Generation of 33  fs pulses directly from a Kerr-lens mode-locked Yb:CaYAlO_4 laser

Diode-pumped 45 fs Yb:CALGO laser oscillator with 17 MW of peak power

“…However, the peak power was only 29 kW and the laser used a high-quality fiber laser pumping that is complex and not cost-effective. Similar pulse duration of 33 fs was achieved from Yb:CALYO crystal with diode pumping [10]. The peak power was only 11 kW in that case.…”

“…In this Letter, we demonstrate, to the best of our knowledge, the highest peak power ever achieved for any sub-50 fs diode-pumped Yb-doped lasers to date by exploiting the advantages of the Yb:CALGO crystal, efficient diode pumping, and the dual action of the Kerr-lens mode locking (KLM) and semiconductor saturable absorber mirror mode locking (SESAM). While KLM and SESAM are well-known techniques to generate ultrashort pulses on their own [8,[10][11][12]16,17], their combination offers the benefits of operation with both high output power and short pulse duration [14,[18][19][20]. As a result, the developed Yb:CALGO laser directly produced 45 fs long pulses with 1.7 MW of peak power.…”

High repetition rate ultrafast laser technology for drivinghigh-order harmonic generation

“…我们课题组近几年深入研究了半导体 激光器泵浦的克尔透镜锁模Yb振荡器技术 [115,116] . 2015 年, 利用半导体激光器泵浦Yb:CALYO晶体, 实现了 33 fs的超短脉冲输出 [117] , 光谱半高宽接近50 nm, 支持…”

Tunable laser operations in a Nd-doped SrLaAlO4 crystal

“…1 Ytterbium (Yb) doped materials are regarded as a promising kind of gain media for 1 mm solid-state lasers, due to the strong electron-phonon coupling of Yb-ions resulting in signicant spectrum broadening. 2,3 Great efforts have been made in the past few years to generate widely tunable Yb-doped lasers and some encouraging results have been achieved. In 2007 V. Petrov et al reported highly efficient Yb:NaY(WO 4 ) 2 tunable lasers, with a tunability range of 69 nm.…”