Analysis of torque mounting configuration for nonlinear optics with large aperture
Analysis of torque mounting configuration for nonlinear optics with large aperture
复制标题
大口径非线性光学器件扭矩安装结构分析
DOI：
10.1016/j.optlastec.2013.11.017
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发表时间：
2014-06-01
影响因子：
5
通讯作者：
Lu, Lihua
中科院分区：
文献类型：
--
作者：
Liang, Yingchun;Su, Ruifeng;Lu, Lihua
出于减少大口径非线性光学器件的重力畸变和应力以及提高二次谐波产生（SHG）效率的需要，提出了一种扭矩安装结构，其中外部负载产生扭矩以减轻畸变和应力。利用有限元法(FEM)计算了变形和应力，并从扭矩的角度进行了讨论。研究了设计参数，即外部载荷、加载宽度、垫板位置和垫板宽度的影响；分析了变形和应力随参数变化的变化趋势。此外，还计算了由畸变和应力引起的相位失配；最后，考虑相位失配的情况下解决了SHG效率问题。 (C) 2013 Elsevier Ltd. 保留所有权利。
Motivated by the need of decreasing the gravitational distortion and stress of the nonlinear optics with large aperture, as well as increasing the second harmonic generation (SHG) efficiency, a torque mounting configuration was proposed, where the external load brought about the torque to mitigate the distortion and stress. The distortion and stress were calculated by using the Finite Element Method (FEM), and discussed from the view of torque. The effects of the design parameters, namely the external load, loading width, shim plate location and shim plate width, were studied; the changing trends of the distortion and stress with these varying parameters were analyzed. Furthermore, the phase mismatches induced by the distortion and stress were calculated; finally, the SHG efficiency was solved considering the phase mismatch. (C) 2013 Elsevier Ltd. All rights reserved.