An 885-nm Direct Pumped Nd：CNGG 1061 nm Q-Switched Laser

The 885nm direct pumping method, directly into the ^4F3/2 emitting level of Nd^3＋ ion, is used to a Nd：CNGG crystal to product passive Q-switched 1061 nm laser pulses, for the first time to the best of our knowledge. A maximum average output power of 1.16 W for 1061 nm Q-switched pulses and a repeti...

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Bibliographic Details
Published in:Chinese physics letters 2014-07, Vol.31 (7), p.117-120
Main Author: 李奇楠 张韬 冯宝华 张治国 张怀金 王继杨
Format: Article
Language:English
Subjects:
Crystals
Emittance
Lasers
Pulse width
Pumping
Reduction
Repetition
开关脉冲
泵浦
激光脉冲
纳米
脉冲宽度
被动Q开关
输出功率
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Summary:The 885nm direct pumping method, directly into the ^4F3/2 emitting level of Nd^3＋ ion, is used to a Nd：CNGG crystal to product passive Q-switched 1061 nm laser pulses, for the first time to the best of our knowledge. A maximum average output power of 1.16 W for 1061 nm Q-switched pulses and a repetition rate of 12.54 kHz are obtained. The pulse width is measured to be 24ns and the peak power is 3.843kW. A high-quality fundamental transverse mode can be observed owing to the reduction of the thermal effect for Nd：CNGG crystal by 885 nm direct pumping.
ISSN:0256-307X
1741-3540
DOI:10.1088/0256-307X/31/7/074209