中国激光, 2019, 46 (1): 0101002, 网络出版: 2019-01-27
正交波罗棱镜谐振腔模式研究 
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Output-Mode Simulation of Orthogonal Porro Prism Resonators
激光光学 波罗棱镜 快速傅里叶变换 直角误差 输出模式 laser optics Porro prism fast Fourier transform right angle error output mode
摘要
为了探究正交波罗(Porro)棱镜谐振腔的模式, 在菲涅耳-基尔霍夫衍射积分公式的基础上, 采用快速傅里叶变换数值模拟的方法, 对Porro棱镜谐振腔输出模式进行了仿真计算。通过比较不同脊线宽度和直角制造误差的情况, 给出了正交双Porro棱镜谐振腔腔保持单横模运转的条件。仿真结果表明, Porro棱镜的加工误差在18 μm以下和角度误差在2″以下可保证输出光斑的完整性。
Abstract
In order to explore the mode of orthogonal Porro prism, the output mode of an orthogonal Porro prism resonator is investigated on the basis of the Fresnel-Kirchhoff diffraction integral formula and is simulated by using the fast Fourier-transform algorithm. By analyzing the manufacturing errors in different apex widths and right angles of these prisms, the conditions for maintaining the single-transverse-mode operation of the orthogonal Porro prism cavity are determined. The simulation results show that the output spot integrity can be guaranteed when the machining error of Porro prism is below 18 μm and the angle error is below 2″.
龚鑫, 孟俊清, 张鑫, 蒋静, 陈卫标. 正交波罗棱镜谐振腔模式研究[J]. 中国激光, 2019, 46(1): 0101002. Gong Xin, Meng Junqing, Zhang Xin, Jiang Jing, Chen Weibiao. Output-Mode Simulation of Orthogonal Porro Prism Resonators[J]. Chinese Journal of Lasers, 2019, 46(1): 0101002.
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