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Proceedings Paper

Diode-pumped Nd:LNA as a pulsed amplifier
Author(s): Alain Jolly; H. Coic; Ph. Maruenda; P. Estraillier; Claude Rouyer; Rene Bailly-Salins; Jacques Luce
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Paper Abstract

We describe the performances we obtained in a variety of high power diode pumped Nd3+:LNA heads. Two pumping structures are analyzed, which were designed for cylindrical and square cross section rods. The cylindrical rods are tested with 1 joule pumping energy during 200 microsecond(s) . They provide high regenerative gains, in the range 107 to 108 at 20 mJ output energy, with less than 20 passes. The gain transverse distribution looks like a nonuniform cross distribution, at the opposite of that obtained with the square head. The central volume in the rod, whose diameter typically equals 2 mm, only participates to amplification. The purpose of the square structure is both to solve this problem and to optimize the temperature behavior at 10 Hz. Preliminary results are given. In a last step, we also present some spatio-temporal computations in order to understand the growth of the amplified beam as a function of the number of passes in the rod.

Paper Details

Date Published: 8 December 1995
PDF: 9 pages
Proc. SPIE 2633, Solid State Lasers for Application to Inertial Confinement Fusion (ICF), (8 December 1995); doi: 10.1117/12.228301
Show Author Affiliations
Alain Jolly, CEA (France)
H. Coic, CEA (France)
Ph. Maruenda, CEA (France)
P. Estraillier, CEA (France)
Claude Rouyer, CEA (France)
Rene Bailly-Salins, CEA (France)
Jacques Luce, Quantel SA (France)


Published in SPIE Proceedings Vol. 2633:
Solid State Lasers for Application to Inertial Confinement Fusion (ICF)
Michel Andre; Howard T. Powell, Editor(s)

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