A novel La3Ga5SiO14 electro-optic Q-switched Nd:LiYF (Nd:YLF) laser with a Cassegrain unstable cavity

被引:9
作者
Li, YC [1 ]
Wang, QP
Zhang, SJ
Zhang, XY
Liu, ZJ
Jiang, ZF
Liu, ZJ
Li, ST
机构
[1] Shandong Univ, Sch Informat Sci & Engn, Jinan 250100, Peoples R China
[2] Shandong Univ, State Key Lab Crystal Mat, Jinan 250100, Peoples R China
基金
中国国家自然科学基金; 高等学校博士学科点专项科研基金;
关键词
Nd : LiYF (Nd : YLF); Brewster cut; La3Ga5SiO14; unstable cavity; electro-optic Q-switch;
D O I
10.1016/j.optcom.2004.09.048
中图分类号
O43 [光学];
学科分类号
070207 ; 0803 ;
摘要
A Nd:LiYF (Nd:YLF) laser which is actively electro-optic Q-switched with a La3Ga5SiO14 single crystal was designed. Each end of the Nd:YLF rod was cut at Brewster's angle, which ensures operation at 1.053 mum and saves the need of a polarizor. The dynamic to static rate, the insertion loss and the optical damage threshold of LGS Q-switch is 76%, 2% and 950 MW/cm(2), respectively. Compared with KD2PO4, LGS is lack of water-solubility in air. When the pump energy is 121 J, the energy of single pulse output is 275 mJ with the repetition rate of 3 Hz and the beam divergence angle of 0.7 mrad. The mode of operation, the input-output characteristics and linear polarization ratio of this laser are also discussed. (C) 2004 Elsevier B.V. All rights reserved.
引用
收藏
页码:333 / 338
页数:6
相关论文
共 17 条
[1]  
Born M., 1964, Principle of Optics
[2]   THEORY OF THE OPTIMALLY COUPLED Q-SWITCHED LASER [J].
DEGNAN, JJ .
IEEE JOURNAL OF QUANTUM ELECTRONICS, 1989, 25 (02) :214-220
[3]  
FANG Z, 1996, CHIN OPT LETT, V16, P1400
[4]   200 MJ UNSTABLE RESONATOR ND-YAG OSCILLATOR [J].
HERBST, RL ;
KOMINE, H ;
BYER, RL .
OPTICS COMMUNICATIONS, 1977, 21 (01) :5-7
[5]  
Kaminsky A.A., 1982, REP USSR ACAD SCI, V264, P93
[6]  
Koechner W., 1999, SOLID STATE LASER EN
[7]   Growth, properties and application as an electrooptic Q-switch of langasite crystal [J].
Kong, HK ;
Wang, JY ;
Zhang, HJ ;
Yin, X ;
Zhang, SJ ;
Liu, YG ;
Cheng, XF ;
Gao, L ;
Hu, XB ;
Jiang, MH .
JOURNAL OF CRYSTAL GROWTH, 2003, 254 (3-4) :360-367
[8]   MODE-LOCKING AND Q-SWITCHING OF A DIODE-LASER PUMPED NEODYMIUM-DOPED YTTRIUM LITHIUM-FLUORIDE LASER [J].
MAKER, GT ;
FERGUSON, AI .
APPLIED PHYSICS LETTERS, 1989, 54 (05) :403-405
[9]   PULSED GAIN AND THERMAL LENSING OF ND - LIYF4 [J].
MURRAY, JE .
IEEE JOURNAL OF QUANTUM ELECTRONICS, 1983, 19 (04) :488-491
[10]   THERMAL BEAM DISTORTIONS IN END-PUMPED ND-YAG, ND-GSGG, AND ND-YLF RODS [J].
PFISTNER, C ;
WEBER, R ;
WEBER, HP ;
MERAZZI, S ;
GRUBER, R .
IEEE JOURNAL OF QUANTUM ELECTRONICS, 1994, 30 (07) :1605-1615