We report the characterization of a synchronously-pumped Kerr-lens mode-locked (KLM) femtosecond Cr4+:forsterite laser, generating 66 fs pulses at 1240 nm, with 200 mW output power. The influence of the induced thermal lensing on the fast Kerr modulation is analysed by a simple model, which shows that the conventional criteria employed for KLM optimization of Ti:sapphire must be revised when considering the strong thermal effects induced in the Cr4+:forsterite crystal. Indications from our simple model agree with the experimental results.
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Titolo: | Influence of thermal effects in Kerr-lens modelocked femtosecond Cr4+:forsterite lasers |
Autori: | |
Data di pubblicazione: | 1997 |
Rivista: | |
Abstract: | We report the characterization of a synchronously-pumped Kerr-lens mode-locked (KLM) femtosecond Cr4+:forsterite laser, generating 66 fs pulses at 1240 nm, with 200 mW output power. The influence of the induced thermal lensing on the fast Kerr modulation is analysed by a simple model, which shows that the conventional criteria employed for KLM optimization of Ti:sapphire must be revised when considering the strong thermal effects induced in the Cr4+:forsterite crystal. Indications from our simple model agree with the experimental results. |
Handle: | http://hdl.handle.net/11571/109135 |
Appare nelle tipologie: | 1.1 Articolo in rivista |