Volume 48 Issue 4
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Ban Xiaona, Hui Yongling, Guo Na, Jiang Menghua, Lei Hong, Li Qiang. Double-end bonded composite structure passively Q-switched micro ranging laser[J]. Infrared and Laser Engineering, 2019, 48(4): 405003-0405003(6). doi: 10.3788/IRLA201948.0405003
Citation: Ban Xiaona, Hui Yongling, Guo Na, Jiang Menghua, Lei Hong, Li Qiang. Double-end bonded composite structure passively Q-switched micro ranging laser[J]. Infrared and Laser Engineering, 2019, 48(4): 405003-0405003(6). doi: 10.3788/IRLA201948.0405003
shu

Double-end bonded composite structure passively Q-switched micro ranging laser

doi: 10.3788/IRLA201948.0405003
  • 1.

    Institute of Laser Engineering,Beijing University of Technology,Beijing 100124,China

  • Received Date: 2018-11-16
  • Rev Recd Date: 2018-12-21
  • Publish Date: 2019-04-25
  • A passively Q-switched human-eye safety micro-ranging laser with a double-end bonded composite structure was reported. The double-end bonded structure was formed by the heterogeneous material composite technology, including the gain medium Er3+/Yb3+:glass, F2 glass and passively Q-switched crystal Co2+:MgAl2O4. The output characteristics of the double-bonded composite structure and the non-composite structure were compared in the experiment. The former laser performance parameters are significantly better than the latter. The double-bonded composite structure achieved a human eye-safe laser output of pulse energy 330 J, beam quality 1.4, pulse width 5.5 ns with 10 Hz repetition frequency; the non-composite structure laser had a single pulse energy 245 J, pulse width 6.5 ns, and the beam quality 1.9. The thermal simulation of double-bonded composite structure gain media and monolithic Er3+/Yb3+:glass shows that the former has a 51.2% increase in thermal focal length relative to the latter, and the thermal effect of the double-bonded composite structure is significantly improved. The above shows that the double-bonded composite technology can reduce the temperature gradient inside the gain medium, make the thermal focal length longer, increase the volume of the mold, and improve the mode matching of the oscillating light and the pump light, so that the single pulse energy is increased.
  • [1] Zhou Bingkun, Gao Yizhi, Chen Tirong, et al. Laser Principle[M]. Beijing:National Defense Industry Press, 2000:4-24. (in Chinese)周炳琨, 高以智, 陈倜嵘, 等. 激光原理[M]. 北京:国防工业出版社, 2000:4-24.
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    [5] Xu Jia, Wu Sida, Liu Jiang, et al. Passively Q-switched erbium-doped fiber laser with grapheme oxide saturableabsorber[J]. High Power Laser and Particle Beams,2012, 24(12):2783-2786. (in Chinese)徐佳, 吴思达, 刘江, 等. 氧化石墨烯被动调Q掺铒光纤激光器[J]. 强激光与粒子束, 2012, 24(12):2783-2786.
    [6] Zhang Hui, Chen Yu, Wang Zhiteng, et al. Wavelength-tunable passively Q-switched erbium-doped fiber laser with grapheme-based saturableabsorber[J]. High Power Laser and Particle Beams, 2012, 24(12):2807-2810. (in Chinese)张慧, 陈宇, 王志腾, 等. 石墨烯可调谐被动调Q掺铒光纤激光器[J]. 强激光与粒子束, 2012, 24(12):2807-2810.
    [7] Liu Liping. Military prospect of 1.57m OPO eye-safe laser[J]. Laser Infrared, 2003, 33(4):300-303. (in Chinese)刘莉萍. 1.57m OPO人眼安全激光技术的军用前景分析[J]. 激光与红外, 2003, 33(4):300-303.
    [8] Luo Juping, He You. Discussing the exploiture of the 1.5m laser rangefinder applied in artillery safetyly[J]. Infrared and Laser Engineering, 2008, 37(s):242-244. (in Chinese)罗举平, 贺有. 开发炮兵1.5m安全型激光测距机浅析[J]. 红外与激光工程, 2008, 37(s):242-244.
    [9] Song Xinxiang, Zhang Xiaoxia, Dong Fengmei, et al. Er3+,Yb3+ co-doped phosphate glass laser and its applications[J].Laser and Optoelectronics Progress, 2004, 41(9):33-36. (in Chinese)宋新祥, 张晓霞, 董峰梅, 等. Er3+/Yb3+共掺的磷酸盐激光玻璃及其应用[J]. 激光与光电子学进展, 2004, 41(9):33-36.
    [10] Wu Ruikun, Myers J D, Myers M J, et al. Diode pumped miniature eye-safe laser Q-switched by U2:CaF2 and CO2:MgA12O4[C]//SPIE, 2002, 4723:94-99.
    [11] Zhang Yulu, Hui Yongling, Jiang Menghua, et al. Experimental study on passively Q-switched microlaser of LD pumped codoped phosphate glass[J]. Infrared and Laser Engineering, 2017, 46(3):0305004. (in Chinese)张宇露, 惠勇凌, 姜梦华, 等. LD泵浦铒镱共掺磷酸盐玻璃被动调Q微型激光器实验研究[J]. 红外与激光工程, 2017, 46(3):0305004.
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Double-end bonded composite structure passively Q-switched micro ranging laser

doi: 10.3788/IRLA201948.0405003
  • 1. Institute of Laser Engineering,Beijing University of Technology,Beijing 100124,China
  • Received Date: 2018-11-16
  • Rev Recd Date: 2018-12-21
  • Publish Date: 2019-04-25

Abstract: A passively Q-switched human-eye safety micro-ranging laser with a double-end bonded composite structure was reported. The double-end bonded structure was formed by the heterogeneous material composite technology, including the gain medium Er3+/Yb3+:glass, F2 glass and passively Q-switched crystal Co2+:MgAl2O4. The output characteristics of the double-bonded composite structure and the non-composite structure were compared in the experiment. The former laser performance parameters are significantly better than the latter. The double-bonded composite structure achieved a human eye-safe laser output of pulse energy 330 J, beam quality 1.4, pulse width 5.5 ns with 10 Hz repetition frequency; the non-composite structure laser had a single pulse energy 245 J, pulse width 6.5 ns, and the beam quality 1.9. The thermal simulation of double-bonded composite structure gain media and monolithic Er3+/Yb3+:glass shows that the former has a 51.2% increase in thermal focal length relative to the latter, and the thermal effect of the double-bonded composite structure is significantly improved. The above shows that the double-bonded composite technology can reduce the temperature gradient inside the gain medium, make the thermal focal length longer, increase the volume of the mold, and improve the mode matching of the oscillating light and the pump light, so that the single pulse energy is increased.

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