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    Microchip - Yb fiber hybrid optical amplifier for micro-machining and marking
    71.
    发明申请
    Microchip - Yb fiber hybrid optical amplifier for micro-machining and marking 有权
    Microchip - Yb光纤混合光放大器用于微加工和标记

    公开(公告)号：US20070109629A1

    公开(公告)日：2007-05-17

    申请号：US11643760

    申请日：2006-12-22

    申请人： Almantas Galvanauskas ,  Donald Harter ,  Martin Fermann ,  Ferenc Raksi

    发明人： Almantas Galvanauskas ,  Donald Harter ,  Martin Fermann ,  Ferenc Raksi

    IPC分类号： H01S3/00

    CPC分类号： H01S3/0627 ,  G02B6/262 ,  G02F1/3525 ,  H01S3/0606 ,  H01S3/0615 ,  H01S3/06708 ,  H01S3/06754 ,  H01S3/094003 ,  H01S3/094007 ,  H01S3/094069 ,  H01S3/09415 ,  H01S3/115 ,  H01S3/1611 ,  H01S3/1618 ,  H01S3/1673 ,  H01S3/302

    摘要： The invention describes techniques for the control of the spatial as well as spectral beam quality of multi-mode fiber amplification of high peak power pulses as well as using such a configuration to replace the present diode-pumped, Neodynium based sources. Perfect spatial beam-quality can be ensured by exciting the fundamental mode in the multi-mode fibers with appropriate mode-matching optics and techniques. The loss of spatial beam-quality in the multi-mode fibers along the fiber length can be minimized by using multi-mode fibers with large cladding diameters. Near diffraction-limited coherent multi-mode amplifiers can be conveniently cladding pumped, allowing for the generation of high average power. Moreover, the polarization state in the multi-mode fiber amplifiers can be preserved by implementing multi-mode fibers with stress producing regions or elliptical fiber cores These lasers find application as a general replacement of Nd: based lasers, especially Nd:YAG lasers. Particularly utility is disclosed for applications in the marking, micro-machining and drilling areas.

    摘要翻译： 本发明描述了用于控制高峰值功率脉冲的多模光纤放大的空间以及光束质量的技术，以及使用这种配置来替代当前二极管泵浦的基于钕的源。 通过适当的模式匹配光学和技术，可以通过激发多模光纤中的基模来确保完美的空间光束质量。 通过使用具有大包层直径的多模光纤，能够使沿着光纤长度的多模光纤中的空间光束质量损失最小化。 近衍射极限相干多模放大器可以方便地进行包层泵浦，从而产生高平均功率。 此外，通过实施具有应力产生区域或椭圆形光纤核心的多模光纤，可以保持多模光纤放大器中的偏振状态。这些激光器可用作Nd基激光器，尤其是Nd：YAG激光器的一般替代。 公开了用于标记，微加工和钻孔领域的应用。

    Laser scanner
    72.
    发明申请
    Laser scanner 审中-公开
    激光扫描仪

    公开(公告)号：US20070106285A1

    公开(公告)日：2007-05-10

    申请号：US11272571

    申请日：2005-11-09

    申请人： Ferenc Raksi

    发明人： Ferenc Raksi

    IPC分类号： A61B18/18 ,  A61F9/008

    CPC分类号： A61F9/008 ,  A61F9/009 ,  A61F2009/00844 ,  A61F2009/00872 ,  A61F2009/00897 ,  G02B26/0875 ,  G02B26/101

    摘要： A laser scanner is disclosed. The laser scanner comprises a laser source, a first optical element, and a focusing element. The first optical element is adapted to move along the optical axis of light from the laser source. The focusing element receives laser light from the first optical element and is adapted to move orthogonally to the optical axis. Optionally, the focusing element may include multiple focusing lenses. A first focusing lens may be adapted to move along a first axis which is orthogonal to the optical axis. A second focusing lens may be adapted to move along a second axis which is orthogonal to the optical axis and to the first axis. The laser scanner may also include a second optical element which receives light from the focusing element and is adapted to effectively increase the focal length of the focusing element without increasing its f number.

    摘要翻译： 公开了一种激光扫描器。 激光扫描器包括激光源，第一光学元件和聚焦元件。 第一光学元件适于沿着来自激光源的光的光轴移动。 聚焦元件接收来自第一光学元件的激光，并且适于垂直于光轴移动。 可选地，聚焦元件可以包括多个聚焦透镜。 第一聚焦透镜可以适于沿着与光轴正交的第一轴线移动。 第二聚焦透镜可以适于沿着与光轴正交的第二轴线移动到第一轴线。 激光扫描器还可以包括第二光学元件，其接收来自聚焦元件的光，并且适于有效地增加聚焦元件的焦距而不增加其f数。