Beam shaping prior to harmonic generation for increased stability of laser beam shaping post harmonic generation with integrated automatic displacement and thermal beam drift compensation
    1.
    发明授权
    Beam shaping prior to harmonic generation for increased stability of laser beam shaping post harmonic generation with integrated automatic displacement and thermal beam drift compensation 失效
    谐波产生之前的光束成形,以提高激光束成形后谐波发生的稳定性,并具有集成的自动位移和热束偏移补偿

    公开(公告)号:US07408687B2

    公开(公告)日:2008-08-05

    申请号:US11259531

    申请日:2005-10-26

    申请人: Todd E. Lizotte

    发明人: Todd E. Lizotte

    IPC分类号: G02B5/32 G02B27/64

    摘要: A laser beam delivery system for transforming a laser energy profile into a desired laser beam output energy profile. The laser beam delivery system comprises a laser for generating a laser beam along a beam path, at least one extra-cavity harmonic generation element being located along the beam path for generating harmonic multiples of a beam input frequency, and an extra-cavity beam expansion element, located before the at least one harmonic generation element, for expanding and collimating the laser beam prior to the laser beam being multiplied by the at least one harmonic generation element. The beam expansion element may be a refractive lens.

    摘要翻译: 一种用于将激光能量分布变换为期望的激光束输出能量分布的激光束传送系统。 激光束传送系统包括用于沿光束路径产生激光束的激光器,沿着光束路径定位至少一个外腔谐波产生元件,用于产生光束输入频率的谐波倍数,以及腔外光束扩展 元件,位于所述至少一个谐波产生元件之前,用于在所述激光束被所述至少一个谐波产生元件乘以之前扩展和准直所述激光束。 光束扩张元件可以是折射透镜。

    Fluorescence based laser alignment and testing of complex beam delivery systems and lenses
    2.
    发明授权
    Fluorescence based laser alignment and testing of complex beam delivery systems and lenses 失效
    基于荧光的激光对准和复杂光束传输系统和透镜的测试

    公开(公告)号:US07307711B2

    公开(公告)日:2007-12-11

    申请号:US11259525

    申请日:2005-10-26

    申请人: Todd E. Lizotte

    发明人: Todd E. Lizotte

    IPC分类号: G01B1/00

    CPC分类号: G01B11/272 G02B7/003

    摘要: Aligning and testing alignment of optical elements in a laser beam delivery system using non-visible radiation. An alignment mirror replaces a beam redirection mirror and includes a fluorescing substrate and a dielectric coating on an incident face of the fluorescing substrate that reflects a major part of an incident laser beam along a next leg of the beam path and transmits a part of the beam into the fluorescing substrate, which is transmissive to visible radiation and fluoresces when irradiated by the beam to emit a visible light image from a back face of the alignment mirror. An alignment target on the back face indicates a preferred point of incidence of the beam on the alignment mirror for a desired alignment of the at least one laser beam. A lens may be tested and the properties of the lens determined by use of a fluorescing target plate.

    摘要翻译: 使用不可见辐射在激光束传送系统中调整和测试光学元件的对准。 对准镜替代光束重定向镜并且在荧光基底的入射面上包括荧光基底和电介质涂层,其沿着光束路径的下一个腿反射入射激光束的主要部分,并且透射束的一部分 进入荧光底物,其对可见光辐射是透射的,并且在被光束照射时发出荧光,以从对准反射镜的背面发射可见光图像。 背面上的对准目标表示用于所述至少一个激光束的期望对准的对准反射镜上的光束的优选入射点。 可以测试透镜并且通过使用荧光目标板确定透镜的性质。