Options
Südmeyer, Thomas
Nom
Südmeyer, Thomas
Affiliation principale
Fonction
Directeur
Email
thomas.sudmeyer@unine.ch
Identifiants
Résultat de la recherche
Voici les éléments 1 - 10 sur 16
- PublicationMétadonnées seulementUltrafast thin-disk laser with 80 ?J pulse energy and 242 W of average power(2014)
; ; Keller, Ursula - PublicationMétadonnées seulementSESAM mode-locked Yb: CaGdAlO< sub> 4 thin disk laser with 62 fs pulse generation(2013)
; Keller, Ursula - PublicationMétadonnées seulementYb-doped mixed sesquioxides for ultrashort pulse generation in the thin disk laser setup(2013)
; - PublicationMétadonnées seulementBeam delivery and pulse compression to sub-50 fs of a modelocked thin-disk laser in a gas-filled Kagome-type HC-PCF fiber(2013)
; Benabid, Fetah - PublicationMétadonnées seulementCutting-edge high-power ultrafast thin disk oscillators(2013)
; - PublicationMétadonnées seulementPhase-stabilization of the carrier-envelope-offset frequency of a SESAM modelocked thin disk laser(2013)
; - PublicationAccès libreCutting-Edge High-Power Ultrafast Thin Disk Oscillators
; ; Keller, UrsulaA growing number of applications in science and industry are currently pushing the development of ultrafast laser technologies that enable high average powers. SESAM modelocked thin disk lasers (TDLs) currently achieve higher pulse energies and average powers than any other ultrafast oscillator technology, making them excellent candidates in this goal. Recently, 275 W of average power with a pulse duration of 583 fs were demonstrated, which represents the highest average power so far demonstrated from an ultrafast oscillator. In terms of pulse energy, TDLs reach more than 40 µJ pulses directly from the oscillator. In addition, another major milestone was recently achieved, with the demonstration of a TDL with nearly bandwidth-limited 96-fs long pulses. The progress achieved in terms of pulse duration of such sources enabled the first measurement of the carrier-envelope offset frequency of a modelocked TDL, which is the first key step towards full stabilization of such a source. We will present the key elements that enabled these latest results, as well as an outlook towards the next scaling steps in average power, pulse energy and pulse duration of such sources. These cutting-edge sources will enable exciting new applications, and open the door to further extending the current performance milestones. - PublicationAccès libre275 W average output power from a femtosecond thin disk oscillator operated in a vacuum environment
; ; Keller, UrsulaWe present an ultrafast thin disk laser that generates an average output power of 275 W, which is higher than any other modelocked laser oscillator. It is based on the gain material Yb:YAG and operates at a pulse duration of 583 fs and a repetition rate of 16.3 MHz resulting in a pulse energy of 16.9 µJ and a peak power of 25.6 MW. A SESAM designed for high damage threshold initiated and stabilized soliton modelocking. We reduced the nonlinearity of the atmosphere inside the cavity by several orders of magnitude by operating the oscillator in a vacuum environment. Thus soliton modelocking was achieved at moderate amounts of self-phase modulation and negative group delay dispersion. Our approach opens a new avenue for power scaling femtosecond oscillators to the kW level. - PublicationAccès libreYb-doped mixed sesquioxides for ultrashort pulse generation in the thin disk laser setup
; - PublicationAccès libreSESAM mode-locked Yb:CaGdAlO4 thin disk laser with 62 fs pulse generation
; Keller, UrsulaWe present a semiconductor saturable absorber mirror (SESAM) mode-locked thin disk laser (TDL) based on Yb:CaGdAlO4 (Yb:CALGO) generating 62 fs pulses, which is the shortest pulse duration achieved from mode-locked TDLs to date. The oscillator operates at a repetition rate of 65 MHz and delivers 5.1 W of average output power. The short pulse duration of our TDL in combination with the high intracavity peak power of 44 MW makes this oscillator attractive for intracavity table-top extreme nonlinear optics applications such as high harmonic generation and vacuum ultraviolet frequency comb generation. The current average power was limited by the quality of the Yb:CALGO disk. However, power scaling of Yb:CALGO TDLs to the multi-10-W range with short pulse durations (<100 fs) appears feasible in the near future by using thinner disks of better quality and further optimized SESAMs.