LD泵浦高功率高斜效率Nd:YVO<sub>4</sub>声光调Q激光器

余锦; 张雪; 刘洋; 樊仲维; 赵天卓; 麻云凤; 张晶; 王培峰

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LD泵浦高功率高斜效率Nd:YVO₄声光调Q激光器

余锦¹,
张雪¹,
刘洋¹,
樊仲维^1,2,
赵天卓¹,
麻云凤¹,
张晶²,
王培峰^3,4

1.
中国科学院光电研究院, 北京1 00080;
2.
北京国科世纪激光技术有限公司, 北京1 00085;
3.
中国科学院长春光学精密机械与物理研究所, 长春 1 30033;
4.
中国科学院研究生院, 北京 1 00039

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出版历程
- 刊出日期: 2011-01-25

Laser diode end pumped accousto-optical Q-switched Nd:YVO４ laser with high power and high slope efficiency

1.
Academy of Opto-Electronics,Chinese Academy of Sciences,Beijing 100080,China;
2.
Beijing GK Laser Technology Co Ltd,Beijing 100085,China;
3.
Changchun Institute of Optics,Fine Mechanics and Physics,Chinese Academy of Sciences,Changchun 130033,China;
4.
Graduate University of Chinese Academy of Sciences,Beijing 100039,China

摘要

摘要: 报道了采用激光二极管(LD)端面泵浦Nd:YVO4双端键合晶体高平均功率高斜效率1 064 nm声光调Q激光器。通过对大功率泵浦情况下激光晶体热透镜效应进行分析和估算，优化了模式匹配及热稳腔结构参数，实现了稳定的高功率高斜效率准连续脉冲激光输出。在泵浦功率46.8 W、最高重复频率50 kHz下，获得最大平均输出功率17.6 W，光-光转换效率为37.6%，斜效率达70.1%，脉冲宽度51.3 ns；在最低重复频率10 kHz下，获得最大单脉冲能量0.91 mJ，峰值功率为46.2 kW，脉冲宽度为19.8 ns。
- 高斜效率 /
- 声光调Q激光器 /
- 双端键合晶体 /
- 端面泵浦 /
- 激光二极管
Abstract: A high average output power， high slope efficiency acousto-optical Q-switched 1 064 nm laser is reported with a laser diode (LD) endpumped Nd:YVO4 double-bonded crystal scheme. With the proper estimation of thermal lensing effects under intense pumping, the mode matching and thermally stable cavity parameters are discussed and optimized, and a stable high-power highslope efficiency output is obtained. At the highest repetition rate of 50 kHz and pump power of 46.8 W, a maximum average output power of 17.6 W is achieved with optical conversion efficiency of 37.6%, slope efficiency of 70.1% and pulse width of 513 ns. At the lowest repetition rate of 10 kHz, a maximum single pulse energy of 0.91 mJ and peak power of 46.2 kW are measured with pulse width of 19.8 ns.
- high slope efficiency /
- acousto-optical q-switched laser /
- double-bonded crystal /
- end pumped /
- laser diode