标题：Multiwavelength picosecond pulse generation with diode-pumped Nd:GAGG and Nd:LGGG lasers
作者：Agnesi, A.; Pirzio, F.; Reali, G.; Arcangeli, A.; Tonelli, M.; Jia, Z.; Tao, X.; Zhang, J.
作者机构：[Agnesi, A.; Pirzio, F.; Reali, G.] Univ Pavia, INFN Sez, Pavia & Elect Dept, Via Ferrata 1, I-27100 Pavia, Italy.; [Arcangeli, A.; Tonelli, M.] Uni 更多
会议名称：Conference on Solid State Lasers and Amplifiers III and High-Power Lasers
会议日期：APR 12-16, 2010
来源：SOLID STATE LASERS AND AMPLIFIERS IV AND HIGH-POWER LASERS
关键词：laser materials; diode-pumped lasers; optical pulse generation
摘要：Laser operation near 1.06 mu m by diode-pumped Nd:(LuxGd1-x)(3)Ga5O12 (Nd:LGGG, with x = 0.1) and Gd3AlxGa5-xO12 (GAGG, with x = 1) disordered crystals has been investigated. Cw oscillation with a slope efficiency as high as 61% and 230 mW output power was achieved with 400 mW absorbed power from a 1-W laser diode in Nd:LGGG. Under the same pumping conditions cw oscillation with a slope efficiency as high as 55% and 255 mW output power was achieved with 500 mW absorbed power in Nd:GAGG. Stable passive mode-locking with single-or multi-wavelength spectrum was obtained with a semiconductor saturable absorber mirror (SAM) and a single-prism, dispersion-compensated cavity with both the samples. Fourier-limited pulses with duration approximate to 4 - 9 ps and output power approximate to 40 mW were generated at three well-defined laser transitions in the range 1062-1067 nm with ND:GLGG. Two-color mode-locking regime well described by Fourier-limited synchronized pulses with duration approximate to 3.7 and 5.9 ps and output power approximate to 65 mW, with wavelength separation of 1.3 nm around 1062 nm was obtained with Nd:GAGG.