TY - CHAP
T1 - MHz-rate Cr:ZnS amplifier providing 2.7 W of pulses with sub-10-fs transform limit at 2.3 µm
AU - Liang, Wei
AU - Kimbaras, Džiugas
AU - Fuerbach, Alexander
AU - Steinleitner, Philipp
AU - Cavecchi, Claudio
AU - Gröbmeyer, Sebastian
AU - Okazaki, Daiki
AU - Krausz, Ferenc
AU - Weigel, Alexander
PY - 2025
Y1 - 2025
N2 - Solid-state laser oscillators based on Cr2+-doped II-VI materials have emerged as reliable sources for generating broadband, few-cycle pulses in the 2-3 μm range [1]. Recent studies achieved nonlinear post-compression of the output of a Cr:ZnS oscillator to sub-8-fs, single-cycle duration via spectral broadening in a TiO2 plate [2, 3], rendering Cr:ZnS oscillators promising drivers for multi-octave-spanning mid-infrared light generation [2]. However, the average power of such single-cycle pulses from an oscillator is limited to several hundred milliwatts, restricting possible nonlinear downstream applications. To address this, Cr:ZnS amplifiers are utilized [1, 4]. We developed an amplifier to boost the output power of a 25-MHz Cr:ZnS oscillator to 4.1 W with an M2 of 1.1, and spectrally broadened the amplified pulses in a TiO2 plate to a transform limit of sub-10 fs.
AB - Solid-state laser oscillators based on Cr2+-doped II-VI materials have emerged as reliable sources for generating broadband, few-cycle pulses in the 2-3 μm range [1]. Recent studies achieved nonlinear post-compression of the output of a Cr:ZnS oscillator to sub-8-fs, single-cycle duration via spectral broadening in a TiO2 plate [2, 3], rendering Cr:ZnS oscillators promising drivers for multi-octave-spanning mid-infrared light generation [2]. However, the average power of such single-cycle pulses from an oscillator is limited to several hundred milliwatts, restricting possible nonlinear downstream applications. To address this, Cr:ZnS amplifiers are utilized [1, 4]. We developed an amplifier to boost the output power of a 25-MHz Cr:ZnS oscillator to 4.1 W with an M2 of 1.1, and spectrally broadened the amplified pulses in a TiO2 plate to a transform limit of sub-10 fs.
UR - https://www.scopus.com/pages/publications/105016218690
U2 - 10.1109/CLEO/EUROPE-EQEC65582.2025.11111064
DO - 10.1109/CLEO/EUROPE-EQEC65582.2025.11111064
M3 - Conference abstract
AN - SCOPUS:105016218690
SN - 9798331512538
T3 - Conference on Lasers and Electro-Optics Europe and European Quantum Electronics Conference
BT - CLEO/Europe-EQEC 2025
PB - Institute of Electrical and Electronics Engineers (IEEE)
CY - Munich, Germany
T2 - 2025 Conference on Lasers and Electro-Optics Europe and European Quantum Electronics Conference, CLEO/Europe-EQEC 2025
Y2 - 23 June 2025 through 27 June 2025
ER -