Abstract
We demonstrate a Ho:YLF regenerative amplifier (RA) overcoming bifurcation instability and consequently achieving high extraction energies of 6.9 mJ at a repetition rate of 1 kHz with pulse-to-pulse fluctuations of 1.1%. Measurements of the output pulse energy, corroborated by numerical simulations, identify an operation point (OP) that allows high-energy pulse extraction at a minimum noise level. Complete suppression of the onset of bifurcation was achieved by gain saturation after each pumping cycle in the Ho:YLF crystal via lowering the repetition rate and cooling the crystal. Even for moderate cooling, a significant temperature dependence of the Ho:YLF RA performance was observed.
© 2015 Optical Society of America
Full Article | PDF ArticleMore Like This
Lorenz von Grafenstein, Martin Bock, Dennis Ueberschaer, Uwe Griebner, and Thomas Elsaesser
Opt. Express 23(26) 33142-33149 (2015)
L. von Grafenstein, M. Bock, D. Ueberschaer, U. Griebner, and T. Elsaesser
Opt. Lett. 41(20) 4668-4671 (2016)
M. Hemmer, D. Sánchez, M. Jelínek, Vadim Smirnov, H. Jelinkova, V. Kubeček, and J. Biegert
Opt. Lett. 40(4) 451-454 (2015)