激光V型腔参量对输出性能的影响
|
摘要
在激光腔型设计时,为了使激光具有良好的输出性能,需要找出谐振腔参量对激光输出性能的影响规律。结合V型折叠腔的图解分析法和多元件光学谐振腔的等价腔分析法,将折叠腔近似等价后,对等价的共轴球面空腔的稳定性和输出光束质量进行理论求解分析,找到了V型折叠腔参量和激光输出性能的内在联系。通过计算给定的条件可知,当折叠角θ=0.15π时,总腔长L的理想取值范围为(70,80)mm,最佳取值为75 mm,端面镜曲率半径R1、R2的允许变化范围为(60,75)mm,折叠镜曲率半径R3的最小取值为45 mm,随着左(右)侧子腔g-参数积增大,右(左)侧端面镜上的基模光斑半径和远场发散角增大。上述等价腔分析法和结论对激光腔型优化设计提供了重要的理论依据。
In order to make the laser with V-resonator have good output performance, it is necessary to find the influence rules of cavity parameters on the laser output performance in laser cavity design.Combining the graphic analysis method of V-type folded cavity and the equivalent cavity analysis method of multicomponent optical resonator, the stability of the equivalent coaxial spherical cavity and the output laser beam quality were theoretically solved and analyzed after equivalent approximation of the folded cavity. The internal relationship between the V-type folded cavity parameters and the laser output performance were found. By calculating the given conditions, some results were known. The ideal value range of total cavity length L is 70-80 mm with the optimal value 75 mm when the folding angle θ is equal to 0.15π. The allowable variation range of curvature radius of end mirrors R1 and R2is 60-80 mm. And the curvature radius of of folding mirror R3 has a minimum value of 45 mm. The laser spot radius and the farfield divergence angle of fundamental mode on the right(left) end mirror will become larger with the increase of g-parameters of left(right) subcavity. The above-mentioned equivalent cavity analysis method and the achieved results can provide an important reference theoretically for the cavity optimization design.
In order to make the laser with V-resonator have good output performance, it is necessary to find the influence rules of cavity parameters on the laser output performance in laser cavity design.Combining the graphic analysis method of V-type folded cavity and the equivalent cavity analysis method of multicomponent optical resonator, the stability of the equivalent coaxial spherical cavity and the output laser beam quality were theoretically solved and analyzed after equivalent approximation of the folded cavity. The internal relationship between the V-type folded cavity parameters and the laser output performance were found. By calculating the given conditions, some results were known. The ideal value range of total cavity length L is 70-80 mm with the optimal value 75 mm when the folding angle θ is equal to 0.15π. The allowable variation range of curvature radius of end mirrors R1 and R2is 60-80 mm. And the curvature radius of of folding mirror R3 has a minimum value of 45 mm. The laser spot radius and the farfield divergence angle of fundamental mode on the right(left) end mirror will become larger with the increase of g-parameters of left(right) subcavity. The above-mentioned equivalent cavity analysis method and the achieved results can provide an important reference theoretically for the cavity optimization design.
引文
[1] Chen Xinyu, Wang Di, Wang Chao, et al. Effect of Nd~(3+)doping concentration on the output characteristics of the no water cooling Nd:YAG laser[J]. Infrared and Laser Engineering, 2011, 40(4):817-821.(in Chinese)陈薪羽,王迪,王超,等. Nd~(3+)掺杂浓度对无水冷Nd:YAG激光器输出特性的影响[J].红外与激光工程, 2011,40(4):817-821.
[2] Zeng Qinyong, Wan Yong, Qin Kaiyu. Laser resonator of novel configuration applicable to efficient electro-optical countermeasure[J]. Infrared and Laser Engineering, 2017,46(8):0806002.(in Chinese)曾钦勇,万勇,秦开宇.可应用于高效光电对抗的新颖结构激光谐振腔[J].红外与激光工程, 2017, 46(8):0806002.
[3] Meng Peibei, Shi Wenzong, Yan Fanjiang, et al. Influence of resonator misalignment on performance of diode-pumped Nd:YAG laser[J]. Infrared and Laser Engineering, 2017, 45(6):0605001.(in Chinese)蒙裴贝,史文宗,颜凡江,等.谐振腔失谐对二极管泵浦Nd:YAG激光器性能的影响[J].红外与激光工程, 2017,45(6):0605001.
[4] Yu Xudong, Lei Wen, Liu Chang. Deformation law of optical resonant cavity under random vibration environment[J].Optics and Precision Engineering, 2017, 25(2):281-288.(in Chinese)于旭东,雷雯,刘畅.随机振动下光学谐振腔腔体形变及变动规律[J].光学精密工程, 2017, 25(2):281-288.
[5] Zhang Lingkai, Gu Huadong, Zheng Chenqi, et al. Analysis and design of the thermal-lens-insensitive cavity in longpulse green lasers[J]. Laser Technology, 2011, 35(2):167-169.(in Chinese)张令开,顾华东,郑陈琪,等.热透镜不灵敏长脉冲绿激光腔的设计与分析[J].激光技术, 2011, 35(2):167-169.
[6] Liao Xiaolu, Guo Jia, He Jianjun. Tunable V-cavity laser with butt-joint passive tuning section for fast wavelength switching[J]. IEEE Photonics Journal, 2017, 9(4):1503807.
[7] Li Chong, Xie Jijiang, Pan Qikun, et al. Progress of midinfrared optical parametri coscillator[J]. Chinese Optics,2016, 9(6):615-624.(in Chinese)李充,谢冀江,潘其坤,等.中红外光学参量振荡器技术进展[J].中国光学, 2016, 9(6):615-624.
[8] Maik Scheller, Caleb W Baker, Stephan W Koch, et al. High power dual-wavelength VECSEL based on a multiple folded cavity[J]. IEEE Photonics Technology Letters, 2017, 29(10):790-793.
[9] Wan Daping, Wang Yumin, Gui Zhenxing, et al. A new method for stability analysis and design of laser folded cavity[J]. Chinese Joumal of Lasers, 2007, 34(9):1217-1221.(in Chinese)万大平,王裕民,归振兴,等.一种激光折叠腔稳定性分析及设计的新方法[J].中国激光, 2007, 34(9):1217-1221.
[10] Li Feng, Bai Yang, Bai Jintao, et al. A thermal dynamic graphic analysis of V type solid laser resonator[J]. Journal of Yanbian University:Natural Science Edition, 2006, 32(3):176-180.(in Chinese)李锋,白杨,白晋涛,等.一种V型固体激光腔的热动力图解分析[J].延边大学学报:自然科学版, 2006, 32(3):176-180.
[11] Kogelnik H. Imaging of optical modes-resonators with internal lenses[J]. Bell Labs Technical Journal, 1965, 44(3):455-494.
[12] Zhou Bingkun. Laser Principle[M]. 7th ed. Beijing:National Defence Industry Press, 2014.(in Chinese)周炳琨.激光原理[M].第7版.北京:国防工业出版社, 2014.
[13] Cao Qing, Zhang Weijun. Equivalent cavity of multi-element resonant cavity[J]. Acta Optica Sinica, 1994, 14(2):135-139.(in Chinese)曹清,张为俊.多元件谐振腔的等价腔[J].光学学报,1994, 14(2):135-139.
[14] Lv Baida, Wei Guanghui. The equivalent resonator optical resonators analysis method[J]. Journal of Sichuan University Natural Science Edition, 1985(4):53-60.(in Chinese)吕百达,魏光辉.多元件光学谐振腔的等价腔分析法[J].四川大学学报自然科学版, 1985(4):53-60.
[2] Zeng Qinyong, Wan Yong, Qin Kaiyu. Laser resonator of novel configuration applicable to efficient electro-optical countermeasure[J]. Infrared and Laser Engineering, 2017,46(8):0806002.(in Chinese)曾钦勇,万勇,秦开宇.可应用于高效光电对抗的新颖结构激光谐振腔[J].红外与激光工程, 2017, 46(8):0806002.
[3] Meng Peibei, Shi Wenzong, Yan Fanjiang, et al. Influence of resonator misalignment on performance of diode-pumped Nd:YAG laser[J]. Infrared and Laser Engineering, 2017, 45(6):0605001.(in Chinese)蒙裴贝,史文宗,颜凡江,等.谐振腔失谐对二极管泵浦Nd:YAG激光器性能的影响[J].红外与激光工程, 2017,45(6):0605001.
[4] Yu Xudong, Lei Wen, Liu Chang. Deformation law of optical resonant cavity under random vibration environment[J].Optics and Precision Engineering, 2017, 25(2):281-288.(in Chinese)于旭东,雷雯,刘畅.随机振动下光学谐振腔腔体形变及变动规律[J].光学精密工程, 2017, 25(2):281-288.
[5] Zhang Lingkai, Gu Huadong, Zheng Chenqi, et al. Analysis and design of the thermal-lens-insensitive cavity in longpulse green lasers[J]. Laser Technology, 2011, 35(2):167-169.(in Chinese)张令开,顾华东,郑陈琪,等.热透镜不灵敏长脉冲绿激光腔的设计与分析[J].激光技术, 2011, 35(2):167-169.
[6] Liao Xiaolu, Guo Jia, He Jianjun. Tunable V-cavity laser with butt-joint passive tuning section for fast wavelength switching[J]. IEEE Photonics Journal, 2017, 9(4):1503807.
[7] Li Chong, Xie Jijiang, Pan Qikun, et al. Progress of midinfrared optical parametri coscillator[J]. Chinese Optics,2016, 9(6):615-624.(in Chinese)李充,谢冀江,潘其坤,等.中红外光学参量振荡器技术进展[J].中国光学, 2016, 9(6):615-624.
[8] Maik Scheller, Caleb W Baker, Stephan W Koch, et al. High power dual-wavelength VECSEL based on a multiple folded cavity[J]. IEEE Photonics Technology Letters, 2017, 29(10):790-793.
[9] Wan Daping, Wang Yumin, Gui Zhenxing, et al. A new method for stability analysis and design of laser folded cavity[J]. Chinese Joumal of Lasers, 2007, 34(9):1217-1221.(in Chinese)万大平,王裕民,归振兴,等.一种激光折叠腔稳定性分析及设计的新方法[J].中国激光, 2007, 34(9):1217-1221.
[10] Li Feng, Bai Yang, Bai Jintao, et al. A thermal dynamic graphic analysis of V type solid laser resonator[J]. Journal of Yanbian University:Natural Science Edition, 2006, 32(3):176-180.(in Chinese)李锋,白杨,白晋涛,等.一种V型固体激光腔的热动力图解分析[J].延边大学学报:自然科学版, 2006, 32(3):176-180.
[11] Kogelnik H. Imaging of optical modes-resonators with internal lenses[J]. Bell Labs Technical Journal, 1965, 44(3):455-494.
[12] Zhou Bingkun. Laser Principle[M]. 7th ed. Beijing:National Defence Industry Press, 2014.(in Chinese)周炳琨.激光原理[M].第7版.北京:国防工业出版社, 2014.
[13] Cao Qing, Zhang Weijun. Equivalent cavity of multi-element resonant cavity[J]. Acta Optica Sinica, 1994, 14(2):135-139.(in Chinese)曹清,张为俊.多元件谐振腔的等价腔[J].光学学报,1994, 14(2):135-139.
[14] Lv Baida, Wei Guanghui. The equivalent resonator optical resonators analysis method[J]. Journal of Sichuan University Natural Science Edition, 1985(4):53-60.(in Chinese)吕百达,魏光辉.多元件光学谐振腔的等价腔分析法[J].四川大学学报自然科学版, 1985(4):53-60.