Evaluation of far field optical quality of TEA CO2 laser with unstable resonator

GUO Ru-hai; ZHANG He-yong; WANG Ting-feng

doi:10.3788/OPE.20111902.0407

您当前的位置：

首页 >

文章列表页 >

Evaluation of far field optical quality of TEA CO₂ laser with unstable resonator

Article | 更新时间：2020-08-12

- Evaluation of far field optical quality of TEA CO₂ laser with unstable resonator
- Optics and Precision Engineering Vol. 19, Issue 2, Pages: 407-413(2011)
- 作者机构：
  
  中国科学院长春光学精密机械与物理研究所激光与物质相互作用国家重点实验室,吉林长春 130033
- 作者简介：
- 基金信息：
- DOI：10.3788/OPE.20111902.0407
  CLC： TN248.22
- Received：08 October 2010，
  
  Revised：30 October 2010，
  
  Published Online：22 February 2011，
  
  Published：22 February 2011
- 稿件说明：
移动端阅览
郭汝海, 张合勇, 王挺峰. TEACO2非稳腔激光器远场光束质量的评价[J]. 光学精密工程, 2011,19(2): 407-413

GUO Ru-hai, ZHANG He-yong, WANG Ting-feng. Evaluation of far field optical quality of TEA CO2 laser with unstable resonator[J]. Editorial Office of Optics and Precision Engineering, 2011,19(2): 407-413
郭汝海, 张合勇, 王挺峰. TEACO2非稳腔激光器远场光束质量的评价[J]. 光学精密工程, 2011,19(2): 407-413 DOI： 10.3788/OPE.20111902.0407.

GUO Ru-hai, ZHANG He-yong, WANG Ting-feng. Evaluation of far field optical quality of TEA CO2 laser with unstable resonator[J]. Editorial Office of Optics and Precision Engineering, 2011,19(2): 407-413 DOI： 10.3788/OPE.20111902.0407.

摘要

研究了对虚共焦非稳腔结构的脉冲TEA CO

激光器远场光束质量进行评价的方法。首先将稳腔TEA CO

激光器加工改造成非稳腔结构;然后从实际设计加工的数据出发

用3种常用形式对其远场光束质量进行理论评价与分析

并与设计的2 kW非稳腔激光器的实测远场光强分布实验结果进行了对比。理论和实验结果表明

非稳腔能够获得接近衍射极限的高质量单模光束

因子是稳腔的4倍多;在同等功率水平下

采用非稳腔的激光器的远场功率密度是稳腔的19倍;非稳腔较小的遮拦比能获得远场较高桶中功率。实验表明

要全面地预测和评价所设计非稳腔激光器的光束质量

需要根据实际

综合地运用3种形式的理论评价体系。

Abstract

The evaluation methods for far field optical quality of a TEA CO

laser with a unstable resonator were researched. Based on the real data of the unstable resonator modified by the stable resonator of a high power TEA CO

laser

three common theoretical evaluation methods were conducted to evaluate the optical quality.Obtained results were compared with that from the far field optical intensity distribution of a designed 2 kW unstable resonator laser. The analysis and comparison show that the unstable resonator can obtain a near diffraction limit and a high optical quality beam and the factor is 4 times that of the stable resonator. Under the same power level

the far field power density of the unstable resonator is 19 times that of the stable one. Furthermore

the smaller block factor can obtain a higher power in bucket for the unstable resonator. It is concluded that the comprehensive prediction and evaluation of designed unstable resonator need to synthetically use the three theoretical methods to complete.

关键词

Keywords

references

杜祥琬. 实际强激光远场靶面上光束质量的评价因素[J]. 中国激光,1997,24(4):327-332. DU X W. Factors for evaluating beam quality of a real high power laser on the target surface in far field [J]. Chinese Chinese Journal of Laser, 1997, 24(4):327-332. (in Chinese)[2] 左铁钏. 制造用激光光束质量、传输质量与聚焦质量[M]. 北京:科学出版社, 2008:7-23. ZUO T ZH. Manufacturing Laser-optical Beam quality, Transmission Quality and Focus Quality [M]. Beijing:Science Press, 2008:7-23.(in Chinese)[3] 郭汝海,李殿军,杨贵龙,等. 大功率TEA CO2激光器非稳腔的设计与实验[J]. 中国光学与应用光学, 2009,2(3):253-257. GUO R H,LI D J,YANG G L, et al.. Design and experiment of unstable resonator for high-power TEA CO2 laser [J]. Chinese Journal of Optics and Applied Optics, 2009,2(3):253-257. (in Chinese)[4] 郭汝海,张来明,杨贵龙,等. 高功率脉冲非稳腔TEA CO2激光器[J]. 中国激光, 2009, 36(s1):82-85. GUO R H,ZHANG L M,YANY G L, et al.. High power pulsed TEA CO2 laser with unstable resonator[J]. Chinese Journal of Lasers, 2009,36(s1):82-85. (in Chinese)[5] 吴晗平. 激光光束质量的评价与应用分析[J]. 光学精密工程,2000,8(2):128-132. WU H P. Evaluation and applied analysis of laser beam quality [J]. Opt. Precision Eng., 2000,8(2):128-132. (in Chinese)[6] 王思雯,郭立红,李岩,等. 高功率TEA CO2激光器非稳腔的远场光束质量[J]. 中国激光, 2009, 36(s2):14-17. WANG S W,GUO L H,LI Y,et al.. Far-field beam quality of high-power unstable resonators TEA CO2 laser [J]. Chinese Journal of Lasers, 2009,36(s2):14-17. (in Chinese)[7] 王思雯,郭立红,赵帅,等. 高功率CO2激光对远场HgCdTe探测器的干扰实验[J]. 光学精密工程, 2010,18(4):798-804. WANG S W,GUO L H,ZHAO SH, et al.. Experiments of high-power CO2 laser disturbance to far-field HgCdTe detectors [J]. Opt. Precision Eng., 2010,18(4):798-804. (in Chinese)[8] 李殿军,杨贵龙,谢冀江,等. 9.3 m脉冲CO2激光倍频实验[J]. 光学精密工程, 2009,17(11):2684-2691. LI D J,YANG G L,XIE J J, et al.. Experiments of second harmonic generation of 9.3 m pulsed CO2 lasers [J]. Opt. Precision Eng., 2009,17(11):2684-2691. (in Chinese)[9] 罗时荣,吕百达,黄鹭. 非稳腔的远场光强分布和光束质量[J]. 激光技术,1999,23(5): 281-284. LUO SH R, L B D, HUANG L. The far-field intensity distribution and beam quality of unstable resonators [J]. Laser Technology, 1999,23(5):281-284. (in Chinese)[10] 杨峰,余文峰,陈佳元,等. TEA CO2激光器同轴非稳腔光束质量[J]. 激光技术, 2008,32(3):314-316. YANG F, YU W F, CHEN J Y, et al.. Beam quality of TEA CO2 lasers with coaxial output unstable resonators [J]. Laser Technology, 2008,32(3):314-316. (in Chinese)[11] 刘泽金,陆启生,赵伊君. 高能非稳腔激光器光束质量评价的探讨[J]. 中国激光,1998,25(3):193-196. LIU Z J, LU Q SH, ZHAO Y J. Study of evaluating beam quality of high energy lasers with unstable resonators [J]. Chinese Journal of Lasers, 1998,25(3):193-196. (in Chinese)[12] BORN M, WOLF E. Principles of Optics[M]. 5th ed.Oxford: Pergmon Press, 1975:362-368.

Views

501

下载量

CSCD

Alert me when the article has been cited

提交

Tools

Publicity Resources

No data

Related Author

No data

Related Institution

No data

AI问答

Address：No.3888 Dong Nanhu Road, Changchun, Jilin, China Postal code：130033
Tel：0431-86176855 Email：gxjmgc@ciomp.ac.cn
Technical support is provided by Beijing Founder electronics co., LTD 吉ICP备11002662号-17 京公网安备11010802024621
It is recommended to read the content of this site in Chrome&IE9+. Please switch to extreme mode in browser 360.
Cookies We use cookies to help provide and enhance our service and tailor content. By continuing, you agree to the use of cookies.

⁰