Abstract
New mixtures of YSGG, GSGG, and GSAG doped with Cr3+ and Nd3+ have been investigated for their spectral and laser properties. These hosts allow a higher concentration of Nd3+ ions than YAG with less suffering from concentration quenching. Changing of the composition allows a variation of the Nd3+ emission cross-section and wavelength of lasing according to the requirements of the laser operation. The efficiency of Cr→Nd energy transfer in mixtured crystals is the same as for GSGG:Cr,Nd crystals. The absorption lines for diode pumping in the region of 800 nm are broader than in Nd:YAG. All mixtures have been operated in a quasi plano-concetric resonator end-pumped by a Ti: Sapphire laser at 809 nm. With a YSGG0.67/GSAG0.33:Nd3+ we achieved an output power of 579 mW at 1062 nm. With an absorbed pump power of 1.2 W and a threshold of 12 mW this corresponds to a slope efficiency of 48%.
© 1992 Optical Society of America
PDF ArticleMore Like This
E. V. Zharikov and I. A. Shcherbakov
LM11 Advanced Solid State Lasers (ASSL) 1992
A. I. Feodorov, G. B. Loutts, M. A. Noginov, I. A. Shcherbakov, V. A. Smirnov, I. T. Sorokina, V. B. Tzvetkov, A. I. Zagumenny, E. V. Zharikov, and D. A. Zubenko
ML9 Advanced Solid State Lasers (ASSL) 1992
E. W. Duczynski, G. Huber, and P. Mitzscherlich
WA3 Advanced Solid State Lasers (ASSL) 1986