公开(公告)号：US06442187B1

公开(公告)日：2002-08-27

申请号：US09674515

申请日：2001-02-16

Applicant: Alexander Ivanovich Dutov ,  Alexey Alexeevich Kuleshov ,  Nikolay Alexeevich Novoselov ,  Alexander Alexandrovich Sokolov

Inventor： Alexander Ivanovich Dutov ,  Alexey Alexeevich Kuleshov ,  Nikolay Alexeevich Novoselov ,  Alexander Alexandrovich Sokolov

IPC: H01S304

CPC classification number: H01S3/0315 ,  H01S3/0385 ,  H01S3/041 ,  H01S3/073 ,  H01S3/076 ,  H01S3/08 ,  H01S3/08068 ,  H01S3/08081 ,  H01S3/0815 ,  H01S3/0818

Abstract: The present invention relates to laser devices with increased cooling capability by means of largely extended cooling surfaces contacting the laser active medium. According to the present invention there is provided a laser device comprising a large active volume in conjunction with a compact structure of the device and outputting single mode radiation. The laser device according to the present invention comprises the following features. A laser active medium, an optical resonator system defining an optical axis, exciting means for exciting said laser active medium and enabling a stimulated emission of radiation of said laser active medium, and cooling means, having first and second cooling elements arranged in spaced opposing relationship with surfaces facing each other, wherein said laser active medium is provided between said cooling elements along said optical axis. In order to increase the output power and to obtain single mode radiation an optical element is provided, arranged within the optical path formed by said optical resonator system and having a refractive power in a first plane, along said optical axis and perpendicular to said surfaces, differing from a refractive power in a second plane, along the optical axis and perpendicular to said first plane, wherein a contact of a laser beam deflected in said first plane with said surfaces of said first and second cooling elements is avoided.

Abstract translation: 本发明涉及通过与激光活性介质接触的大量延长的冷却表面来提高冷却能力的激光装置。 根据本发明，提供一种激光装置，其包括与该装置的紧凑结构相结合的大的有效容积并输出单模辐射。 根据本发明的激光装置包括以下特征。 激光活性介质，限定光轴的光学谐振器系统，用于激发所述激光活性介质并使能受激发射的所述激光活性介质的激励装置和冷却装置，其具有以间隔开的对置关系布置的第一和第二冷却元件 其中表面彼此面对，其中所述激光活性介质沿着所述光轴设置在所述冷却元件之间。 为了增加输出功率并获得单模辐射，光学元件设置在由所述光学谐振器系统形成的光路内，并沿着所述光轴并且垂直于所述表面具有在第一平面中的折射光焦度， 不同于第二平面中的屈光力，沿着光轴并垂直于所述第一平面，其中避免了在所述第一平面中偏转的激光束与所述第一和第二冷却元件的所述表面的接触。