Overcoming Bifurcation Instability in High-Repetition-Rate Ho:YLF Regenerative Amplifiers
Optics
2023-07-19 v2
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 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.
Keywords
Cite
@article{arxiv.1510.01910,
title = {Overcoming Bifurcation Instability in High-Repetition-Rate Ho:YLF Regenerative Amplifiers},
author = {Peter Kroetz and Axel Ruehl and Gourab Chatterjee and Anne-Laure Calendron and Krishna Murari and Huseyin Cankaya and Peng Li and Franz X. Kaertner and Ingmar Hartl and R. J. Dwayne Miller},
journal= {arXiv preprint arXiv:1510.01910},
year = {2023}
}