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1.发明申请
公开(公告)号：WO2014029996A1
公开(公告)日：2014-02-27
申请号：PCT/GB2013/052206
申请日：2013-08-21
发明人： KWON, Young Key , RODIN, Aleksej
CPC分类号： H01S3/109 , H01S3/025 , H01S3/027 , H01S3/0401 , H01S3/0407 , H01S3/082 , H01S3/105 , H01S3/11 , H01S3/1611 , H01S3/1643
摘要： There is provided an intracavity module (150) arranged to be replaceably-mounted inside a laser resonator cavity. The intracavity module comprises a first optical element (104), a second optical element (102) and a frequency conversion element (107). The frequency conversions element is arranged to receive light at a first frequency and output light at a second frequency. The first optical element is at least partially transmissive at the first frequency. The frequency conversion element is encapsulated by at least the first optical element and the second optical element. The laser resonator may comprise a HR end mirror (101), a Q-switch (108), a Nd:YAG laser gain medium (105), a mirror (103) being transmissive at the laser fundamental and reflective at its second-harmonic, a second-harmonic generating non-linear crystal (106), the first optical element (104) being a mirror reflective at the third-harmonic and transmissive at the fundamental and the SH, a non-linear crystal (107) for generating the third-harmonic and a mirror (102) reflecting laser fundamental and SH and transmitting the third-harmonic. The module (150) may be translated to provide a non-damage part of the facet of the third-harmonic generating crystal (107) or replaced in case this non-linear-crystal can not be used any more to extend the lifetime of the laser.
摘要翻译： 提供了腔内模块（150），其布置成可更换地安装在激光谐振腔内。 腔内模块包括第一光学元件（104），第二光学元件（102）和变频元件（107）。 频率转换元件布置成以第一频率接收光并以第二频率输出光。 第一光学元件在第一频率处至少部分透射。 变频元件至少由第一光学元件和第二光学元件封装。 激光谐振器可以包括HR端镜（101），Q开关（108），Nd：YAG激光增益介质（105），在激光基底处透射的反射镜（103），其二次谐波 ，二次谐波产生非线性晶体（106），所述第一光学元件（104）是在三次谐波处反射并在基极透射的反射镜和SH，非线性晶体（107），用于产生 三次谐波和反射（102）反射激光基波和SH并传输三次谐波。 可以将模块（150）转换为提供三次谐波产生晶体（107）的小面的非损伤部分，或者在非线性晶体不能再被使用以延长其寿命的情况下被更换 激光。
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