High average power diode end-pumped composite Nd:YAG laser passively Q-switched by Cr4+:YAG saturable absorber

被引:81
作者
Pavel, N [1 ]
Saikawa, J [1 ]
Kurimura, S [1 ]
Taira, T [1 ]
机构
[1] Inst Mol Sci, Laser Res Ctr, Okazaki, Aichi 4448585, Japan
来源
JAPANESE JOURNAL OF APPLIED PHYSICS PART 1-REGULAR PAPERS BRIEF COMMUNICATIONS & REVIEW PAPERS | 2001年 / 40卷 / 3A期
关键词
Nd-doped laser; diode-pumped; passive Q-switch; Cr4+: YAG;
D O I
10.1143/JJAP.40.1253
中图分类号
O59 [应用物理学];
学科分类号
摘要
We report a diode end-pumped composite Nd:YAG laser, passively Q-switched by a Cr4+:YAG crystal as saturable absorber. The maximum peak power exceeded 16 kW for an average power of 2.6 W, laser pulses of 16.8-ns duration and 272-muJ energy. The maximum average power was 4.2 W with the laser operating at 24.0 kHz repetition frequency and 47.8-ns pulses duration (3.7 kW peak power) at a beam quality of M-2 = 1.34. A rate-equation model that considers both the active medium and the saturable absorber dynamics was developed. A good agreement between the experiments and modeling resulted.
引用
收藏
页码:1253 / 1259
页数:7
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