High-energy, high-brightness Q-switched TM3+-doped fiber laser using an electro-optic modulator

被引：106

作者：

El-Sherif, AF ^{[1
]}

King, TA ^{[1
]}

机构：

[1] Univ Manchester, Dept Phys & Astron, Laser Photon Res Grp, Manchester M13 9PL, Lancs, England

来源：

OPTICS COMMUNICATIONS | 2003年 / 218卷 / 4-6期

基金：

英国工程与自然科学研究理事会;

关键词：

high power fiber laser; Q-switching; electro-optic modulator (EOM); thulium;

D O I：

10.1016/S0030-4018(03)01200-8

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

Q-switched operation of a 2 mum Tm3+-doped silica fiber laser using an electro-optic modulation (EOM) is described for the first time. A larger multimode core of 17 mum diameter is used to increase the laser gain volume and achieve higher pulse energy. Experimentally this laser produced pulses with a peak power of similar to3.3 kW at a low repetition rate of 70 Hz and a pulse energy up to 2.3 mJ, limited by excited state absorption with only slightly compromized spatial-mode quality (M-2 similar to 1.5). This approach using an EOM offers significant scope for extending the range of single-mode output powers and energies that are achievable from fiber lasers and amplifier systems. (C) 2003 Elsevier Science B.V. All rights reserved.

引用

页码：337 / 344

页数：8