中国激光, 2004, 31 (11): 1317, 网络出版: 2006-06-12   

用快速傅里叶变换法分析超高斯反射镜腔的光场分布

Analysing the Light Intensity Distribution of Super-Gaussian Mirror Resonator by Fast Fourier-Transform
作者单位
中国科学院上海光学精密机械研究所, 上海 201800
摘要
常规非稳腔由于输出耦合镜硬边光阑的衍射效应而影响了激光输出。使用非均匀反射镜,可以起到软边光阑的作用,改善了输出光束的光场分布特性。高斯分布反射镜已经被广泛应用,超高斯分布反射镜的提出是对非均匀反射腔的一大改进。快速傅里叶变换(FFT)方法是计算激光腔光场分布的一种方便快捷的方法,利用快速傅里叶变换方法分析了超高斯反射镜腔的腔内三维光场分布情况,并模拟了热透镜焦距变化时腔内光场分布的变化。然后分别在空腔和考虑热透镜效应的情况下对输出光束的光场分布进行了理论模拟,并讨论了热透镜效应对输出光场分布的影响。
Abstract
For the conventional unstable resonator, the output laser is deteriorated by the hard-edge diaphragm diffraction. Using variable reflective mirror, as a soft-edge diaphragm, the intensity distributions of output laser are improved. Gaussian mirror has been used widely, and the super-Gaussian mirror is a development for variable reflective mirror. The fast Fourier-transform (FFT) algorithm is a convenient method for simulating the intensity distribution of resonator. In this paper, the three-dimensional intracavity distribution of super-Gaussian mirror resonator is analyzed, and the intensity distributions are simulated when the thermal focal length changes. Then the output intensity distributions are simulated with or without considering the thermal lens effect. And the influence of the thermal lens effect is discussed.
参考文献

[1] W. Koechner, translated by Sun Wen, Jiang Zewen, Cheng Guoxiang. Solid-State Laser Engineering [M]. First ed., Beijing:Science Press, 2002. 243
W. 克希耐尔 著,孙文,江泽文,程国祥 译. 固体激光工程[M]. 第一版,北京:科学出版社,2002. 243

[2] . Giulani, Y. K. Park, R. L. Byer. Radial birefringent element and its application to laser resonator design[J]. Opt. Lett., 1980, 5(11): 491-493.

[3] . M. Eggleston, G. Giulani, R. L. Byer. Radial intensity filters using radial birefringent elements[J]. J. Opt. Soc. Am., 1981, 71(10): 1264-1272.

[4] . J. Harter, J. C. Walling. Low-magnification unstable resonators used with ruby and alexandrite lasers[J]. Opt. Lett., 1986, 11(11): 706-708.

[5] . De Silvestri, P. Laporta, V. Magni et al.. Radially variable reflectivity output coupler of novel design for unstable resonators[J]. Opt. Lett., 1987, 12(2): 84-86.

[6] . McCarthy, P. Lavigne. Optical resonators with Gaussian reflectivity mirrors: misalignment sensitivity[J]. Appl. Opt., 1983, 22(17): 2704-2708.

[7] . McCarthy, P. Lavigne. Optical resonators with Gaussian reflectivity mirrors: output beam characteristics[J]. Appl. Opt., 1984, 23(21): 3845-3850.

[8] . M. Walsh, L. V. Knight. Transverse modes of a laser resonator with Gaussian mirrors[J]. Appl. Opt., 1986, 25(17): 2947-2954.

[9] A. Parent, N. McCarthy, P. Lavigne. Effects of hard apertures on mode properties of resonators with Gaussian reflectivity mirrors [J]. IEEE J. Quantum Electron., 1987, QE-23(2):222~228

[10] P. Lavigne, N. McCarthy, J.-G. Demers. Design and characterization of complementary Gaussian reflectivity mirrors [J]. Appl. Opt. 1985, 24(16):2581~2586

[11] . McCarthy, P. Lavigne. Large Gaussian mode in unstable resonators using Gaussian mirrors[J]. Opt. Lett., 1985, 10(11): 553-555.

[12] K. J. Snell, N. McCarthy, M. Piche. Single transverse mode oscillation from an unstable resonator Nd∶YAG laser using a variable reflectivity mirror [J]. Opt. Commun. 1988, 65(5):377~382

[13] . Parent, P. Lavigne. Variable reflectivity unstable resonators for coherent laser radar emitters[J]. Appl. Opt., 1989, 28(5): 901-903.

[14] . Emiliani, A. Piegari, S. De Silvestri et al.. Optical coatings with variable reflectance for laser mirrors[J]. Appl. Opt., 1989, 28(14): 2832-2837.

[15] . D. Siliverstri, V. Magni, O. Svelto et al.. Lasers with super-Gaussian mirrors[J]. IEEE J. Quantum Electron., 1990, 26(9): 1500-1509.

[16] . A. Sziklas, A. E. Siegman. Mode calculations in unstable resonators with flowing saturable gain. 2:Fast Fourier transform method[J]. Appl. Opt., 1975, 14(8): 1874-1889.

[17] Wei Qing, Wei Zaifu, Wang Runwen. Mode calculations in annular output ring unstable resonators with 90° beam-rotation [J]. Chinese J. Lasers, 1999, A26(9):852~858
魏青,魏在福,王润文. 环状耦合输出的90°束转非稳腔的模场计算[J]. 中国激光, 1999, A26(9):852~858

[18] Lü Baida. Solid State Laser Device [M]. Beijing: Beijing University Press of Posts and Telecommunications, 2002. 89~94, 153~154
吕百达 著.固体激光器件[M]. 北京:北京邮电大学出版社,2002. 89~94,153~154

[19] . G. Fox, T. Li. Resonant modes in maser interferometer[J]. Bell Syst. Technol. J., 1961, 40(2): 453-455.

王宁, 陆雨田, 孔勇. 用快速傅里叶变换法分析超高斯反射镜腔的光场分布[J]. 中国激光, 2004, 31(11): 1317. 王宁, 陆雨田, 孔勇. Analysing the Light Intensity Distribution of Super-Gaussian Mirror Resonator by Fast Fourier-Transform[J]. Chinese Journal of Lasers, 2004, 31(11): 1317.

本文已被 17 篇论文引用
被引统计数据来源于中国光学期刊网
引用该论文: TXT   |   EndNote

相关论文

加载中...

关于本站 Cookie 的使用提示

中国光学期刊网使用基于 cookie 的技术来更好地为您提供各项服务,点击此处了解我们的隐私策略。 如您需继续使用本网站,请您授权我们使用本地 cookie 来保存部分信息。
全站搜索
您最值得信赖的光电行业旗舰网络服务平台!