Passive Q-switching of Yb bulk lasers by a graphene saturable absorber

被引：19
|
作者：
Loiko, P. A. [1 ,2 ]
Serres, J. M. [1 ]
Mateos, X. [1 ,3 ]
Liu, J. [4 ]
Zhang, H. [5 ,6 ]
Yasukevich, A. S. [2 ]
Yumashev, K. V. [2 ]
Petrov, V. [3 ]
Griebner, U. [3 ]
Aguilo, M. [1 ]
Diaz, F. [1 ]
机构：
[1] Univ Rovira & Virgili, Fis & Cristallog Mat & Nanomat FiCMA FiCNA, Campus Sescelades,C Marcelli Domingo S-N, E-43007 Tarragona, Spain
[2] Belarusian Natl Tech Univ, Ctr Opt Mat & Technol, 65-17 Nezavisimosti Ave, Minsk 220013, BELARUS
[3] Max Born Inst Nonlinear Opt & Short Pulse Spect, 2A Max Born Str, D-12489 Berlin, Germany
[4] Qingdao Univ, Coll Phys, 308 Ning Xia Rd, Qingdao 266071, Peoples R China
[5] Shandong Univ, State Key Lab Crystal Mat, Jinan 250100, Peoples R China
[6] Shandong Univ, Inst Crystal Mat, Jinan 250100, Peoples R China
来源：
APPLIED PHYSICS B-LASERS AND OPTICS | 2016年 / 122卷 / 04期
关键词：
YB-KLU(WO4)(2) LASER; CONTINUOUS-WAVE; OPERATION; CRYSTAL; GDVO4; YVO4; CUT;
D O I：
10.1007/s00340-016-6384-1
中图分类号：
O43 [光学];
学科分类号：
070207 ; 0803 ;
摘要：
Compact Yb:KLu(WO4)(2) and Yb: LuVO4 lasers diode-pumped at 978 nm are passively Q-switched by a single-layer graphene saturable absorber. The Yb:KLu(WO4)(2) laser generated 165 ns/0.49 mu J pulses at 1030 nm with 170 mW average output power and 12 % slope efficiency. With the Yb:LuVO4 laser, 152 ns/0.83 mu J pulses were achieved. The output power reached 300 mW at 1024 nm, and the slope efficiency was 10 %. Laser operation in a plano-plano cavity is achieved with both crystals with thermal lensing playing a key role in their performance. A model describing graphene Q-switched Yb lasers is developed. Our results indicate the potential of graphene for passive Q-switching of similar to 1 mu m bulk lasers.
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页数：8
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