Passively Q-switched Nd:YAG/Cr4+:YAG micro laser with high beam quality

Xuesong Huang; Yongling Hui; Menghua Jiang; Hong Lei; Qiang Li

doi:10.1117/12.2247444

19 October 2016 Passively Q-switched Nd:YAG/Cr⁴⁺:YAG micro laser with high beam quality

Xuesong Huang, Yongling Hui, Menghua Jiang, Hong Lei, Qiang Li

Proceedings Volume 10152, High Power Lasers, High Energy Lasers, and Silicon-based Photonic Integration; 101521C (2016) https://doi.org/10.1117/12.2247444
Event: International Symposium on Optoelectronic Technology and Application 2016, 2016, Beijing, China

Abstract

Laser diode end-pumped passively Q-switched Nd:YAG/Cr⁴⁺:YAG micro lasers, with short pulse width, high repetition rate, high peak power and compact structure, have widely applications in laser mico processing, optical communication, laser radar, medical and other fields. But its beam quality is not excellent because of short resonant cavity, thermal effect of crystal, and pump laser. The beam quality is promoted in this paper by compressing the pump beam size and confirming the best position of pump beam focus in crystal. The repletion rate of laser is 20kHz. The output single pulse energy is 18.2μJ and pulse width is 1.23ns. The beam quality of laser is M²=1.18.

Citation Download Citation

Xuesong Huang, Yongling Hui, Menghua Jiang, Hong Lei, and Qiang Li "Passively Q-switched Nd:YAG/Cr⁴⁺:YAG micro laser with high beam quality", Proc. SPIE 10152, High Power Lasers, High Energy Lasers, and Silicon-based Photonic Integration, 101521C (19 October 2016); https://doi.org/10.1117/12.2247444

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