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声光偏转快调谐脉冲CO2激光器实验研究

潘其坤 俞航航 陈飞 谢冀江 何洋 于德洋 张阔

潘其坤, 俞航航, 陈飞, 谢冀江, 何洋, 于德洋, 张阔. 声光偏转快调谐脉冲CO2激光器实验研究[J]. 中国光学, 2019, 12(2): 355-361. doi: 10.3788/CO.20191202.0355
引用本文: 潘其坤, 俞航航, 陈飞, 谢冀江, 何洋, 于德洋, 张阔. 声光偏转快调谐脉冲CO2激光器实验研究[J]. 中国光学, 2019, 12(2): 355-361. doi: 10.3788/CO.20191202.0355
PAN Qi-kun, YU Hang-hang, CHEN Fei, XIE Ji-jiang, HE Yang, YU De-yang, ZHANG Kuo. Experimental research on acousto-optic deflection rapid tuning pulsed CO2 lasers[J]. Chinese Optics, 2019, 12(2): 355-361. doi: 10.3788/CO.20191202.0355
Citation: PAN Qi-kun, YU Hang-hang, CHEN Fei, XIE Ji-jiang, HE Yang, YU De-yang, ZHANG Kuo. Experimental research on acousto-optic deflection rapid tuning pulsed CO2 lasers[J]. Chinese Optics, 2019, 12(2): 355-361. doi: 10.3788/CO.20191202.0355

声光偏转快调谐脉冲CO2激光器实验研究

doi: 10.3788/CO.20191202.0355
基金项目: 

脉冲功率激光技术国家重点实验室开放基金项目 SKL2015KF08

国家自然科学基金项目 61675200

中国科学院青年创新促进会资助,吉林省中青年科技创新领军人才团队项目 20170519012JH

详细信息
    作者简介:

    潘其坤(1985-), 男, 河南开封人, 博士, 副研究员, 2014年于中国科学院大学获得博士学位, 主要从事中红外激光器及其应用方面的研究。E-mail:panqikun2005@163.com

  • 中图分类号: TN248.5

Experimental research on acousto-optic deflection rapid tuning pulsed CO2 lasers

Funds: 

Foundation of State Key laboratory of Pulsed Laser Technology SKL2015KF08

National Natural Science Foundation of China 61675200

Youth Innovation Promotion Association CAS, Youth and Middle-aged Science and Technology Innovation Leader and Team Project in Jilin Province 20170519012JH

More Information
  • 摘要: 采用双声光调制器光路快速偏转技术与自准直光栅法实现CO2激光全波段快调谐同光路输出。首先对声光调制器特性进行实验研究,结果显示:声光调制器偏转角度约为4.4°,与运用布拉格方程计算结果相符;且激光单次通过声光调制器移频量为40.68 MHz,与声光驱动器射频频率一致,将激光往返多次经声光调制器的移频量叠加。进而,开展基于声光调制器的CO2激光快调谐实验研究,运用两个对称布置的同驱动频率声光调制器补偿声光移频,实现偏转光路振荡输出,运用光栅法在直线光路中实现激光全波段可调谐输出。最终,在声光调制器时序控制下,实现双波长激光快调谐同光路输出,选定激光波长的切换时间约为1 ms,脉宽小于300 ns,且双波长切换速度不受CO2激光跃迁谱带的限制。
  • 图  1  激光偏转测量装置

    Figure  1.  Setup for laser deflection measurement

    图  2  快速傅立叶分析频谱图

    Figure  2.  FFT analytical spectra

    图  3  快调谐脉冲CO2激光器实验装置

    Figure  3.  Experimental device of rapidly tunable pulsed CO2 laser

    图  4  声光调制器时序控制示意图

    Figure  4.  Schematic of sequential control of the acousto-optic modulator

    图  5  CO2激光双谱线

    Figure  5.  Double lines of CO2 laser

    图  6  双波长激光器快调谐波形

    Figure  6.  Rapidly tunable waveform of double wavelength laser

    图  7  激光脉冲宽度

    Figure  7.  Laser pulse width

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出版历程
  • 收稿日期:  2018-06-11
  • 修回日期:  2018-07-13
  • 刊出日期:  2019-04-01

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