Numerical model for a hybrid Yb/Nd laser chain at 1053 nm

In recent years, there has been a growing interest in diode-pumped lasers based in Yb-doped materials, due to their excellent properties that enable the achievement of high repetition rates ( similar to Hz) and high energy pulse generation. Flashlamp-pumped, Nd-doped materials remain nevertheless at...

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Bibliographic Details
Published in:Proceedings of the Conference of Light at Extreme Intensities 2009-10, Vol.1228, p.241-250
Main Authors: Joao, Celso P, Wemans, Joao, Figueira, Goncalo
Format: Article
Language:English
Subjects:
Accuracy
Amplification
Amplifiers
Benchmarking
Calcium fluoride
Chains
Computer simulation
Gain
Glass
Lasers
Mathematical models
Media
Neodymium
Population inversion
Pumps
Regenerative
Repetition
YAG
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Summary:In recent years, there has been a growing interest in diode-pumped lasers based in Yb-doped materials, due to their excellent properties that enable the achievement of high repetition rates ( similar to Hz) and high energy pulse generation. Flashlamp-pumped, Nd-doped materials remain nevertheless attractive for obtaining >kJ energies per pulse, because they are a well-established and reliable technology, and the gain media can be produced with large dimensions. In this work, we evaluate numerically the combination of these two technologies in a laser chain consisting of an Yb-based pre-amplifier and a Nd:glass high-energy amplifier. An Yb-based regenerative amplifier operating at 1053 nm has been simulated for different hosts (CaF2, glass, KYW, YAG and CALGO) with modeling of pump, population inversion, gain and spectrum. This is followed by amplification to the 100 mJ-level in a single-pass Nd:glass amplifier with modeling of spectrum and energy. The numerical results for Yb:glass were successfully benchmarked against our experimental data confirming the accuracy and validity of the code.
ISSN:0094-243X