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Proceedings Paper

Multiwavelength picosecond pulse generation with diode-pumped Nd:GAGG and Nd:LGGG lasers
Author(s): A. Agnesi; F. Pirzio; G. Reali; A. Arcangeli; M. Tonelli; Z. Jia; X. Tao; J. Zhang
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Paper Abstract

Laser operation near 1.06 μm by diode-pumped Nd:(LuxGd1-x)3Ga5O12 (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 ≈ 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.

Paper Details

Date Published: 17 May 2010
PDF: 10 pages
Proc. SPIE 7721, Solid State Lasers and Amplifiers IV, and High-Power Lasers, 77210D (17 May 2010); doi: 10.1117/12.853902
Show Author Affiliations
A. Agnesi, INFN, Univ. degli Studi di Pavia (Italy)
F. Pirzio, INFN, Univ. degli Studi di Pavia (Italy)
G. Reali, INFN, Univ. degli Studi di Pavia (Italy)
A. Arcangeli, NEST, Istituto Nanoscienze-CNR (Italy)
Univ. di Pisa (Italy)
M. Tonelli, NEST, Istituto Nanoscienze-CNR (Italy)
Univ. di Pisa (Italy)
Z. Jia, Shandong Univ. (China)
X. Tao, Shandong Univ. (China)
J. Zhang, Shandong Univ. (China)


Published in SPIE Proceedings Vol. 7721:
Solid State Lasers and Amplifiers IV, and High-Power Lasers
Thomas Graf; Gerhard G. Paulus; Jacob I. Mackenzie; Vincent Bagnoud; Catherine Le Blanc; Helena Jelinkov√°, Editor(s)

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