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    ASYMMETRIC PWG WITH ASYMMETRIC COOLING
    1.
    发明申请
    ASYMMETRIC PWG WITH ASYMMETRIC COOLING 审中-公开
    不对称油压不平衡冷却

    公开(公告)号：WO2016025765A1

    公开(公告)日：2016-02-18

    申请号：PCT/US2015/045143

    申请日：2015-08-13

    申请人： RAYTHEON COMPANY

    发明人： FILGAS, David, M.

    IPC分类号： H01S3/063 ,  H01S3/06 ,  H01S3/08 ,  H01S3/0941 ,  H01S3/042 ,  H01S3/16

    CPC分类号： G02B6/1228 ,  G02B6/12007 ,  G02B6/4296 ,  G02B6/4298 ,  G02B2006/12159 ,  H01S3/042 ,  H01S3/0617 ,  H01S3/0625 ,  H01S3/0632 ,  H01S3/0637 ,  H01S3/08072 ,  H01S3/09415 ,  H01S3/1643

    摘要： A planar waveguide (PWG) having a first end for coupling to a light pump and a second end opposite to the first end and including: a first cladding layer; a uniformly doped core layer having the first cladding layer on one side, wherein the core layer is tapered having a smaller thickness at the first end and a larger thickness at the second end; and a second cladding layer thinner than the first cladding layer, coated on another side of the core layer opposite to said one side of the core layer. The first cladding layer may also be tapered along the length of the PWG having a larger thickness at the first end and a smaller thickness at the second end with a taper angle substantially opposite that of the core layer to form the PWG with a substantially uniform overall thickness along the length.

    摘要翻译： 一种具有用于耦合到光泵的第一端和与第一端相对的第二端的平面波导（PWG），包括：第一包层; 在一侧具有第一包层的均匀掺杂的芯层，其中所述芯层在第一端处具有较小厚度的锥形并且在第二端具有较大的厚度; 以及比所述第一覆层更薄的第二覆层，涂覆在所述芯层的与所述芯层的所述一侧相对的另一侧。 第一包层也可以沿着PWG的长度在第一端处具有较大的厚度，并且在第二端具有较小的厚度，其锥度角与芯层基本上相反，以形成具有基本均匀的总体的PWG 沿着长度的厚度。

    SLAB LASER AND METHOD WITH IMPROVED AND DIRECTIONALLY HOMOGENIZED BEAM QUALITY
    2.
    发明申请
    SLAB LASER AND METHOD WITH IMPROVED AND DIRECTIONALLY HOMOGENIZED BEAM QUALITY 审中-公开
    具有改进的和方向均匀的光束质量的SLAB激光和方法

    公开(公告)号：WO2005101591A1

    公开(公告)日：2005-10-27

    申请号：PCT/US2004/038542

    申请日：2004-11-16

    申请人： RAYTHEON COMPANY

    发明人： REEDER, Robin, A. ,  FILGAS, David, M. ,  BYREN, Robert, W.

    IPC分类号： H01S3/08

    CPC分类号： H01S3/08059 ,  H01S3/005 ,  H01S3/0606 ,  H01S3/08072 ,  H01S3/08095 ,  H01S3/0813 ,  H01S3/0941 ,  H01S3/107 ,  H01S3/115 ,  H01S3/1618 ,  H01S3/1643

    摘要： A laser resonator for generating a laser beam having beam quality along two transverse axes that is determined by the mode discrimination characteristics of one axis. The resonator has a high aspect ratio slab (34) lasing medium with a first and a second end that emit a laser beam. An aperture stop (34) with a narrow transverse dimension and an orthogonal wide transverse dimension defines the laser beam profile. The slab itself may define the aperture stop. A first reflector (30) is aligned to reflect the laser beam emitted from one end of the slab (34) back into the slab, and thereby define a first end of a resonant cavity. An anamorphic telescope (38, 40, 42) is aligned to receive and reshape the laser beam profile to be substantially symmetrical about its transverse ayes. The beam profile of the reshaped laser beam is rotated 90° and reflected, by a second reflector (50), bA laser resonator for generating a laser beam having beam quality along two transverse axes that is determined by the mode discrimination characteristics of an one axis. The resonator has a high aspect ratio slab (34) lasing medium with a first and a second end that emit a laser beam. An aperture stop (34) with narrow transverse dimension and an orthogonal wide transverse dimension defines the laser beam profile. The slab itself may define the aperture stop. A first reflector (30) is aligned to reflect the laser beam emitted from one end of the slab (34) back into the slab, and thereby define a first end of a resonant cavity. An anamorphic telescope (38, 40, 42) is aligned to receive and reshape the laser beam profile to be substantially symmetrical about its transverse ayes. The beam profile of the reshaped laser beam is rotated 90° and reflected, by a second refector (50), back into the telescope, defining the second end of the resonator. The reflectors may be porno prisms, mirrors, or Benson prisms. A polarization out-coupler (44) is used in conjunction with an electro-optic Q-switche (32) to out-couple laser energy. The slab (34) may be solid state Yb:YAG.

    摘要翻译： 一种激光谐振器，用于产生沿着两个横轴的光束质量的激光束，该激光束由一个轴的模式识别特性决定。 谐振器具有高纵横比的板（34）激光介质，其具有发射激光束的第一和第二端。 具有窄横向尺寸和正交宽横向尺寸的孔径光阑（34）限定了激光束轮廓。 板本身可以限定孔径光阑。 对准第一反射器（30）以将从板坯（34）的一端发射的激光束反射回到板坯中，从而限定谐振腔的第一端。 对准变形望远镜（38,40,42）以接收和重塑激光束轮廓以使其基本上对称于其横向轴心。 重新设计的激光束的光束轮廓被旋转90°并被第二反射器（50）反射，bA激光谐振器用于产生沿着两个横轴的光束质量的激光束，该激光束由一个轴的模式辨别特性 。 谐振器具有高纵横比的板（34）激光介质，其具有发射激光束的第一和第二端。 具有窄横向尺寸和正交宽横向尺寸的孔径光阑（34）限定了激光束轮廓。 板本身可以限定孔径光阑。 对准第一反射器（30）以将从板坯（34）的一端发射的激光束反射回到板坯中，从而限定谐振腔的第一端。 对准变形望远镜（38,40,42）以接收和重塑激光束轮廓以使其基本上对称于其横向轴心。 重新配置的激光束的光束轮廓旋转90°，并由第二反射镜（50）反射回限定谐振器的第二端的望远镜。 反射镜可能是色情棱镜，镜子或Benson棱镜。 极化输出耦合器（44）与电光Q开关（32）结合使用以耦合激光能量。 板坯（34）可以是固态Yb：YAG。

    SYSTEM AND METHOD FOR COOLING A LASER GAIN MEDIUM USING AN ULTRA-THIN LIQUID THERMAL OPTICAL INTERFACE
    3.
    发明申请
    SYSTEM AND METHOD FOR COOLING A LASER GAIN MEDIUM USING AN ULTRA-THIN LIQUID THERMAL OPTICAL INTERFACE 审中-公开
    使用超薄液体热光学接口冷却激光增益介质的系统和方法

    公开(公告)号：WO2016093944A1

    公开(公告)日：2016-06-16

    申请号：PCT/US2015/055014

    申请日：2015-10-09

    申请人： RAYTHEON COMPANY

    发明人： FILGAS, David, M. ,  KOONTZ, Christopher, R.

    IPC分类号： H01S3/04

    CPC分类号： H01S3/042 ,  H01S3/0407 ,  H01S3/1643

    摘要： A heat sink (106, 106a, 106b) for cooling a laser gain medium (102) includes a coolant channel (112, 112a, 112b), an inlet pore (118, 118a, 118b), an outlet pore (120, 120a, 120b), and a thermal optical interface (TOI) channel (114, 114a, 114b). The coolant channel is configured to receive a coolant for removing heat from the heat sink. The TOI channel is coupled to the coolant channel by the inlet pore and the outlet pore. The TOI channel is configured to receive a portion of the coolant through the inlet pore. The received portion forms an ultra-thin liquid TOI. The TOI channel is further configured to return a portion of the TOI through the outlet pore to the coolant channel.

    摘要翻译： 用于冷却激光增益介质（102）的散热器（106,106a，106b）包括冷却剂通道（112,112a，112b），入口孔（118,118a，118b），出口孔（120,120a， 120b）和热光学接口（TOI）通道（114,114a，114b）。 冷却剂通道构造成接收用于从散热器移除热量的冷却剂。 TOI通道由入口孔和出口孔耦合到冷却剂通道。 TOI通道构造成通过入口孔接收一部分冷却剂。 接收的部分形成超薄液体TOI。 TOI通道还被配置成将TOI的一部分通过出口孔返回到冷却剂通道。

    SELF-SEEDING HIGH POWER LASER
    6.
    发明申请
    SELF-SEEDING HIGH POWER LASER 审中-公开
    自拍高功率激光

    公开(公告)号：WO2017062076A2

    公开(公告)日：2017-04-13

    申请号：PCT/US2016/038520

    申请日：2016-06-21

    申请人： RAYTHEON COMPANY

    发明人： FILGAS, David, M.

    CPC分类号： H01S3/10023 ,  H01S3/0632 ,  H01S3/06791 ,  H01S3/07 ,  H01S3/08013 ,  H01S3/0805 ,  H01S3/08072 ,  H01S3/083 ,  H01S3/1003 ,  H01S3/10053 ,  H01S3/10084 ,  H01S3/10092 ,  H01S3/105 ,  H01S3/1053 ,  H01S3/1065 ,  H01S3/1307 ,  H01S3/136

    摘要： A self-seeding high power laser includes a spatial filter; an optical relay for circulating a low power un-distorted optical beam, an adaptive optic optically coupled to the output of the optical relay; a high power amplifier optically coupled to an output of the adaptive optic phase control element, wherein adaptively modified phasefront injected by the adaptive optic cancels distortions produced by the high power amplifier; a beamsplitter optically coupled to the high power amplifier for splitting the high power un-distorted optical beam into a high power output beam as the output of the self-seeding high power laser, and a low power beam; a focusing lens; a detector for detecting a metric of the low power beam; and a controller for adaptively controlling the adaptive optic to maximize the power of the high power amplifier, based on the detected metric.

    摘要翻译： 自播式大功率激光器包括空间滤波器; 用于循环低功率未失真光束的光学继电器，光学耦合到光学继电器的输出的自适应光学器件; 光耦合到所述自适应光学相位控制元件的输出的高功率放大器，其中由所述自适应光学器件注入的自适应地修改的前沿消除由所述高功率放大器产生的失真; 光耦合到高功率放大器的分束器，用于将高功率未失真光束分解为高功率输出光束，作为自种子大功率激光器的输出和低功率光束; 聚焦透镜; 用于检测低功率光束的度量的检测器; 以及控制器，用于根据检测到的度量自适应地控制自适应光学器件以使大功率放大器的功率最大化。

    LINEAR ADAPTIVE OPTICS SYSTEM IN LOW POWER BEAM PATH AND METHOD
    7.
    发明申请
    LINEAR ADAPTIVE OPTICS SYSTEM IN LOW POWER BEAM PATH AND METHOD 审中-公开
    线性自适应光学系统在低功率光束路径和方法中的应用

    公开(公告)号：WO2008133648A2

    公开(公告)日：2008-11-06

    申请号：PCT/US2007/023178

    申请日：2007-11-02

    申请人： RAYTHEON COMPANY

    发明人： BYREN, Robert, W. ,  KING, William, B. ,  FILGAS, David, M.

    IPC分类号： G02B27/00 ,  G02B26/06

    CPC分类号： G02B26/06 ,  F41H13/005 ,  G02B27/0037 ,  H01S3/0014 ,  H01S3/005 ,  H01S3/1307 ,  H01S3/2308 ,  H01S3/2333

    摘要： A system and method for providing a wavefront corrected high-energy beam of electromagnetic energy. In the illustrative embodiment, the system includes a source of a first beam of electromagnetic energy; an amplifier for amplifying said beam to provide a second beam; a sensor for sensing aberration in said second beam and providing an error signal in response thereto; a processor for processing said error signal and providing a correction signal in response thereto; and a spatial light modulator responsive to said correction signal for adjusting said beam to facilitate a correction of said aberration thereof. In more specific embodiments, the source is a laser and the sensor is a laser wavefront sensor. A mirror is disposed between said modulator and said sensor for sampling said beam. The mirror has an optical thin- film dielectric coating on at least one optical surface thereof. The coating is effective to sample said beam and transmit a low power sample thereof to said means for sensing aberration. The processor is an adaptive optics processor. The spatial light modulator may be a micro electro-mechanical system deformable mirror or an optical phased array. In the illustrative embodiment, the source is a master oscillator and the amplifier is a power amplifier beamline. An outcoupler is disposed between the oscillator and the amplifier.

    摘要翻译： 用于提供波前校正的高能电磁能束的系统和方法。 在说明性实施例中，该系统包括第一电磁能束源; 放大器，用于放大所述光束以提供第二光束; 传感器，用于感测所述第二光束中的像差并响应于此提供误差信号; 处理器，用于处理所述误差信号并响应于此提供校正信号; 以及响应于所述校正信号的空间光调制器，用于调整所述光束以促进对其所述像差的校正。 在更具体的实施例中，源是激光器并且传感器是激光波前传感器。 在所述调制器和所述传感器之间设置镜子，用于对所述光束进行取样。 该镜子在其至少一个光学表面上具有光学薄膜电介质涂层。 该涂层有效地对所述光束进行采样并将其低功率样本发送到所述用于感测像差的装置。 该处理器是一个自适应光学处理器。 空间光调制器可以是微机电系统可变形镜或光学相控阵。 在说明性实施例中，源是主振荡器，放大器是功率放大器射束线。 耦合器放置在振荡器和放大器之间。