为探索和评价新型激光晶体掺钛氟磷酸银Nd：Sr5（PO4）3F（Nd：SFAP）在制作激光器方面的应用，对其生长、结构、光谱与激光特性及一些物理性能进行了系统研究．采用Czochralski法成功地生长出单晶；用先进的设备对所生长之晶体进行了有关测量，并进行了以激光二极管为泵浦源、该晶体为工作物质的激光实验．结果表明：晶体生长中Nd的有效分凝系数为0.52；理想的泵浦光应是806um的π偏振光，荧光寿命为175μs；泵浦阈值15mW，斜效率为31．8％研究结论为：Nd：SFAP晶体是制作小型LD泵浦激光器的理想材料，但用它制作较大功率激光器是不合适的
The growth, structure, spectra, laser preperties and some physical properties of a new laser crystal Nd:Sr5(PO4)3F (Nd:SFAP) were
studied in order to search and evaluate the applications of the crystal to laser. The Nd:SFAP single crystals were successfully grown by Czochralski method and the laser experiment of the crystal crystal pumped by laser diode
(LD) was demonstrated. The properties of as-grown crystal were measured by advanced equipments. Experimental results showed that Effective distribution
coeffcient Keff of Nd was 0.52. π polarization light with wavelength of 806nm was the best pumping light. The fluorescence lifetime of 2 at % Nd:SFAP
crystal was 175μs. The pumping threshold of Nd:SFAP laser was 15mW and its slope efficiency was 31.8%. From the investigation we can draw a conchusion:
the Nd:SFAP crystal is an ideal laser mateiral for lower power lasers, but it isn’t suited to be applied to higher power lasers.
参考文献
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| [2] | Steinbruegg K B, et al. Appl. Opt. 1972, 11 (5): 999--1012 2 Loutts George, et al. In: Abstracts, MRS Fall Meeting, Boston, Dec. 1993. Mat. Res. Soc. Paper, R4.2 3 Zhao S, et al. Optics & |
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