公开(公告)号：KR100815483B1

公开(公告)日：2008-03-20

申请号：KR1020070044839

申请日：2007-05-09

Applicant: 한국전기연구원

Inventor： 김광훈 ,  이대식 ,  야쉰블라디미르 ,  강욱 ,  임근희

IPC: H01S3/0941

CPC classification number: H01S3/09415 ,  H01S3/005 ,  H01S3/1618 ,  H01S3/163

Abstract: A diode pumped laser apparatus using an anisotropic laser crystal is provided to reconstitute an intensity distribution in a horizontal axis direction inside of the laser crystal when a pumping light source having an asymmetric diffraction characteristic is used, thereby having a high efficiency. In a diode pumped laser apparatus, a pump emitting source(14) generates a pump beam having the luminance and an asymmetric cross section whose measurement is small in a first direction(a fast direction) and is large in a second direction(a slow direction) perpendicular to the first direction. An aspheric lens(15) makes the pump beam parallel in the first direction. A polarization rotator(21) rotates the polarization of the pump beam with 90 degrees. A second cylinder type lens(17) makes the pump beam passing through the polarization rotator parallel in the second direction. A focusing lens(18) focuses the pump beam on an anisotropic laser crystal(11) having a first axis and a second axis which are perpendicular and have a different absorption degree according to the polarization of the pump beam. The laser crystal is pumped by using the pump beam.

Abstract translation: 提供了使用各向异性激光晶体的二极管泵浦激光装置，以在使用具有不对称衍射特性的泵浦光源时，在激光晶体内侧的水平轴方向上的强度分布重构，从而具有高效率。 在二极管泵浦激光装置中，泵浦发光源（14）产生具有亮度和非对称截面的泵浦光束，其在第一方向（快速方向）上的测量较小，并且在第二方向（慢方向） ）垂直于第一方向。 非球面透镜（15）使得泵浦光束在第一方向上平行。 偏振旋转器（21）将泵浦光束的偏振旋转90度。 第二圆筒型透镜（17）使得泵浦光束通过偏振旋转器在第二方向上平行。 聚焦透镜（18）将泵浦光束聚焦在具有垂直于第一轴和第二轴的各向异性激光晶体（11）上，并且具有与泵浦光束的偏振相应的吸收度。 激光晶体通过使用泵浦光束进行泵浦。