激光二极管抽运Na,Yb共掺CaF<sub>2</sub>晶体自调Q激光特性的研究

薛迎红; 王清月; 柴路; 苏良碧; 徐军

中国激光, 2005, 32 (10): 1313, 网络出版: 2006-06-01

激光二极管抽运Na,Yb共掺CaF₂晶体自调Q激光特性的研究

Characterization of Laser-Diode-Pumped Self-Q-Switched Laser Operation of a Na, Yb³⁺∶CaF₂ Single Crystal

论文大纲

薛迎红 ^1,*王清月 ¹柴路 ¹苏良碧 ²徐军 ²

作者单位

¹ 天津大学精密仪器与光电子工程学院光电信息技术科学教育部重点实验室(天津大学),天津 300072

² 中国科学院上海光学精密机械研究所,上海 201800

激光技术激光二极管抽运 Yb∶CaF2晶体自调Q激光器调谐输出 laser technique laser diode pumping Na Na Yb∶CaF2 crystal self-Q-switched laser tuning operation

摘要

利用激光二极管(LD)抽运新型Na,Yb共掺CaF2(Na,Yb∶CaF2)晶体,获得了1.05 μm的自调Q激光输出。利用透射率1%的耦合输出镜,得到最低激光输出的抽运阈值功率仅为70 mW。在透射率为2%的输出镜条件下,得到最大输出激光功率为390 mW,此时激光的斜度效率达到20%。实验详细记录了自调Q脉冲的周期和宽度随抽运功率的变化关系,随着抽运功率的增加,自调Q脉冲的周期和宽度呈指数衰减。同时,还采用单棱镜进行光谱调谐实验,获得了1036～1059 nm的自调Q激光调谐输出。

Abstract

A laser-diode-pumped self-Q-switched laser operation with Na and Yb co-doped CaF2 (Na,Yb∶CaF2) system at center wavelength of 1.05 μm is demonstrated. The threshold absorbed pump power is only 70 mW with a transmission output coupler of 1%. A laser slope efficiency of 20% with respect to the absorbed 976 nm pump power is obtained by use of a 2% transmission output coupler. Synchronously, the maximal output laser power of 390 mW is obtained. The period and width of self-Q-switched pulses versus input power characterization are shown. The results show that both period and width of Q-switched pulses decrease exponentially with increasing of input power. The laser wavelength can be tuned between 1036 and 1059 nm.

参考文献

[1] . Hnninger, R. Paschotta, M. Graf et al.. Ultrafast ytterbium-doped bulk lasers and laser amplifiers[J]. Appl. Phys. B, 1999, 69(1): 3-17.

[2] . Druon, F. Balembois, P. Georges et al.. Generation of 90-fs pulses from a mode-locked diode-pumped Yb3+∶Ca4GdO(BO3)3 laser[J]. Opt. Lett., 2000, 25(6): 423-425.

[3] . Brunner, G. J. Spühler, J. Aus der Au et al.. Diode-pumped femtosecond Yb∶KGd(WO4)2 laser with 1.1-W average power[J]. Opt. Lett., 2000, 25(15): 1119-1121.

[4] Yinghong Xue, Qingyue Wang, Zhigang Zhang et al.. Passive mode locking of an Yb∶YAB laser with a low modulation depth SESAM [J]. Chin. Opt. Lett., 2004, 2(8):466～467

[5] Dong Yongjun, Zhou Guoqing, Yang Weiqiao et al.. Research an development of calcium fluoride crystals [J]. Laser & Optoelectronics Progress, 2003, 40(8):43～47
董永军,周国清,杨卫桥等. 氟化钙(CaF2)晶体研发进展[J]. 激光与光电子学进展, 2003, 40(8):43～47

[6] . Petit, J. L. Doualan, P. Camy et al.. CW and tunable laser operation of Yb3+ doped CaF2[J]. Appl. Phys. B, 2004, 78(6): 681-684.

[7] . . Codoping Na+ to modulate the spectroscopy and photoluminescence properties of Yb3+ in CaF2 laser crystal[J]. Opt. Lett., 2005, 30(9): 1003-1005.

薛迎红, 王清月, 柴路, 苏良碧, 徐军. 激光二极管抽运Na,Yb共掺CaF₂晶体自调Q激光特性的研究[J]. 中国激光, 2005, 32(10): 1313. 薛迎红, 王清月, 柴路, 苏良碧, 徐军. Characterization of Laser-Diode-Pumped Self-Q-Switched Laser Operation of a Na, Yb³⁺∶CaF₂ Single Crystal[J]. Chinese Journal of Lasers, 2005, 32(10): 1313.

激光二极管抽运Na,Yb共掺CaF₂晶体自调Q激光特性的研究

关于本站 Cookie 的使用提示

全站搜索

激光二极管抽运Na,Yb共掺CaF2晶体自调Q激光特性的研究

相关论文

相关资讯

关于本站 Cookie 的使用提示

全站搜索

激光二极管抽运Na,Yb共掺CaF₂晶体自调Q激光特性的研究