深圳大学学报理工版

报道一种室温下连续运转、结构紧凑、高效率、高功率L型折叠腔掺铥固体激光器.采用793 nm波长半导体二极管激光器对掺杂摩尔分数3%的 Tm:YAP 晶体进行双端泵浦,当泵浦功率120 W时,获得42 W中心波长1 988 nm的连续输出激光.声光调Q运转时,在重复频率10 kHz,泵浦功率120 W时, 平均输出功率达到39.4 W, 脉宽247.5 ns, 单脉冲能量3.94 mJ, 峰值功率16 kW, 斜率效率为35%.

We demonstrate a simple, compact and highly-efficient L-cavity-thulium-doped laser system working at room temperature.The Tm-doped Tm:YAP crystal is pumped by two 793 nm laser diodes at both ends of the crystal. Mole fraction of the Tm3+ in Tm:YAP crystal is 3%. With an incident pump power of 120 W, a maximum continuous-wave output power of 42 W is obtained at 1 988 nm. The average power of 39.4 W, a peak power of 16 kW, a single pulse energy of 3.94 mJ and a pulse width of 247.5 ns are achieved at pulse recurrence frequency of 10 kHz under an incident pump power of 120 W by using an acousto-optic Q-switch, and the slope efficiency is 35%.

引言
1 背景研究
2 实验
3 实验结果
4 结语

图1 G1G2与热焦距的关系<br/>Fig.1 G1G2 versus thermal focal length

图1 G1G2与热焦距的关系
Fig.1 G1G2 versus thermal focal length

图2 实验装置
Fig.2 Experimental setup

图3 掺铥固体激光器连续输出光谱<br/>Fig.3 Spectra of a Tm-doped solid state laser in CW mode

图3 掺铥固体激光器连续输出光谱
Fig.3 Spectra of a Tm-doped solid state laser in CW mode

图4 连续输出泵浦-功率曲线<br/>Fig.4 Input-output power curve for a CW laser

图4 连续输出泵浦-功率曲线
Fig.4 Input-output power curve for a CW laser

图5 掺铥固体激光器脉冲输出光谱<br/>Fig.5 Spectrum of a Tm-doped solid state laser in Q-switched mode

图5 掺铥固体激光器脉冲输出光谱
Fig.5 Spectrum of a Tm-doped solid state laser in Q-switched mode

图6 调Q泵浦功率-平均功率曲线<br/>Fig.6 Average output power versus pump power for a Q-switched laser

图6 调Q泵浦功率-平均功率曲线
Fig.6 Average output power versus pump power for a Q-switched laser

图7 调Q泵浦功率-峰值功率曲线<br/>Fig.7 Peak power-pump power curve for a Q-switched laser

图7 调Q泵浦功率-峰值功率曲线
Fig.7 Peak power-pump power curve for a Q-switched laser

图8 调Q脉冲序列图<br/>Fig.8 Q-switched laser pulse trace

图8 调Q脉冲序列图
Fig.8 Q-switched laser pulse trace

图9 单脉冲波形<br/>Fig.9 Waveform of Q-switched single pulse

图9 单脉冲波形
Fig.9 Waveform of Q-switched single pulse

图10 调Q脉宽-泵浦功率曲线<br/>Fig.10 Pulse-width versus incident pump power for a Q-switched laser

图10 调Q脉宽-泵浦功率曲线
Fig.10 Pulse-width versus incident pump power for a Q-switched laser

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备注

引言

1 背景研究

2 实验

3 实验结果

4 结语

期刊信息

备注

引言

1 背景研究

2 实 验

3 实验结果

4 结 语

期刊信息

2 实验

4 结语