Advances of Yb: CALGO laser crystals

H Wang, J Pan, Y Meng, Q Liu, Y Shen - Crystals, 2021 - mdpi.com
Yb: CaGdAlO4, or Yb: CALGO, a new laser crystal, has been attracting increasing attention
recently in a myriad of laser technologies. This crystal features salient thermal, spectroscopic …

17.8 fs broadband Kerr-lens mode-locked Yb: CALGO oscillator

Y Wang, X Su, Y Xie, F Gao, S Kumar, Q Wang, C Liu… - Optics Letters, 2021 - opg.optica.org
Pulses as short as 17.8 fs with a spectral bandwidth of 145 nm and central wavelength of
1118 nm have been generated from a Kerr-lens mode-locked Yb: CALGO oscillator. The …

XUV sources based on intra-oscillator high harmonic generation with thin-disk lasers: current status and prospects

F Labaye, M Gaponenko, N Modsching… - IEEE Journal of …, 2019 - ieeexplore.ieee.org
Ultrafast thin-disk laser (TDL) oscillators provide higher intracavity pulse energy, average
power, and peak power levels than any other femtosecond laser oscillator technology. They …

Polygonal vortex beams

Y Shen, Z Wan, Y Meng, X Fu… - IEEE Photonics Journal, 2018 - ieeexplore.ieee.org
We originally exploit the vortex beams with patterns of closed polygons [namely, polygonal
vortex beams (PVBs)] generated by a quasi-frequency-degenerate (QFD) Yb: CALGO laser …

10-W-scale Kerr-lens mode-locked Yb: CALYO laser with sub-100-fs pulses

W Tian, R Xu, L Zheng, X Tian, D Zhang, X Xu, J Zhu… - Optics Letters, 2021 - opg.optica.org
We reported a high-power pure Kerr-lens mode-locked Yb: CALYO laser based on the dual-
confocal cavity delivering sub-100-fs pulses. The output pulses at 81 MHz have an average …

Multigigawatt 50 fs Yb: CALGO regenerative amplifier system with 11 W average power and mid-infrared generation

W Wang, H Wu, C Liu, B Sun, H Liang - Photonics Research, 2021 - opg.optica.org
Lasers with high average and high peak power as well as ultrashort pulse width have been
all along demanded by nonlinear optics studies, strong-field experiments, electron dynamics …

Efficient few-cycle Yb-doped laser oscillator with Watt-level average power

F Labaye, VJ Wittwer, M Hamrouni, N Modsching… - Optics …, 2022 - opg.optica.org
So far, the operation of ultrafast bulk laser oscillators based on Yb-doped gain materials and
directly emitting few-cycle pulses have been restricted to low optical-to-optical efficiencies …

Sub-100-fs Kerr lens mode-locked Yb:Lu2O3 thin-disk laser oscillator operating at 21 W average power

N Modsching, J Drs, J Fischer, C Paradis, F Labaye… - Optics …, 2019 - opg.optica.org
We investigate power-scaling of a Kerr lens mode-locked (KLM) Yb: Lu_2O_3 thin-disk laser
(TDL) oscillator operating in the sub-100-fs pulse duration regime. Employing a scheme with …

Diode-pumped high-power sub-100 fs Kerr-lens mode-locked Yb:CaYAlO4 laser with 1.85 MW peak power

W Tian, C Yu, J Zhu, D Zhang, Z Wei, X Xu, J Xu - Optics Express, 2019 - opg.optica.org
We demonstrated a diode-pumped high-power Kerr-lens mode-locked Yb: CaYAlO_4 (Yb:
CALYO) laser with a dual-confocal cavity, directly generating 59-fs pulses with 6.2 W …

Periodic-trajectory-controlled, coherent-state-phase-switched, and wavelength-tunable SU (2) geometric modes in a frequency-degenerate resonator

Y Shen, X Yang, X Fu, M Gong - Applied optics, 2018 - opg.optica.org
We report a method to realize the periodic trajectory controlling, coherent-state phase
switching, and wavelength tuning of SU (2) geometric modes (GMs) in a frequency …