S3/04

CPC classification number: H01S3/1055 ,  H01S3/0064 ,  H01S3/0401 ,  H01S3/0405 ,  H01S3/06708 ,  H01S3/06712 ,  H01S3/06716 ,  H01S3/0675 ,  H01S3/08027 ,  H01S3/094042 ,  H01S3/1028 ,  H01S3/1062 ,  H01S3/137 ,  H01S3/139 ,  H01S3/1603 ,  H01S3/1618 ,  H01S3/175

Abstract: A tunable narrow-linewidth single-frequency linear-polarization laser device comprising a heat sink, a pumping source packaged on the heat sink, a first and second collimating lenses, a laser back cavity mirror, a thermal optical tunable filter, a rare-earth-ion heavily-doped multicomponent glass optical fiber, a super-structure polarization-maintaining fiber grating, a polarization-maintaining optical isolator, a polarization-maintaining optical fiber, and a thermoelectric refrigerating machine. The laser device uses a short and straight single-frequency resonant cavity structure, the heavily-doped and high-gain characteristics of the multicomponent glass optical fiber, a frequency selection role and wavelength tuning function of the thermal optical tunable filter and the superstructure polarization-maintaining fiber grating, and combines a precision temperature adjustment technology, and by means of real-time adjustment of distribution of reflection wavelengths and transmission wavelengths, the laser device changes spectrum peak overlapping positions, so as to implement stable output of wide-tuning-range, extra-narrow-linewidth, high-extinction-ratio and high-output-power continuously tunable single-frequency linear-polarization laser.

公开(公告)号：US09667025B2

公开(公告)日：2017-05-30

申请号：US15090118

申请日：2016-04-04

Applicant: BAE SYSTEMS INFORMATION AND ELECTRONIC SYSTEMS INTEGRATION INC.

Inventor： Benjamin R. Johnson

IPC: H01S3/06 ,  H01S3/067 ,  G02B6/00 ,  H01S3/105 ,  H01S3/04 ,  H01S3/094 ,  H01S3/0941

CPC classification number: H01S3/0675 ,  G02B6/00 ,  H01S3/0401 ,  H01S3/0405 ,  H01S3/06704 ,  H01S3/094003 ,  H01S3/09415 ,  H01S3/1053

Abstract: A fiber laser having a thermal controller operatively connected to one or more fiber Bragg gratings is provided. The thermal controller does not impart much or imparts very little mechanical stress or strain to the optical fiber in which the FBGs reside because such forces can alter the FBG performance. Rather, the thermal controller utilizes a thermally conductive semi-solid or non-Newtonian fluid to submerge/suspend a portion of the optical fiber in which FBG resides. Temperature control logic controls whether a thermoelectric heater and cooler should be directed to increase or decrease its temperature. The thermoelectric heater and cooler imparts or removes thermal energy from the FBG to efficiently control its performance without the application of mechanical stress. The fiber laser having a thermal controller generally is able to increase laser output power greater than two times the amount of output power of a similarly fabricated fiber laser free of the thermal controller(s).

公开(公告)号：US09596034B2

公开(公告)日：2017-03-14

申请号：US15172166

申请日：2016-06-03

Applicant: TRUMPF Laser GmbH

Inventor： Hagen Zimer ,  Alexander Killi ,  Christoph Tillkorn ,  Steffen Ried

IPC: H04B10/572 ,  H04J14/02 ,  H01S3/06 ,  H01S5/14 ,  H01S3/08 ,  H01S5/024 ,  H01S5/40 ,  G02B7/18 ,  H01S3/04

CPC classification number: H04B10/572 ,  G02B5/1861 ,  G02B7/1815 ,  H01S3/0401 ,  H01S3/0805 ,  H01S5/02438 ,  H01S5/142 ,  H01S5/143 ,  H01S5/4012 ,  H01S5/4062 ,  H01S5/4087 ,  H04J14/02

Abstract: The present disclosure describes systems and methods for beam wavelength stabilization and output beam combining in dense wavelength multiplexing (DWM) systems. Systems and methods are described for performing beam wavelength stabilization and output beam combining in DWM systems while achieving increased wall-plug efficiency and enhanced beam quality. Interferometric external resonator configurations can be used to greatly increase the brightness of DWM system output beams by stabilizing the wavelengths of the beams emitted by the emitters of the DWM laser source. The resonant cavities described by the present disclosure provide advantages over the prior art in the form of decreased cost, increased wall plug efficiency and increased output beam quality. Particular implementations of the disclosure achieve increased wall plug efficiency and increased output beam quality through a combination of innovative cavity designs and the utilization of reflection diffraction elements for beam combining.

Abstract translation: 本公开描述了在密集波长复用（DWM）系统中用于波束稳定和输出波束组合的系统和方法。 描述了用于在DWM系统中执行波束稳定和输出波束组合的系统和方法，同时实现增加的壁插塞效率和增强的波束质量。 通过稳定由DWM激光源的发射器​​发射的光束的波长，可以使用干涉外部谐振器配置来大大增加DWM系统输出光束的亮度。 本公开描述的谐振腔以降低的成本，增加的壁插塞效率和增加的输出光束质量的形式提供优于现有技术的优点。 本公开的具体实施方式通过创新的空腔设计和利用反射衍射元件用于光束组合来实现增加的壁插头效率和增加的输出光束质量。

公开(公告)号：US20170063017A1

公开(公告)日：2017-03-02

申请号：US15240002

申请日：2016-08-18

Applicant: FANUC CORPORATION

Inventor： Atsushi Mori

IPC: H01S3/04

CPC classification number: H01S3/0407 ,  H01S3/0401 ,  H01S3/1028

Abstract: A laser apparatus able to prevent the formation of condensation at the time of maintenance work. The laser apparatus includes a housing having an openable sealed structure, an optical system set inside the housing, a temperature regulation mechanism maintaining the optical system at a predetermined temperature, and a preparatory step controller controlling a preparatory step performed before opening the housing. The temperature regulation mechanism is configured to maintain the optical system at a first temperature during operation of the laser apparatus and to maintain the optical system at a second temperature of the first temperature or more when the preparatory step is started.

Abstract translation: 能够防止在维护工作时形成冷凝的激光装置。 激光装置包括具有可开封密封结构的壳体，设在壳体内部的光学系统，将光学系统保持在预定温度的温度调节机构，以及控制在打开壳体之前执行的预备步骤的预备步骤控制器。 温度调节机构被配置为在激光装置的操作期间将光学系统保持在第一温度，并且当准备步骤开始时将光学系统保持在第一温度或更高的第二温度。

公开(公告)号：US20160294150A1

公开(公告)日：2016-10-06

申请号：US15090118

申请日：2016-04-04

Applicant: BAE SYSTEMS INFORMATION AND ELECTRONIC SYSTEMS INTEGRATION INC.

Inventor： Benjamin R. Johnson

IPC: H01S3/102 ,  H01S3/094 ,  H01S3/0941 ,  H01S3/04 ,  H01S3/067

CPC classification number: H01S3/0675 ,  G02B6/00 ,  H01S3/0401 ,  H01S3/0405 ,  H01S3/06704 ,  H01S3/094003 ,  H01S3/09415 ,  H01S3/1053

Abstract: A fiber laser having a thermal controller operatively connected to one or more fiber Bragg gratings is provided. The thermal controller does not impart much or imparts very little mechanical stress or strain to the optical fiber in which the FBGs reside because such forces can alter the FBG performance. Rather, the thermal controller utilizes a thermally conductive semi-solid or non-Newtonian fluid to submerge/suspend a portion of the optical fiber in which FBG resides. Temperature control logic controls whether a thermoelectric heater and cooler should be directed to increase or decrease its temperature. The thermoelectric heater and cooler imparts or removes thermal energy from the FBG to efficiently control its performance without the application of mechanical stress. The fiber laser having a thermal controller generally is able to increase laser output power greater than two times the amount of output power of a similarly fabricated fiber laser free of the thermal controller(s).

Abstract translation: 提供了具有可操作地连接到一个或多个光纤布拉格光栅的热控制器的光纤激光器。 热控制器对FBG所在的光纤不施加太大的力或非常小的机械应力或应变，因为这样的力可以改变FBG性能。 相反，热控制器利用导热半固体或非牛顿流体来淹没/悬挂FBG所在的光纤的一部分。 温度控制逻辑控制是否应引导热电加热器和冷却器来增加或降低其温度。 热电加热器和冷却器从FBG施加或去除热能，以有效地控制其性能而不施加机械应力。 具有热控制器的光纤激光器通常能够增加大于不含热控制器的类似制造的光纤激光器的输出功率的两倍的激光输出功率。

公开(公告)号：US20160261085A1

公开(公告)日：2016-09-08

申请号：US15035605

申请日：2014-12-04

Applicant: South China University of Technology

Inventor： Shanhui Xu ,  Changsheng Yang ,  Zhongmin Yang ,  Zhouming Feng ,  Qinyuan Zhang ,  Zhonghong Jiang

IPC: H01S3/1055 ,  H01S3/16 ,  H01S3/067 ,  H01S3/102 ,  H01S3/04 ,  H01S3/094

CPC classification number: H01S3/1055 ,  H01S3/0064 ,  H01S3/0401 ,  H01S3/0405 ,  H01S3/06708 ,  H01S3/06712 ,  H01S3/06716 ,  H01S3/0675 ,  H01S3/08027 ,  H01S3/094042 ,  H01S3/1028 ,  H01S3/1062 ,  H01S3/137 ,  H01S3/139 ,  H01S3/1603 ,  H01S3/1618 ,  H01S3/175

Abstract: A tunable narrow-linewidth single-frequency linear-polarization laser device comprising a heat sink, a pumping source packaged on the heat sink, a first and second collimating lenses, a laser back cavity mirror, a thermal optical tunable filter, a rare-earth-ion heavily-doped multicomponent glass optical fiber, a super-structure polarization-maintaining fiber grating, a polarization-maintaining optical isolator, a polarization-maintaining optical fiber, and a thermoelectric refrigerating machine. The laser device uses a short and straight single-frequency resonant cavity structure, the heavily-doped and high-gain characteristics of the multicomponent glass optical fiber, a frequency selection role and wavelength tuning function of the thermal optical tunable filter and the superstructure polarization-maintaining fiber grating, and combines a precision temperature adjustment technology, and by means of real-time adjustment of distribution of reflection wavelengths and transmission wavelengths, the laser device changes spectrum peak overlapping positions, so as to implement stable output of wide-tuning-range, extra-narrow-linewidth, high-extinction-ratio and high-output-power continuously tunable single-frequency linear-polarization laser.

Abstract translation: 一种可调窄线宽单频线性偏振激光装置，包括散热器，封装在散热片上的泵浦源，第一和第二准直透镜，激光后腔镜，热光可调谐滤光器，稀土 超重掺杂多组分玻璃光纤，超结构偏振保持光纤光栅，偏振保持光隔离器，偏振保持光纤和热电制冷机。 激光器件采用短路和直线单频谐振腔结构，多组分玻璃光纤的重掺杂和高增益特性，热光可调谐滤波器的频率选择作用和波长调谐功能以及上部结构极化 - 维持光纤光栅，结合精密温度调节技术，通过实时调整反射波长和透射波长的分布，激光器件改变光谱峰值重叠位置，实现宽调谐范围的稳定输出 ，超窄线宽，高消光比和高输出功率连续可调谐单频线偏振激光器。

公开(公告)号：US20160254636A1

公开(公告)日：2016-09-01

申请号：US15154281

申请日：2016-05-13

Applicant: Boston Scientific Scimed, Inc.

Inventor： Rongwei Jason Xuan ,  Douglas L. Evans

IPC: H01S3/04 ,  H01S3/081 ,  H01S3/11 ,  H01S3/16 ,  H01S3/108 ,  H01S3/042 ,  H01S3/091

CPC classification number: H01S3/0407 ,  H01S3/025 ,  H01S3/0401 ,  H01S3/042 ,  H01S3/0815 ,  H01S3/091 ,  H01S3/108 ,  H01S3/109 ,  H01S3/11 ,  H01S3/1127 ,  H01S3/1611 ,  H01S3/1643 ,  H01S3/1666

Abstract: A laser system includes a laser element, a pump source configured to input light to the laser element, a first cooling circuit and a second cooling circuit. The first cooling circuit includes a first pump configured to drive a first flow of cooling liquid through a first fluid pathway, a first primary heat exchanger configured to cool the first flow of cooling liquid, and a laser element heat exchanger configured to remove heat from the laser element using the first flow of cooling liquid. The second cooling circuit includes a second pump configured to drive a flow of cooling liquid through a second fluid pathway, a second primary heat exchanger configured to cool the second flow of cooling liquid, and a pump source heat exchanger configured to remove heat from the pump source using the first and second flows of cooling liquid.

Abstract translation: 激光系统包括激光元件，被配置为向激光元件输入光的泵浦源，第一冷却回路和第二冷却回路。 第一冷却回路包括构造成驱动冷却液通过第一流体通路的第一流动的第一泵，构造成冷却第一冷却液流的第一主要热交换器，以及被配置成从第一流体通道 激光元件采用第一流冷却液。 第二冷却回路包括构造成驱动冷却液流通过第二流体通路的第二泵，构造成冷却第二冷却液流的第二主要热交换器，以及配置成从泵中除去热量的泵浦源热交换器 源使用第一和第二冷却液流。

公开(公告)号：US20150277073A1

公开(公告)日：2015-10-01

申请号：US14440378

申请日：2014-08-21

Applicant: BAE SYSTEMS INFORAMATION AND ELECTRONIC SYSTEMS INTEGRATION INC.

Inventor： Benjamin R. Johnson

IPC: G02B6/44

CPC classification number: G02B6/44 ,  H01S3/0401 ,  H01S3/0404 ,  H01S3/0407 ,  H01S3/042 ,  H01S3/06704 ,  H01S3/0675 ,  H01S3/094003 ,  H01S3/09415 ,  H01S5/02423 ,  H01S5/0243

Abstract: A system provides for a way for cooling an optical fiber. The system includes a coolant and a conduit. The conduit allows the coolant to flow through the conduit. At least part of the fiber passes through the conduit allowing the coolant to flow around the at least part of the fiber. In some configurations, the fiber runs parallel to the conduit. The system can include a pump diode that is part of an optical laser connected to an end of the fiber. The optical laser can further include a high reflector connected to the fiber and a partial reflector connected to the fiber to reflect some light back and forth between the high reflector and the partial reflector.

Abstract translation: 系统提供了一种冷却光纤的方法。 该系统包括冷却剂和导管。 导管允许冷却剂流过导管。 纤维的至少一部分通过导管，允许冷却剂围绕纤维的至少部分流动。 在一些配置中，纤维平行于管道延伸。 该系统可以包括泵浦二极管，其是连接到光纤端部的光学激光器的一部分。 光学激光器还可以包括连接到光纤的高反射器和连接到光纤的部分反射器，以在高反射器和部分反射器之间来回反射一些光。