A 5 Hz flashlamp pumped Cr:LiSAF multipass amplifier for ultrashort pulses
Samad, R E; Nogueira, G E C; Baldochi, S L; Vieira, N D; Samad, R E; Centro de Lasers e Aplicações, Instituto de Pesquisas Energéticas e Nucleares, IPEN–CNEN/SP Avenida Professor Lineu Prestes, 2242, Cidade Universitária, CEP 05508-000, São Paulo, SP, Brazil; Nogueira, G E C; Centro de Lasers e Aplicações, Instituto de Pesquisas Energéticas e Nucleares, IPEN–CNEN/SP Avenida Professor Lineu Prestes, 2242, Cidade Universitária, CEP 05508-000, São Paulo, SP, Brazil; Baldochi, S L; Centro de Lasers e Aplicações, Instituto de Pesquisas Energéticas e Nucleares, IPEN–CNEN/SP Avenida Professor Lineu Prestes, 2242, Cidade Universitária, CEP 05508-000, São Paulo, SP, Brazil; Vieira, N D; Centro de Lasers e Aplicações, Instituto de Pesquisas Energéticas e Nucleares, IPEN–CNEN/SP Avenida Professor Lineu Prestes, 2242, Cidade Universitária, CEP 05508-000, São Paulo, SP, Brazil
Журнал:
Journal of Optics A: Pure and Applied Optics
Дата:
2008-10-01
Аннотация:
We report here the operation, at 5 Hz, of a multipass flashlamp pumped Cr:LiSAF ultrashort pulse amplifier, presenting peak powers over 0.3 TW. This unusual high repetition rate was obtained by using a two-flashlamp pumping scheme, aiming at the minimization of the thermal load on the gain medium by the use of intracavity absorption filters. This cavity was used as a four-pass multipass amplifier in a hybrid Ti:sapphire/Cr:LiSAF system. The maximum amplification factor was 150, and the compressed pulse duration was 60 fs.
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