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2. 发明授权

US07388895B2 Corner-pumping method and gain module for high power slab laser 有权
标题翻译：大功率平板激光的角抽法和增益模块
公开(公告)号：US07388895B2
公开(公告)日：2008-06-17
申请号：US10719072
申请日：2003-11-21
申请人： Mali Gong , Chen Li , Qiang Liu , Ping Yan , Gang Chen , HaiTao Zhang , Ruizhen Cui
发明人： Mali Gong , Chen Li , Qiang Liu , Ping Yan , Gang Chen , HaiTao Zhang , Ruizhen Cui
IPC分类号： H01S3/06 , H01S3/093
CPC分类号： H01S3/0606 , H01S3/042 , H01S3/0615 , H01S3/08095 , H01S3/094057 , H01S3/0941 , H01S3/1611 , H01S3/1643 , H01S3/2316
摘要： Corner pumping method and gain module for high power slab laser are disclosed. In one embodiment, said method comprises directing a pump light from one or more pump light sources each consisting of a high power diode array and its coupling system into a laser slab through prior cut slab corners of said laser slab without restriction to the incident angle or the polarization state of the pump light, wherein said laser slab includes an undoped circumambient portion and one or more doped central portions; propagating said pump light within the laser slab by total internal reflection (TIR), wherein said pump light firstly pass said undoped circumambient portion, secondly pass said doped central portion, thirdly pass said undoped circumambient portion again, and fourthly take inner reflection at the surface of said undoped circumambient portion, and by repeating these steps, achieve multi-pass absorption; and substantially absorbing the pump light during propagating. In another embodiment, said gain module comprises a laser slab formed by solid state laser material, said laser slab including an undoped circumambient portion and one or more doped central portions and prior cut slab corners with corner faces; and one or more pump source providing a pump light; wherein said pump light is directed into said laser slab through said slab corners of said laser slab, propagated within said laser slab and substantially absorbed during propagation; and wherein said laser slab outputs an amplified laser beam.
摘要翻译：公开了用于大功率平板激光器的角泵抽法和增益模块。在一个实施例中，所述方法包括将来自每个由高功率二极管阵列及其耦合系统组成的一个或多个泵浦光源的泵浦光引导至激光板，通过所述激光板的先前切割的平板角而不限制入射角，或泵浦光的偏振状态，其中所述激光平板包括未掺杂的环形部分和一个或多个掺杂的中心部分; 通过全内反射（TIR）在激光板内传播所述泵浦光，其中所述泵浦光首先通过所述未掺杂的环形部分，其次通过所述掺杂的中心部分，再次再次通过所述未掺杂的环形部分，并且第四次在所述表面处进行内部反射的所述未掺杂的环状部分，并且通过重复这些步骤，实现多遍吸收; 并且在传播期间基本上吸收泵浦光。在另一实施例中，所述增益模块包括由固体激光材料形成的激光平板，所述激光板包括未掺杂的环形部分和一个或多个掺杂的中心部分以及具有拐角面的先前切割的平板角部; 以及提供泵浦光的一个或多个泵浦源; 其中所述泵浦光通过所述激光板的所述板角转入所述激光板，在所述激光板内传播并在传播过程中基本上被吸收; 并且其中所述激光板输出放大的激光束。

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