使用电光周期极化铌酸锂晶体作为激光调Q开关的主动调Q Nd:YVO4激光器。

Actively Q-switched Nd:YVO4 laser using an electro-optic periodically poled lithium niobate crystal as a laser Q-switch.

作者信息

Chen Y H, Huang Y C

机构信息

Department of Electrical Engineering, National Tsing-Hua University, Hsinchu 30043, Taiwan.

出版信息

Opt Lett. 2003 Aug 15;28(16):1460-2. doi: 10.1364/ol.28.001460.

DOI:10.1364/ol.28.001460

PMID:12943091

Abstract

We demonstrate a low-voltage and fast laser Q-switching by using an electro-optic periodically poled lithium niobate (EO PPLN) crystal. The half-wave voltage measured from the EO PPLN crystal was 0.36 V x d (microm)/L (cm), where d is the electrode separation and L is the electrode length. When a 13-mm-long EO PPLN was used as a laser Q switch at 7-kHz switching rate, we measured an approximately 12-ns pulse width and approximately 0.74-kW laser pulses at 1064-nm wavelength from a diode-pumped Nd:YVO4 laser with continuous 1.2-W pump power at 809-nm wavelength.

摘要

我们通过使用电光周期性极化铌酸锂（EO PPLN）晶体展示了一种低电压且快速的激光调Q技术。从EO PPLN晶体测得的半波电压为0.36 V×d（微米）/L（厘米），其中d为电极间距，L为电极长度。当使用一块13毫米长的EO PPLN作为7千赫兹开关速率下的激光调Q开关时，我们从一台809纳米波长连续泵浦功率为1.2瓦的二极管泵浦Nd:YVO4激光器在1064纳米波长处测得脉宽约为12纳秒、激光脉冲功率约为0.74千瓦。