Power scaling of segmented and homogeneously doped Ho^{3+}:YAG laser resonators

Katharina Goth; Marius Rupp; Michael Griesbeck; Madeleine Eitner; Marc Eichhorn; Christelle Kieleck

doi:10.1117/12.2682141

23 October 2023 Power scaling of segmented and homogeneously doped Ho³⁺: YAG laser resonators

Katharina Goth, Marius Rupp, Michael Griesbeck, Madeleine Eitner, Marc Eichhorn, Christelle Kieleck

Proceedings Volume 12738, Technologies for Optical Countermeasures XIX; 127380E (2023) https://doi.org/10.1117/12.2682141
Event: SPIE Security + Defence, 2023, Amsterdam, Netherlands

Abstract

We report on laser resonators with a segmented and a homogeneously doped Ho³⁺:YAG crystal delivering over 60 W of output power with near-diffraction-limited beam quality. The resonators with both crystals exhibit high slope efficiencies around 67% and maximum pulse energies of 1.14 mJ and 1.04 mJ are measured for the homogeneously doped and segmented crystal, respectively, at a repetition rate of 50 kHz. Q-switched pulses with a pulse peak power of 108 kW are generated with the homogeneous crystal at a repetition rate of 25 kHz. In a slight redesign of the cavity, 1:24 mJ, 33 ns pulses with a pulse peak power of 38kW are measured.

(2023) Published by SPIE. Downloading of the abstract is permitted for personal use only.

Citation Download Citation

Katharina Goth, Marius Rupp, Michael Griesbeck, Madeleine Eitner, Marc Eichhorn, and Christelle Kieleck "Power scaling of segmented and homogeneously doped Ho³⁺: YAG laser resonators", Proc. SPIE 12738, Technologies for Optical Countermeasures XIX, 127380E (23 October 2023); https://doi.org/10.1117/12.2682141

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