Pump-modulation-induced beam stabilization in high-power fiber laser systems above the mode instability threshold
Jauregui C, Stihler C, Tuennermann A, Limpert J (2018)
Publication Type: Journal article
Publication year: 2018
Journal
Book Volume: 26
Pages Range: 10691-10704
Journal Issue: 8
DOI: 10.1364/OE.26.010691
Abstract
A new way of stabilizing the output beam of a fiber laser system operating above the mode instability threshold is described and the first proof-of-principle experimental results are presented. This technique, which relies on a modulation of the pump power, works by washing the thermally-induced refractive index grating out, which weakens the coupling efficiency between transverse modes. One of the main advantages of this simple, yet powerful, approach is that it can be easily incorporated in already existing fiber laser systems since it does not require any additional optical elements. Using this beam stabilization strategy, a significant pointing stability and beam quality improvement has been demonstrated up to an average power of ~600W which is a factor of 2 above the mode instability threshold.
Involved external institutions
Germany (DE)How to cite
APA:
Jauregui, C., Stihler, C., Tuennermann, A., & Limpert, J. (2018). Pump-modulation-induced beam stabilization in high-power fiber laser systems above the mode instability threshold. Optics Express, 26(8), 10691-10704. https://doi.org/10.1364/OE.26.010691
MLA:
Jauregui, Cesar, et al. "Pump-modulation-induced beam stabilization in high-power fiber laser systems above the mode instability threshold." Optics Express 26.8 (2018): 10691-10704.
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