Laser diode-end-pumped Nd：YAG/LBO laser operating at 946 nm/473 nm

Mayilamu Musideke; Yao Jianquan; Wang Peng

The properties of Nd:YAG 946 nm and 473 nm laser were studied. By using Nd:YAG composite as laser gain medium, 11 W continuous-wave(CW) laser output at 946 nm was obtained under the incident pump power of 31.8 W, corresponding optical efficiency and slope efficiency were 34.6% and 35.4%, respectively. The M2 factor was 7.53 and the power stability was better than 0.4% with 0.5 h. After intra-cavity frequency-doubled by an LBO crystal which was cut for critical type Ⅰ phase matching, 0.887 W CW output power at 473 nm was obtained, corresponding to an optical efficiency of 5.87%. Experimental results prove that the end pumped CW laser has important practical value.

1. Institute of Laser & Otpoelectronics,College of Precision and Opto-Electronic Engineering,Tianjin University,Tianjin 300072,China;

2. Key Laboratory of Opto-Electronics Information and Technical Science (Ministry of Education),Tianjin University,Tianjin 300072 China

Received Date: 2013-03-05

Rev Recd Date: 2013-04-11

Publish Date: 2013-11-25

Key words:

Abstract: The properties of Nd:YAG 946 nm and 473 nm laser were studied. By using Nd:YAG composite as laser gain medium, 11 W continuous-wave(CW) laser output at 946 nm was obtained under the incident pump power of 31.8 W, corresponding optical efficiency and slope efficiency were 34.6% and 35.4%, respectively. The M2 factor was 7.53 and the power stability was better than 0.4% with 0.5 h. After intra-cavity frequency-doubled by an LBO crystal which was cut for critical type Ⅰ phase matching, 0.887 W CW output power at 473 nm was obtained, corresponding to an optical efficiency of 5.87%. Experimental results prove that the end pumped CW laser has important practical value.

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[1]	Li Yongliang, Zeng Youhong, Jiang Huilin, et al. LD-pumped Nd:YVO4 all solid-state RTP type Ⅱ matched 543 nm laser[J]. Infrared and Laser Engineering, 2010, 39(6): 1023-1025. (in Chinese)李永亮, 曾右洪, 姜会林, 等. LD泵浦Nd:YVO4全国态RTP Ⅱ 类匹配 543 nm激光器[J]. 红外与激光工程, 2010, 39(6): 1023-1025.
[2]
[3]
[4]	Li Long, Liu Xiaojian, Nie Jianping, et al. Thermal effect of intra-cavity frequency doubling KTP crystal in all-solid-state multi-mode green laser[J]. Infrared and Laser Engineering, 2011, 40(5): 830-834. (in Chinese)李隆, 刘小建, 聂建萍, 等. 全固态多模绿光激光器腔内倍频KTP晶体热效应[J]. 红外与激光工程, 2011, 40(5): 830-834.
[5]	Fan T Y, Byer R L. Modeling and CW operation of a quasi-three-level 946 nm Nd:YAG laser[J]. IEEE J Quantum Electron, 1987, 23(5): 605-612.
[6]
[7]	Risk W P, Length W, Room-temperature, continuous-wave, 946-nm Nd:YAG laser pumped by laser-diode arrays and intracavity frequency doubling to 473 nm[J]. Opt Lett, 1987, 12: 993.
[8]
[9]	Czeranowsky C, Heumann E, Huber G. All-solid-state continuous-wave frequency-doubled Nd:YAG-BiBO laser with 2.8-W output power at 473 nm[J]. Opt Lett, 2003, 28(6): 432-434.
[10]
[11]	Kellner T, Heine F, Huber G. Efficient laser performance of Nd:YAG at 946 nm and intracavity frequency doubling with LiJO3, -BaB2O4, and LiB3O5[J]. Appl Phys B, 1997, 65: 789-792.
[12]
[13]
[14]	Czeranowsky C, Heumann E, Huber G. All-solid-state continuous-wave frequency-doubled Nd:YAG-BiBO laser with 2.8-W output power at 473nm[J]. Opt Lett, 2003, 28(6): 432-434.
[15]
[16]	Zelle P, Peuser P. Efficient, multiwatt, continuous-wave laser operation on the 4F3/2-4I9/2 transitions of Nd:YVO4 and Nd:YAG[J]. Opt Lett, 2000, 25(1): 34-37.
[17]	Zhou R, Zhang T L, Li E B, et al. 8.3 W diode-end-pumped continuous-wave Nd:YAG laser operating at 946-nm[J]. Opt Express, 2005, 13(25): 10115-10119.
[18]
[19]	Zhou R, Li E B, Li H F, et al. Continuous-wave, 15.2-W diode-end-pumped Nd:YAG laser operating at 946 nm[J]. Opt Lett, 2006, 31(12): 1869-1871.
[20]
[21]	Li Yimin, Tan Huiming, Fu Xihong, et al. LD pumped intracavity frequency doubling 473nm Nd:YAG/LBO laser with low noise operation[J]. Optics and Precision Engineering, 2008, 16(1): 11-15. (in Chinese)李义民, 檀慧明, 付喜宏, 等. LD泵浦腔内倍频Nd:YAG/LBO蓝光473nm激光器的低噪声运转[J]. 光学精密工程, 2008, 16(1): 11-15.
[22]
[23]	Wang Hongmei. Property of LD pumped Nd:YAG PPLT extra-cavity frequency-doubling 473 nm laser[J]. Infrared and Laser Engineering, 2009, 38(5): 873-876. (in Chinese)王红梅. 二极管泵浦Nd:YAG PPLT腔外倍频473 nm激光特性[J]. 红外与激光工程, 2009, 38(5): 873-876.
[24]
[25]
[26]	Wang Yaoting, Liu Jianli, Liu Qin, et al. Stable continuous-wave single-frequency Nd:YAG blue laser at 473 nm considering the influence of the energy-transfer upconversion[J]. Optics Express, 2010, 18(12): 12044-12051.
[27]	Zhang Baigang, Yao Jianquan, Xu Degang, et al. A new method to measure the ultrashort thermal focal length of high-power solid-state laser, high-power lasers and applications Ⅱ[C]//SPIE, 2002, 4914: 455-458.

Laser diode-end-pumped Nd：YAG/LBO laser operating at 946 nm/473 nm

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