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1 November 2024 Ultra-short-pulse oscillator, pre-amplifier and high-power Ho:YAG slab amplifier
Lucas Groult, Jake Sanwell, Tara van Abeelen, Richard M. Carter, Duncan P. Hand, M.J. Daniel Esser
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Proceedings Volume PC13201, High-Power Lasers and Technologies for Optical Countermeasures II; PC1320109 (2024) https://doi.org/10.1117/12.3031744
Event: Security + Defence, 2024, Edinburgh, United Kingdom
Abstract
Power scaling high repetition-rate ultra-short-pulse lasers, operating in the atmospheric transmission window beyond 2.0 μm, may offer new defence capabilities, provide efficient non-linear conversion to 3-5 μm, and will enable interesting high power ultra-fast laser-matter interaction studies. Our system consists of a commercial mode-locked laser oscillator operating at a central wavelength of 2.090 μm, coupled into a 28-times-gain Ho:YAG rod double-pass pre-amplifier, as well as a high-power Ho:YAG slab amplifier, itself pumped by an in-house developed 300W-class Tm:YLF slab laser. We will be presenting our experimental power scaling results, alongside ultra-fast laser-matter interaction studies on relevant infrared materials, including silicon, germanium, ZnSe and GaAs.
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Lucas Groult, Jake Sanwell, Tara van Abeelen, Richard M. Carter, Duncan P. Hand, and M.J. Daniel Esser "Ultra-short-pulse oscillator, pre-amplifier and high-power Ho:YAG slab amplifier", Proc. SPIE PC13201, High-Power Lasers and Technologies for Optical Countermeasures II, PC1320109 (1 November 2024); https://doi.org/10.1117/12.3031744
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KEYWORDS
Oscillators
Laser development
Laser-matter interactions
Mode locking
Ultrafast phenomena
Picosecond phenomena
Silicon
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