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Volume 30 Issue 3
Sep.  2013
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The achievement of multi-mirror cavity wavelength 1.44μm Nd：YAG laser

  • 1.

    Beijing Institute of Opto-Electronic Technology, Beijing 100010, China

  • Corresponding author: LIANG Zhi-yuan, lase@rpublic.bta.net.cn ; 
  • Received Date: 2005-04-13
    Accepted Date: 2005-09-08
  • In order to exploit the 1.44μm laser with unique merits in medical application,the multi-mirror technology of(Nd∶YAG) laser is adopt.The mirrors with special coating parameters to different wavelength are designed.By the means of adding the mirrors,the loss of 1.06μm,1.32μm as well as the gain parameter of 1.44μm are increased in resonator.Then the difficult problems of coating requests in two-mirror cavity are solved.The laser oscillation of 1.06μm and 1.32μm has been restricted effectually.Eventually,the transition from 4F(3/2) to 4I(15/2) levels is realized,and the 1.44μm laser is achieved.Theoretic analysis and experimental design show that 1.44μm laser oscillates easier in multi-wave resonator than in two-mirror resonator.
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  • [1]

    SHI P,LI L,GAN A Sh et al.Thermal effect research of Nd3+ doped laser crystals in end-pumped all-solid-state lasers[J].Laser Technology,2004,28(2):177～180(in Chinese).
    [2]

    KRETSCHMANN H M,HEINE F.High-power diode-pumped continuous-wave Nd3+ lasers at wavelengths near 1.44μm[J].Opt Lett,1997,22(7):466～468.
    [3]

    PODLIPENSKY A V,YUMASHEV K V,KULESHOV N V et al.Passive Q-switching of 1.44μm and 1.34μm diode-pumped Nd∶YAG lasers with a V:YAG saturable absorber[J].Appl Phys,2003,B76(3):245～247.
    [4]

    NIKOLAEV D A,KLIMOV I V,SHCHERBAKOV I A et al.Nd:YAG lasers operating at different wavelengths through 4F3/2-4I13/2 transitions[J].Laser Physics,2000,10(2):430～432.
    [5]

    KUBECEK V,COUDERC V.Laser diode pumped Nd:YAG laser operating at an eye-safe wavelength of 1.443μm[J].Electron Lett,1994,30(25):2139～2140.
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  • 1. 

    沈阳化工大学材料科学与工程学院 沈阳 110142

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The achievement of multi-mirror cavity wavelength 1.44μm Nd：YAG laser

    Corresponding author: LIANG Zhi-yuan, lase@rpublic.bta.net.cn; 
  • 1. Beijing Institute of Opto-Electronic Technology, Beijing 100010, China
  • Received Date: 2005-04-13
  • Accepted Date: 2005-09-08
  • Available Online: 2006-05-25

Abstract: In order to exploit the 1.44μm laser with unique merits in medical application,the multi-mirror technology of(Nd∶YAG) laser is adopt.The mirrors with special coating parameters to different wavelength are designed.By the means of adding the mirrors,the loss of 1.06μm,1.32μm as well as the gain parameter of 1.44μm are increased in resonator.Then the difficult problems of coating requests in two-mirror cavity are solved.The laser oscillation of 1.06μm and 1.32μm has been restricted effectually.Eventually,the transition from 4F(3/2) to 4I(15/2) levels is realized,and the 1.44μm laser is achieved.Theoretic analysis and experimental design show that 1.44μm laser oscillates easier in multi-wave resonator than in two-mirror resonator.

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