Laser clamping assembly and method

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	Laser clamping assembly and method
其他题名	Laser clamping assembly and method
	MILLER, ROBERT, JOHN, DWAYNE; LIAO, YAN; ARMSTRONG, MICHAEL, ROBERT; WALKER, DAVID, RONALD
	2002-03-06
专利权人	GSI LUMONICS INC.
公开日期	2002-03-06
授权国家	欧洲专利局
专利类型	发明申请
摘要	A laser clamping system (10,80,100,130) for a laser medium (13) that includes two heat conductive members (14,16) (one of which is optically transparent) positioned on either side of the laser medium (13). Pressure (using 60,84,106,108) is applied to the conductive members to restrain the laser medium (13) from deforming under pumping conditions to reduce the lensing effect. Thin disc (12) geometry allows the thermal load of laser material to be much closer to the heat conductive members (14,16) so that heat dissipation is generally more efficient than that of other geometric configurations (e.g. rod or slab). In disc lasers (12) each part of the laser beam experiences the same temperature gradient so that there is no lensing effect caused by radial temperature distribution. It has been discovered that any resulting lensing effect is disc lasers (12) is mainly from the thermo-mechanical deformation of the disc (12) itself. Consequently, a disc laser (12) with clamped boundary conditions using the system as described above reduces the lensing effect and enables scaling laser power to a much higher level compared to unclamped disc laser systems. The clamping system and method of the present invention also improves performance in rod and slab type laser medium geometries.
其他摘要	一种用于激光介质（13）的激光夹紧系统（10,80,100,130），其包括位于激光介质（13）两侧的两个导热构件（14,16）（其中一个是光学透明的）。将压力（使用60,84,106,108）施加到导电构件上以限制激光介质（13）在泵送条件下变形以减小透镜效应。薄盘（12）的几何形状允许激光材料的热负荷更接近导热构件（14,16），使得散热通常比其他几何构造（例如杆或板）更有效。在盘式激光器（12）中，激光束的每个部分经历相同的温度梯度，从而不存在由径向温度分布引起的透镜效应。已经发现，任何产生的透镜效应是盘式激光器（12）主要来自盘（12）本身的热机械变形。因此，使用如上所述的系统的具有夹紧边界条件的盘式激光器（12）降低了透镜效应，并且与未夹紧的盘式激光器系统相比，能够将激光功率缩放到更高的水平。本发明的夹紧系统和方法还改善了杆和板式激光介质几何形状的性能。
主权项	A laser clamping system (10,80,100,130) for a laser medium (13) in a solid state laser (12) characterized by: (a) a first member (14) made from a heat conductive material; (b) a second member (16) constructed to allow a laser beam (40) to pass therethrough substantially unattenuated, the laser medium being disposed between and in contact with the first and second member; and (c) means (60,84, 106, 108) for applying pressure to the laser medium through the first and second members to inhibit thermo- deformation of the laser medium.
申请日期	2000-04-20
专利号	EP1183756A1
专利状态	失效
申请号	EP2000922363
公开（公告）号	EP1183756A1
IPC 分类号	H01S3/02 \| H01S3/042 \| H01S3/06 \| H01S3/08 \| H01S3/0941 \| H01S5/024
专利代理人	-
代理机构	BANNERMAN, DAVID GARDNER
文献类型	专利
条目标识符	http://ir.opt.ac.cn/handle/181661/52254
专题	半导体激光器专利数据库
作者单位	GSI LUMONICS INC.
推荐引用方式 GB/T 7714	MILLER, ROBERT, JOHN, DWAYNE,LIAO, YAN,ARMSTRONG, MICHAEL, ROBERT,et al. Laser clamping assembly and method. EP1183756A1[P]. 2002-03-06.