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Journal of Inorganic Materials

Journal of Inorganic Materials

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Modified CZ. Growth and the Properties of Nd3+:KGd(WO4)2 Crystal

TU Chao-Yang1; LI Jian-Fu1; YOU Zheng-Yu1; ZHU Zhao-Jie1; WU Bai-Chang1; LUO TaO2; LAI Hong-Zhang2   

  1. 1.Fujian Institute of Research on the Structure of Matter; Chinese Academy of Sciences; Fuzhou 350002; China; 2. Shu Guang Limited Liability Company of Photoelectron; Yangzhou 225000; China
  • Received:2003-04-28 Revised:2003-06-13 Published:2004-05-20 Online:2004-05-20

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Abstract: The crystal of Nd3+:KGd(WO4)2 with the size of φ20mm×35mm was grown by using the modified CZ.
method. The absorption and emission spectra in the directions of a, b and c axes were measured, the result shows that the intensity of absorption
and emission spectra in the direction of a axis is the strongest. Therefore, the direction of a axis is the most suitable for laser experiment. A laser
output of 125.5 mJ at 1.067μm was obtained when a laser crystal with the size of φ3.5mm×26mm was pumped by a Xe lamp. Compared with the
YAG:Nd3+ laser crystal, which was performed the same laser experiment at the same conditions, Nd3+:KGd(WO4)2 has the advantages of lower
laser threshold and higher efficiency as well as the polarized laser output. Therefore, it is expected that Nd3+:KGd(WO4)2 crystal will be very
useful in the miniature laser.

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