Multiwavelength picosecond pulse generation with diode-pumped Nd:GAGG and Nd:LGGG lasers

A. Agnesi; F. Pirzio; G. Reali; A. Arcangeli; M. Tonelli; Z. Jia; X. Tao; J. Zhang

doi:10.1117/12.853902

17 May 2010 Multiwavelength picosecond pulse generation with diode-pumped Nd:GAGG and Nd:LGGG lasers

A. Agnesi, F. Pirzio, G. Reali, A. Arcangeli, M. Tonelli, Z. Jia, X. Tao, J. Zhang

Proceedings Volume 7721, Solid State Lasers and Amplifiers IV, and High-Power Lasers; 77210D (2010) https://doi.org/10.1117/12.853902
Event: SPIE Photonics Europe, 2010, Brussels, Belgium

Abstract

Laser operation near 1.06 μm by diode-pumped Nd:(Lu_xGd_1-x)₃Ga₅O₁₂ (Nd:LGGG, with x = 0.1) and Gd₃Al_xGa_5-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 ≈ 4-9 ps and output power ≈ 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 ≈ 3.7 and 5.9 ps and output power ≈ 65 mW, with wavelength separation of 1.3 nm around 1062 nm was obtained with Nd:GAGG.

Citation Download Citation

A. Agnesi, F. Pirzio, G. Reali, A. Arcangeli, M. Tonelli, Z. Jia, X. Tao, and J. Zhang "Multiwavelength picosecond pulse generation with diode-pumped Nd:GAGG and Nd:LGGG lasers", Proc. SPIE 7721, Solid State Lasers and Amplifiers IV, and High-Power Lasers, 77210D (17 May 2010); https://doi.org/10.1117/12.853902

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