Efficient nonlinear compression of a mode-locked thin-disk oscillator to 27  fs at 98  W average power

Tsai, C. C.; Meyer, Frank; Omar, Alan; Wang, Yicheng; Liang, An-Yuan; Lu, Chih‐Hsuan; Hoffmann, Martin; Yang, Shang-Da; Saraceno, Clara J.

doi:10.1364/ol.44.004115

Cited by 45 publications

(23 citation statements)

References 18 publications

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“…We implement a hybrid compression scheme for KLM Yb:YAG TD oscillators combining two different approaches in sequential stages: two multipass cells followed by a multiplate compression stage. A similar approach with a multipass cell and multiplate arrangement has been used to compress a mode-locked TD oscillator to 27 fs at 98 W [26]. Here, we demonstrate compression of 220 fs pulses with 84 W from a KLM Yb:YAG TD oscillator at 1030 nm to the sub-10 fs regime with high optical efficiency of 65%.…”

Section: Introductionmentioning

confidence: 88%

Efficient nonlinear compression of a thin-disk oscillator to 8.5 fs at 55 W average power

Barbiero,

Wang,

Graßl

et al. 2021

Preprint

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We demonstrate an efficient hybrid-scheme for nonlinear pulse compression of high-power thindisk oscillator pulses to the sub-10 fs regime. The output of a home-built, 16 MHz, 84 W, 220 fs Yb:YAG thin-disk oscillator at 1030 nm is first compressed to 17 fs in two nonlinear multipass cells. In a third stage, based on multiple thin sapphire plates, further compression to 8.5 fs with 55 W output power and an overall optical efficiency of 65% is achieved. By sending the 2.5-cycle pulses into a lithium iodate crystal, we were able to generate ultra-broadband mid-infrared pulses covering the spectral range 2.4-8 µm.

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Section: Introductionmentioning

confidence: 88%

Efficient nonlinear compression of a thin-disk oscillator to 8.5 fs at 55 W average power

Barbiero,

Wang,

Graßl

et al. 2021

Preprint

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“…In particular, high energy thin disk oscillators perfectly fit this parameter range, and have been associated to nonlinear MPCs to decrease the pulse duration of Yb-doped crystals such as LuAG and YAG from >500 fs to <100 fs. [61][62][63] Although it was not the case in the first demonstration, the nonlinear medium is usually a plate located close to the MPC waist. Separating it from the substrate mirrors allows more design freedom, an easier replacement, and fine tuning of the nonlinearity by moving it from the beam waist toward the cell mirrors.…”

Section: Mpcs Including Platesmentioning

confidence: 99%

Nonlinear Optics in Multipass Cells

Hanna

Guichard

Daher

et al. 2021

Laser & Photonics Reviews

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The fundamental principles and experimental implementations of multipass cells used as a platform for nonlinear optics are reviewed. Embedding a nonlinear medium in a multipass cell allows for a distribution of the nonlinearity over large interaction distances, while the beam goes through multiple foci, conferring on the beam a robustness with respect to spatio-spectral coupling effects. Most of the research so far has been focused on temporal compression based on self-phase modulation, with excellent performances especially in terms of energy scaling and throughput. However, other nonlinear phenomena and functions are being increasingly investigated, such as supercontinuum generation, spectral compression, or Raman scattering. Nonlinear optics experiments in multipass cells bear some similarities with the work done in optical fibers over several decades, while allowing straightforward energy scaling potential, and unlocking engineering possibilities through the design of the cell mirrors, geometry, and nonlinear medium.

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“…However, important research efforts are also currently dedicated to efficient external pulse compression of this and other high average power ultrafast laser systems. For the sake of completeness, we mention here one of the most promising techniques, which is the use of efficient multipass cell compression stages [ 73 ], [ 74 ], [ 75 ], [ 76 ].…”

Section: Current Research Directions and Challengesmentioning

confidence: 99%

High-power modelocked thin-disk oscillators as potential technology for high-rate material processing

Wang

Tomilov

Saraceno

2021

Advanced Optical Technologies

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High average power femtosecond lasers have made spectacular progress in the last decades – moving from laboratory-based systems with maximum average powers of tens of watts to kilowatt-class mature industrial systems in a short time. The availability of such systems opens new possibilities in many fields; one of the most prominent ones that have driven many of these technological advances is precise high-speed material processing, where ultrashort pulses have long been recognized to provide highest precision processing of virtually any material, and high average power extends these capabilities to highest processing rates. Here, we focus our attention on one high-average power technology with large unexplored potential for this specific application: directly modelocked multi-MHz repetition frequency high-power thin-disk oscillators. We review their latest state-of-the-art and discuss future directions and challenges, specifically with this application field in mind.

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Efficient nonlinear compression of a mode-locked thin-disk oscillator to 27 fs at 98 W average power

Cited by 45 publications

References 18 publications

Efficient nonlinear compression of a thin-disk oscillator to 8.5 fs at 55 W average power

Efficient nonlinear compression of a thin-disk oscillator to 8.5 fs at 55 W average power

Nonlinear Optics in Multipass Cells

High-power modelocked thin-disk oscillators as potential technology for high-rate material processing

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