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    • 2. 发明授权
    • High power laser imaging systems
    • 大功率激光成像系统
    • US09409255B1
    • 2016-08-09
    • US13540461
    • 2012-07-02
    • Robert J. MartinsenScott R. KarlsenScott A. Lerner
    • Robert J. MartinsenScott R. KarlsenScott A. Lerner
    • B23K26/06
    • B23K26/066
    • An imaging system includes a beam generating system configured to generate a light beam of 0.5 kW or greater with a predetermined intensity profile across at least one axis transverse to a propagation axis thereof and to direct the light beam along a beam path, a light modulator configured to receive the light beam and to modulate the light beam into a predetermined illumination pattern, and an optical relay configured to receive the portion of the light beam and reflectively project the beam to a target, wherein the illumination pattern is imaged at the target with substantially time-invariant spatial accuracies of 500 μm or less in a plane transverse to the propagation axis and 1000 μm or less parallel to the propagation axis.
    • 一种成像系统包括:束生成系统,被配置为产生0.5kW或更大的光束,其横穿其横向于其传播轴的至少一个轴具有预定的强度分布,并且沿光束路径引导光束;光调制器 以接收光束并将光束调制成预定的照明图案;以及光学继电器,被配置为接收光束的该部分并将光束反射投影到目标,其中照明图案基本上在靶上成像 时间不变的空间精度在横向于传播轴的平面中为500μm或更小,平行于传播轴为1000μm或更小。
    • 4. 发明授权
    • Diode laser array coupling optic and system
    • 二极管激光阵列耦合光学系统
    • US07444046B2
    • 2008-10-28
    • US11252778
    • 2005-10-18
    • Scott R. Karlsen
    • Scott R. Karlsen
    • G02B6/32G02B6/04H01S5/00
    • H01S5/4025G02B6/4206G02B6/4249
    • 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.
    • 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。