Diode-pumped, continuous-wave operation of a-, b-, and c-cut Er:YAP mid-infrared laser

Cong Quan; Dunlu Sun; Huili Zhang; Jianqiao Luo; Lunzhen Hu; Zhiyuan Han; Kunpeng Dong; Yuwei Chen; Maojie Cheng

doi:10.1117/12.2606860

24 November 2021 Diode-pumped, continuous-wave operation of a-, b-, and c-cut Er:YAP mid-infrared laser

Cong Quan, Dunlu Sun, Huili Zhang, Jianqiao Luo, Lunzhen Hu, Zhiyuan Han, Kunpeng Dong, Yuwei Chen, Maojie Cheng

Proceedings Volume 12060, AOPC 2021: Advanced Laser Technology and Applications; 120601J (2021) https://doi.org/10.1117/12.2606860
Event: Applied Optics and Photonics China 2021, 2021, Beijing, China

Abstract

We demonstrate and compare the absorption spectra, laser performance and thermal lens effect of a-, b-, and c-cut 15 at% Er:YAP crystal in detail. The Er:YAP crystal along a-axis possesses larger absorption coefficient, but the b- axis Er:YAP crystal exhibits better laser performance. A maximum output power of 916 mW is achieved in the b-axis Er:YAP crystal with slope efficiency of 16.0%. As the important factors that affecting the laser performance of solid-state laser, the thermal lens effect of Er:YAP crystal is studied by simulate the temperature distributions and the thermally induced focal lengths. The result indicates that the b-cut Er:YAP crystal has a weaker thermal lens effect due to its high thermal conductivity and low temperature refractive index coefficient. All the result indicate that the b-cut Er:YAP crystal shows a better laser performance, which is a promising candidate for high performance CW mid-infrared laser.

Citation Download Citation

Cong Quan, Dunlu Sun, Huili Zhang, Jianqiao Luo, Lunzhen Hu, Zhiyuan Han, Kunpeng Dong, Yuwei Chen, and Maojie Cheng "Diode-pumped, continuous-wave operation of a-, b-, and c-cut Er:YAP mid-infrared laser", Proc. SPIE 12060, AOPC 2021: Advanced Laser Technology and Applications, 120601J (24 November 2021); https://doi.org/10.1117/12.2606860

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