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凝胶基质高效可调谐固态染料激光器

Efficient Ormosil Host Tunable Solid State Dye Laser

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【作者】 张勤远姜中宏胡丽丽

【Author】 Zhang Qinyuan Jiang Zhonghong Hu Lili (Shanghai Institute of Optics and Fine Mechanics, The Chinese Academy of Scineces, Shanghai 201800)

【机构】 中国科学院上海光学精密机械研究所

【摘要】 采用溶胶-凝胶(sol-gel)工艺制成激光染料掺杂有机改性凝胶玻璃(Ormosil)。用室温下调QNdYAG激光器倍频光(532nm)泵浦凝胶基,成功地获得了高转换效率、长寿命、可调谐固态染料激光器的激光输出。其中SiO2-Ormosil基质Pyromethene597染料激光器,激光输出阈值低于10μJ,斜率效率η=61%,550~594nm波长范围内连续可调谐,激光输出能量下降10%所承受的激光脉冲数大于2.5×104个(激光泵浦频率1Hz,能量密度1mJ/cm2)。

【Abstract】 Hydrophobic photostable laser dye molecules were incorporated into organically modified silicate matrices by the sol gel technique. Successful laser oscillation of various pyrromethene dyes doped Ormosil has been achieved. Pumped with a frequency doubled Q switch Nd:YAG laser at 532 nm, the laser wavelength is tunable over 44 nm (550 ̄594 nm). A slope efficiency of 61% was obtained from one of the dye doped Ormosil in the millijoule output energy range. A useful lifetime greater than 2.5×10 4 pulses at a pump repetition rate of 1 Hz and a pump intensity of 1 J/cm 2 was measured, with only a 10% loss in the available output energy.

【关键词】 溶胶-凝胶激光染料固态激光器
【Key words】 sol gellaser dyesolid state laser.
  • 【文献出处】 光学学报 ,ACTA OPTICA SINICA , 编辑部邮箱 ,1999年06期
  • 【分类号】TN248
  • 【被引频次】9
  • 【下载频次】117
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