中国物理B ›› 2016, Vol. 25 ›› Issue (2): 24207-024207.doi: 10.1088/1674-1056/25/2/024207

• ELECTROMAGNETISM, OPTICS, ACOUSTICS, HEAT TRANSFER, CLASSICAL MECHANICS, AND FLUID DYNAMICS • 上一篇    下一篇

Design of LD in-band direct-pumping side surface polished micro-rod Nd:YVO4 laser

Wen-Qi Zhang(张文启), Fei Wang(王飞), Qiang Liu(柳强), Ma-Li Gong(巩马理)   

  1. State Key Laboratory of Tribology, Center for Photonics and Electronics, Department of Precision Instruments, Tsinghua University, Beijing 100084, China
  • 收稿日期:2015-04-08 修回日期:2015-08-11 出版日期:2016-02-05 发布日期:2016-02-05
  • 通讯作者: Ma-Li Gong E-mail:gongml@mail.tsinghua.edu.cn

Design of LD in-band direct-pumping side surface polished micro-rod Nd:YVO4 laser

Wen-Qi Zhang(张文启), Fei Wang(王飞), Qiang Liu(柳强), Ma-Li Gong(巩马理)   

  1. State Key Laboratory of Tribology, Center for Photonics and Electronics, Department of Precision Instruments, Tsinghua University, Beijing 100084, China
  • Received:2015-04-08 Revised:2015-08-11 Online:2016-02-05 Published:2016-02-05
  • Contact: Ma-Li Gong E-mail:gongml@mail.tsinghua.edu.cn

摘要: To diminish the thermal load, two ways, that is, in-band direct pumping and micro-rod crystal, could be adopted at the same time. The efficiency of LD in-band direct-pumping side surface polished micro-rod Nd:YVO4 laser is numerically analyzed. By optimizing parameters such as crystal length, laser mode radius, pump beam radius, doping concentration and crystal cross-section size, the overall efficiency can reach over 50%. It is found that with micro-rod crystal implemented in the laser oscillator, high overall efficiency LD in-band direct-pumping Nd:YVO4 laser could be realized. High efficiency combined with low thermal load makes this laser an outstanding scheme for building high-power Nd:YVO4 lasers.

关键词: diode-pumped lasers, design of specific laser systems, efficiency

Abstract: To diminish the thermal load, two ways, that is, in-band direct pumping and micro-rod crystal, could be adopted at the same time. The efficiency of LD in-band direct-pumping side surface polished micro-rod Nd:YVO4 laser is numerically analyzed. By optimizing parameters such as crystal length, laser mode radius, pump beam radius, doping concentration and crystal cross-section size, the overall efficiency can reach over 50%. It is found that with micro-rod crystal implemented in the laser oscillator, high overall efficiency LD in-band direct-pumping Nd:YVO4 laser could be realized. High efficiency combined with low thermal load makes this laser an outstanding scheme for building high-power Nd:YVO4 lasers.

Key words: diode-pumped lasers, design of specific laser systems, efficiency

中图分类号:  (Diode-pumped lasers)

  • 42.55.Xi
42.60.By (Design of specific laser systems) 42.60.Lh (Efficiency, stability, gain, and other operational parameters)