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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Published inChinese physics letters Vol. 31; no. 7; pp. 117 - 120
Main Author 李奇楠 张韬 冯宝华 张治国 张怀金 王继杨
Format Journal Article
LanguageEnglish
Published 01.07.2014
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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ISSN0256-307X
1741-3540
DOI10.1088/0256-307X/31/7/074209

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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.
Bibliography:11-1959/O4
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.
LI Qi-Nan , ZHANG Tao , FENG Bao-Hua , ZHANG Zhi-Guo , ZHANG Huai-Jin , WANG Ji-Yang（ 1 Department of Physics, College of Science, Qiqihar University, Qiqihar 161006 ; 2Laboratory of Optical Physics, Institute of Physics, Chinese Academy of Sciences, Beijing 100190 ;3 State Key Laboratory of Crystal Materials and Institute of Crystal Materials, Shandong University, Jinan 250100）
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ISSN:0256-307X
1741-3540
DOI:10.1088/0256-307X/31/7/074209