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Volume 28 Issue 2
Sep.  2013
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Citation:
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Periodically poled second harmonic green light generation in near-stoichiometric MgO-doped LiNbO3 crystal

  • 1.

    Photonics Research Center, College of Physical Science, Nankai University, Tianjin 300071, China;

  • 2.

    TEDA Applied Physics College, Nankai University, Tianjin 300060, China

  • Received Date: 2003-05-23
    Accepted Date: 2003-11-19
  • LiNbO3 crystal with different MgO doped concentration were processed by vapor transport equilibration.The processed crystals doped 2%(mole fraction) MgO increased the photoreactive damage resistance by at least 4 orders of magnitude compared with congruent crystal.By applying an external electric field of 4.5kV/mm,we obtained a periodically poled domain structure with a 6.8μm period and 1.0mm thickness in the doped MgO2%(mole fraction) near-stoichioment LiNbO3 crystal.A Q-switched Nd:YAG laser was used as the fundamental beam source at 1.064μm.When input power was 230mW,the green SHG at 0.532μm was obtained with 1.22% conversion efficiency.
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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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Periodically poled second harmonic green light generation in near-stoichiometric MgO-doped LiNbO3 crystal

  • 1. Photonics Research Center, College of Physical Science, Nankai University, Tianjin 300071, China;
  • 2. TEDA Applied Physics College, Nankai University, Tianjin 300060, China
  • Received Date: 2003-05-23
  • Accepted Date: 2003-11-19
  • Available Online: 2004-03-25

Abstract: LiNbO3 crystal with different MgO doped concentration were processed by vapor transport equilibration.The processed crystals doped 2%(mole fraction) MgO increased the photoreactive damage resistance by at least 4 orders of magnitude compared with congruent crystal.By applying an external electric field of 4.5kV/mm,we obtained a periodically poled domain structure with a 6.8μm period and 1.0mm thickness in the doped MgO2%(mole fraction) near-stoichioment LiNbO3 crystal.A Q-switched Nd:YAG laser was used as the fundamental beam source at 1.064μm.When input power was 230mW,the green SHG at 0.532μm was obtained with 1.22% conversion efficiency.

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