中国物理B ›› 2010, Vol. 19 ›› Issue (8): 84202-084202.doi: 10.1088/1674-1056/19/8/084202

• CLASSICAL AREAS OF PHENOMENOLOGY • 上一篇    下一篇

A novel orthogonally linearly polarized Nd:YVO4 laser

闫兴鹏, 柳强, 陈海龙, 付星, 巩马理, 王东生   

  1. State Key Laboratory of Tribology, Center for Photonics and Electronics, Department of Precision Instruments, Tsinghua University, Beijing 100084, China
  • 收稿日期:2010-01-28 修回日期:2010-03-16 出版日期:2010-08-15 发布日期:2010-08-15
  • 基金资助:
    Project supported by the National Natural Science Foundation of China (Grant Nos. 50721004 and 60978032).

A novel orthogonally linearly polarized Nd:YVO4 laser

Yan Xing-Peng(闫兴鹏), Liu Qiang(柳强), Chen Hai-Long(陈海龙), Fu Xing(付星), Gong Ma-Li(巩马理), and Wang Dong-Sheng(王东生)   

  1. State Key Laboratory of Tribology, Center for Photonics and Electronics, Department of Precision Instruments, Tsinghua University, Beijing 100084, China
  • Received:2010-01-28 Revised:2010-03-16 Online:2010-08-15 Published:2010-08-15
  • Supported by:
    Project supported by the National Natural Science Foundation of China (Grant Nos. 50721004 and 60978032).

摘要: We presented a novel orthogonally linearly polarized Nd:YVO4 laser. Two pieces of a-cut grown-together composite YVO4/Nd:YVO4 crystals were placed in the resonant cavity with the c-axis of the two crystals orthogonally. The polarization and power performance of the orthogonally polarized laser were investigated. A 26.2-W orthogonally linearly polarized laser was obtained. The power ratio between the two orthogonally polarized lasers was varied with the pump power caused by the polarized mode coupling. The longitudinal modes competition and the corresponding variable optical beats were also observed from the orthogonally polarized laser. We also adjusted the crystals with their c-axis parallele to each other, and a 40.7-W linearly polarized TEM00 laser was obtained, and the beam quality factors were M2x=1.37 and M2y=1.25.

Abstract: We presented a novel orthogonally linearly polarized Nd:YVO4 laser. Two pieces of a-cut grown-together composite YVO4/Nd:YVO4 crystals were placed in the resonant cavity with the c-axis of the two crystals orthogonally. The polarization and power performance of the orthogonally polarized laser were investigated. A 26.2-W orthogonally linearly polarized laser was obtained. The power ratio between the two orthogonally polarized lasers was varied with the pump power caused by the polarized mode coupling. The longitudinal modes competition and the corresponding variable optical beats were also observed from the orthogonally polarized laser. We also adjusted the crystals with their c-axis parallele to each other, and a 40.7-W linearly polarized TEM00 laser was obtained, and the beam quality factors were Mx2=1.37 and My2=1.25.

Key words: orthogonally linearly polarized laser, composite Nd:YVO4, optical beat frequency

中图分类号:  (Resonators, cavities, amplifiers, arrays, and rings)

  • 42.60.Da
42.79.Gn (Optical waveguides and couplers) 42.81.Gs (Birefringence, polarization)