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A numerical model of OPCPA incorporating transverse effects indicates that spatial phenomena are of critical importance. The results differ radically from those of plane-wave codes, revealing complex beam profiles and significantly altered conversion efficiencies.
Summary form only given. In recent years, there has been a great deal of interest in Kerr-lens mode-locking (KLM) in view of its implications for femtosecond pulse generation in solid-state lasers. We are currently applying our numerical model to the novel KLM cavities proposed by Ramaswamy-Paye et al. and Bouma et al. We will also analyze the effect of nonradially symmetric pump beams such as those...
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