Pulse amplification in a Cr4+:forsterite single longitudinal mode (SLM) multi-pass amplifier

An efficient multi-pass Cr:forsterite master oscillator-power amplifier laser system operating in the single-longitudinal mode was demonstrated and characterized. A significant increase in energy was obtained in a six-pass amplifier configuration giving a maximum value of up to 10.8 mJ, with a good...

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Bibliographic Details
Published in:Laser physics 2019-06, Vol.29 (6)
Main Authors: Stoychev, L I, Cabrera, H, Gadedjisso-Tossou, K S, Nikolov, I P, Sigalotti, P, Demidovich, A A, Suárez-Vargas, J J, Mocchiutti, E, Niemela, J, Baruzzo, M, Vasiliev, N, Zaporozhchenko, Y, Danailov, M B, Vacchi, Andrea
Format: Article
Language:English
Subjects:
Cr:forsterite laser
laser amplification
multi-pass amplifier
single longitudinal mode
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Summary:An efficient multi-pass Cr:forsterite master oscillator-power amplifier laser system operating in the single-longitudinal mode was demonstrated and characterized. A significant increase in energy was obtained in a six-pass amplifier configuration giving a maximum value of up to 10.8 mJ, with a good beam quality and without significantly broadening the linewidth or increasing the M2. The amplifier performance was evaluated as a function of the pump energy and the number of passes. A Fourier transformation of the laser pulses was performed to confirm the linewidth value measured using a Fabry-Perot etalon.
ISSN:1054-660X
1555-6611
DOI:10.1088/1555-6611/ab17cf