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Graphitic carbon nitride Q-switched Tm:CNNGG laser at 2 micrometer wavelength region
IEEE Photonics Technology Letters ( IF 2.6 ) Pub Date : 2020-02-01 , DOI: 10.1109/lpt.2019.2963327
Kong Gao , Zhongben Pan , Tianli Feng , Guiqiu Li , Jia Zhao , Tao Li , Shengzhi Zhao , Dechun Li , Wenchao Qiao , Hongwei Chu , Houyi Ma , Xiaomei Wang , Ziqun Niu

The Q-switching performance of graphitic carbon nitride (g-C3 N4) based on saturated absorption is demonstrated in 2 micrometer wavelength region for the first time. The g-C3N4 saturable absorbers, processed by thermal oxidation etching, are employed for passive Q-switching in a Tm:CNNGG laser. With a 5 hours long thermal oxidation etched g-C3N4 saturable absorber, the Q-switched Tm:CNNGG laser generates a shortest pulse duration of 132 ns with a repetition frequency of 16 kHz and a peak power of 98.5 W. The experimental results indicate that g-C3N4 is an excellent saturable absorber for passive Q-switching in 2 micrometer wavelength region.

中文翻译:

石墨氮化碳调 Q Tm:CNNGG 激光在 2 微米波长区域

基于饱和吸收的石墨氮化碳(gC 3 N 4)的调Q性能首次在2微米波长范围内得到证明。通过热氧化蚀刻处理的 gC 3 N 4可饱和吸收体用于 Tm:CNNGG 激光器中的被动 Q 开关。使用 5 小时热氧化蚀刻 gC 3 N 4可饱和吸收体,Q 开关 Tm:CNNGG 激光器产生最短脉冲持续时间 132 ns,重复频率为 16 kHz,峰值功率为 98.5 W。实验结果表明那个 gC 3 N 4 是一种出色的可饱和吸收体,用于 2 微米波长范围内的无源 Q 开关。
更新日期:2020-02-01
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