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The distribution of population inversion has been obtained by solving the rate equations of a Tm and Ho codoped laser system. A giant pulse laser output of 88.4 mJ with pulse duration of 426 ns has been predicted at 0.1% duty cycle of LD pump source. In a 2 m ring resonator, the Tm, Ho:LuLF laser material has been side-pumped from three directions and Q-switched for acoustic-optic device. The slope efficiency is 6.36% in free running mode and 2.9% in Q-switching mode. When 3.25 J pump energy in 1 Hz repetition frequency is injected, it has been demonstrated that the laser pulse energy of 103.2 mJ with an optical-to-optical efficiency of 3.17% in the free running mode and 30.3 mJ with 0.93% optical-to-optical efficiency. When 3.5 J pump energy is injected, it has been obtained that the pulse energies of 129.3 mJ and 35.9 mJ in the two modes with optical-to-optical efficiencies of 3.69% and 1.02% respectively. The greatest dynamic to static ratio is 32.8%. The pulse duration is 417.2 ns when 3.25J pump energy is injected. If the ring resonator operates unidirectionally, the laser energy and the corresponding optical efficiency will be doubled, the result being in agreement with the theoretical analysis of rate equations.
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Keywords:
- Tm /
- Ho:LuLF /
- rate equations /
- energy transfer /
- Q-laser
[1] Walsh B M, Barnes N P, Singh U N 2008 Proceedings of SPIE 7153: 08-1-08-10
[2] Mulugeta Petros, Jirong Yu, Songsheng Chen 2003 Proceedings of SPIE 4893: 203-210
[3] Walsh B M, Barnes N P, Mulugeta Petros, Jirong Yu, Singh U N 2004 J. Appl. Phys. 95 3255
[4] Zhang X L, Wang Y Z 2006 Acta Phys. Sin. 55 1160 (in Chinese) [张新陆, 王月珠 2006 55 1160]
[5] Zhang X L, Wang Y Z, Shi H F 2006 Acta Phys. Sin. 55 1787 (in Chinese) [张新陆, 王月珠, 史洪峰 2006 55 1787]
[6] Xia Z C, Yang F G, Qiao L 2013 Acta Phys. Sin. 62 114206 (in Chinese) [夏忠朝, 羊富贵, 乔亮 2013 62 114206]
[7] Walsh B M, Barnes N P, Mulugeta Petros, Jirong Yua, Singh U N 2005 Proceedings of SPIE (SPIE, Bellingham, WA 2005) Lidar Remote Sensing for Industry and Environmental Monitoring V 2005, 5653:24-32
[8] Louchev O A, Yoshiharu Urata, Satoshi Wada 2007 Opt. Exp. 15 3940
[9] Gao J Y, Zhang Q L, Sun D L, Liu W P, Yang H J, Wang X F, Yin S T 2013 Acta Phys. Sin. 62 013102 (in Chinese) [高进云, 张庆礼, 孙敦陆, 刘文鹏, 杨华军, 王小飞, 殷绍唐 2013 62 013102]
[10] Shu S J, Yu T, Liu R T, Hou J Y, Hou X, Chen W B 2011 COL 9 091407
[11] Shu S J, Yu T, Zang H G, Liu D, Hou X, Chen W B 2011 Infrared and Laser Engineering 40 1442 (in Chinese) [舒仕江, 余婷, 臧华国, 刘丹, 侯霞, 陈卫标2011红外与激光工程40 1442]
[12] Qiao L, Hou X, Chen W B 2009 Chinese Journal of Lasers 36 1327 (in Chinese) [乔亮, 侯霞, 陈卫标2009中国激光36 1327]
[13] Qiao L, Hou X, Liu Y, Chen W B 2009 Laser Physics 19 1402
[14] Wan S P 2004 Ph. D. Dissertation (Beijing: Tsinghua University) (in Chinese) [万顺平 2004 博士学位论文 (北京: 清华大学)]
[15] Koechner W (translated by Sun W, Jiang Z W, Cheng G X) 2002 Solid-State Laser Engineering (Beijing: Science Press) pp18-22 (in Chinese) [W. 克希耐尔著(孙文, 江泽文, 程国祥译) 2002固体激光工程(北京: 科学出版社)第18–22页]
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[1] Walsh B M, Barnes N P, Singh U N 2008 Proceedings of SPIE 7153: 08-1-08-10
[2] Mulugeta Petros, Jirong Yu, Songsheng Chen 2003 Proceedings of SPIE 4893: 203-210
[3] Walsh B M, Barnes N P, Mulugeta Petros, Jirong Yu, Singh U N 2004 J. Appl. Phys. 95 3255
[4] Zhang X L, Wang Y Z 2006 Acta Phys. Sin. 55 1160 (in Chinese) [张新陆, 王月珠 2006 55 1160]
[5] Zhang X L, Wang Y Z, Shi H F 2006 Acta Phys. Sin. 55 1787 (in Chinese) [张新陆, 王月珠, 史洪峰 2006 55 1787]
[6] Xia Z C, Yang F G, Qiao L 2013 Acta Phys. Sin. 62 114206 (in Chinese) [夏忠朝, 羊富贵, 乔亮 2013 62 114206]
[7] Walsh B M, Barnes N P, Mulugeta Petros, Jirong Yua, Singh U N 2005 Proceedings of SPIE (SPIE, Bellingham, WA 2005) Lidar Remote Sensing for Industry and Environmental Monitoring V 2005, 5653:24-32
[8] Louchev O A, Yoshiharu Urata, Satoshi Wada 2007 Opt. Exp. 15 3940
[9] Gao J Y, Zhang Q L, Sun D L, Liu W P, Yang H J, Wang X F, Yin S T 2013 Acta Phys. Sin. 62 013102 (in Chinese) [高进云, 张庆礼, 孙敦陆, 刘文鹏, 杨华军, 王小飞, 殷绍唐 2013 62 013102]
[10] Shu S J, Yu T, Liu R T, Hou J Y, Hou X, Chen W B 2011 COL 9 091407
[11] Shu S J, Yu T, Zang H G, Liu D, Hou X, Chen W B 2011 Infrared and Laser Engineering 40 1442 (in Chinese) [舒仕江, 余婷, 臧华国, 刘丹, 侯霞, 陈卫标2011红外与激光工程40 1442]
[12] Qiao L, Hou X, Chen W B 2009 Chinese Journal of Lasers 36 1327 (in Chinese) [乔亮, 侯霞, 陈卫标2009中国激光36 1327]
[13] Qiao L, Hou X, Liu Y, Chen W B 2009 Laser Physics 19 1402
[14] Wan S P 2004 Ph. D. Dissertation (Beijing: Tsinghua University) (in Chinese) [万顺平 2004 博士学位论文 (北京: 清华大学)]
[15] Koechner W (translated by Sun W, Jiang Z W, Cheng G X) 2002 Solid-State Laser Engineering (Beijing: Science Press) pp18-22 (in Chinese) [W. 克希耐尔著(孙文, 江泽文, 程国祥译) 2002固体激光工程(北京: 科学出版社)第18–22页]
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