We present an EO Q-switched Tm:YAP laser constructed with a periodically poled Mg-doped congruent lithium niobate (PPMgCLN) Bragg modulator. A 2-mm-thick PPMgCLN modulator was adopted, and the internal stress generated in the electric poling process was released by annealing. The peak stress-induced refractive index variance for e-wave was deduced to be 2.29 × 10−5 at 1064 nm. When the absorbed pump power and repetition rate were 13.4 W and 1 kHz, respectively, the laser had a Q-switched pulse energy of 2 mJ, a pulse duration of 60 ns, and a peak power of 33.3 kW. By varying the reflection of the output coupler, output wavelengths of between approximately 1985 and approximately 1940 nm can be selected, making this laser a potential tool for pumping mid-IR sources and biomedical applications.

中文翻译：

---

使用电光周期极化铌酸锂布拉格调制器构建的主动调 Q Tm:YAP 激光器

我们提出了一种 EO Q 开关 Tm:YAP 激光器，该激光器由周期性极化的 Mg 掺杂全等铌酸锂 (PPMgCLN) 布拉格调制器构成。采用2mm厚的PPMgCLN调制器，通过退火释放电极化过程中产生的内应力。在 1064 nm 处推导出 e 波的峰值应力诱导折射率方差为 2.29 × 10-5。当吸收泵浦功率和重复频率分别为13.4 W和1 kHz时，激光器的调Q脉冲能量为2 mJ，脉冲持续时间为60 ns，峰值功率为33.3 kW。通过改变输出耦合器的反射，可以选择大约 1985 和大约 1940 nm 之间的输出波长，使该激光器成为泵浦中红外源和生物医学应用的潜在工具。