Satellite pulse generation in diode-pumped passively Q-switched Nd:GdVO4 lasers

We have both experimentally and numerically investigated the satellite pulse generation in diode-pumped passively Q-switchedNd:GdVO_4lasers with Cr4 :YAG saturable absorber. We show experimentally that satellite pulse generation is a general effect of the lasers under strong pumping, and its formati...

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Bibliographic Details
Published in:IEEE journal of quantum electronics 2006-07, Vol.42 (7-8), p.625-632
Main Authors: NG, S. P, TANG, D. Y, QIAN, L. J, QIN, L. J
Format: Article
Language:English
Subjects:
Diode-pumped lasers
Doped-insulator lasers and other solid state lasers
Exact sciences and technology
Fundamental areas of phenomenology (including applications)
Laser optical systems: design and operation
Lasers
Optics
Physics
Q-switching
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Summary:We have both experimentally and numerically investigated the satellite pulse generation in diode-pumped passively Q-switchedNd:GdVO_4lasers with Cr4 :YAG saturable absorber. We show experimentally that satellite pulse generation is a general effect of the lasers under strong pumping, and its formation is always associated with the appearance of strong Q-switched pulses. Satellite pulse generation of the lasers is further numerically simulated based on a coupled rate-equation model. Our numerical simulations show that the phenomenon is caused by the finite lifetime of the lower laser energy level of the lasers.
ISSN:0018-9197
1558-1713
DOI:10.1109/JQE.2006.875866