Advanced Search

ISSN1001-3806 CN51-1125/TN Map

Volume 30 Issue 4
Sep.  2013
Article Contents
Turn off MathJax

Citation:

Determining the thermal lens focus of LD end-pumped Nd:GdVO4 solid-state laser with CCD detecting method

  • Corresponding author: ZHAO Sheng-zhi, shengzhi_zhao@sdu.edu.cn
  • Received Date: 2005-05-31
    Accepted Date: 2005-06-23
  • In order to study the thermal effect of Nd:GdVO4 crystal in LD end-pumped solid-state laser,a simply method to measure the thermal focal length with stable resonator is presented.By measuring M2 factor and the waist of output beam with CCD beam analyzer,the beam waist of the TEMOO mode can be deduced according to the law of multi-mode Gaussian beam propagation.Based on the ABCD matrix theory of stable resonator,the thermal focal length of the active medium is easily obtained.The experiment shows that the higher the pump power is,the smaller the thermal focal length is,and the worse the thermal effect influent the output beam quality.The thermal focal length of a LD end-pumped Nd:GdVO4 laser is measured and the experimental results agree with the theoretical predication.
  • 加载中
  • [1]

    NEUENSCHWANDER B,WEBER R,WEBER H P.Determination of the thermal lens in solid-state lasers with stable cavities[J].IEEE J Q E,1995,31(6):1082~1087.
    [2]

    BROWN D C.Nolinear thermal distortion in YAG rod amplifiers[J].IEEE J Q E,1998,34(12):2383~2392.
    [3]

    YU J,TAN H M,QIAN L Sh et al.Theoretical study on thermal beam focusing in longitudinally-pumped solid-state laser rods[J].High Power Laser Particle Beams,2000,12(1):27~31(in Chinese).
    [4]

    WANG D Sh,LI G,CHEN M et al.Measurement of thermal focallength of LD end-pumped crystal under stable-cavity-condition[J].Laser Technology,2003,27(6):534~537(in Chinese).
    [5]

    ZHAO H M,ZHAO Sh Zh,CHEN L.Thermal focal length and optimal pumping position of Nd:NaY(WO4)2 crystal[J].Infrared and Laser Engineering,2004,33(1):18~20 (in Chinese).
    [6]

    LÜ B D.Laser optics[M].3rd ed,Beijing:Higher Education Press,2003.75~83(in Chinese).
    [7]

    LÜ B D.Laser optics[M].3rd ed,Beijing:Higher Education Press,2003.343~345(in Chinese).
    [8]

    ZHENG J A,ZHAO Sh Zh,WANG Q P et al.Influence of thermal effect on the optimized design of LD end-pumped solid-state laser[J].Acta Photonica Sinica,2000,29(12):1121~1126(in Chinese).
    [9]

    RIMINGTON N W,SCHIEFFER S L,SCHROEDER W A.Thermallens shaping in brewster gain media:a high-power,diode-pumped Nd:GdVO4 laser[J].Optical Express,2004,12(7):1426~1436.
    [10]

    INNOCENZI M E,YURA H T,FINCHER C L et al.Thermal modeling of continuous-wave end-pumped solid-state laser[J].A P L,1990,56(19):1831~1833.
  • 加载中
通讯作者: 陈斌, bchen63@163.com
  • 1. 

    沈阳化工大学材料科学与工程学院 沈阳 110142

  1. 本站搜索
  2. 百度学术搜索
  3. 万方数据库搜索
  4. CNKI搜索

Article views(3407) PDF downloads(537) Cited by()

Proportional views

Determining the thermal lens focus of LD end-pumped Nd:GdVO4 solid-state laser with CCD detecting method

    Corresponding author: ZHAO Sheng-zhi, shengzhi_zhao@sdu.edu.cn
  • 1. School of Information Science and Engineering, Shandong University, Ji'nan 250100, China

Abstract: In order to study the thermal effect of Nd:GdVO4 crystal in LD end-pumped solid-state laser,a simply method to measure the thermal focal length with stable resonator is presented.By measuring M2 factor and the waist of output beam with CCD beam analyzer,the beam waist of the TEMOO mode can be deduced according to the law of multi-mode Gaussian beam propagation.Based on the ABCD matrix theory of stable resonator,the thermal focal length of the active medium is easily obtained.The experiment shows that the higher the pump power is,the smaller the thermal focal length is,and the worse the thermal effect influent the output beam quality.The thermal focal length of a LD end-pumped Nd:GdVO4 laser is measured and the experimental results agree with the theoretical predication.

Reference (10)

Catalog

    /

    DownLoad:  Full-Size Img  PowerPoint
    Return
    Return