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
收藏
页码：337 / 344
页数：8
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