Nonlinear pulse compression to sub-two-cycle, 1.3 mJ pulses at 1.9 μm wavelength with 132 W average power

Wang, Ziyao; Heuermann, Tobias; Gebhardt, Martin; Lenski, Mathias; Gierschke, Philipp; Klas, Robert; Rothhardt, Jan; Jáuregui, César; Limpert, Jens

doi:10.1364/ol.487587

Cited by 8 publications

(2 citation statements)

References 28 publications

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“…The chosen compressor in terms of fused silica turns out to be an excellent compression scheme in this wavelength regime due to its ease of implementation and adjustment. A recent publication of Wang et al demonstrated that this compression approach allows compression (in combination with waveguide based spectral broadening) down to 10 fs [14]. However, the potential for further pulse compression might be limited by the higher-order dispersion exhibited by fused silica.…”

Section: Discussionmentioning

confidence: 99%

“…To achieve further pulse shortening, pulse post-compression is essential. State-of-the-art nonlinear pulse compression in the SWIR spectral region is realized employing thin plates or waveguide based approaches, such as normal dispersion fibers or noble-gas-filled hollow-core fibers or capillaries [13,14]. However, multi-pass cells (MPCs) with a nonlinear element or gas have recently been proven as an alternative approach for nonlinear post-compression, providing high throughput efficiency, excellent beam quality preservation, spatially homogenized spectral broadening as well as being insensitive to beam-pointing and beam-profile variations [15][16][17][18][19].…”

Section: Introductionmentioning

confidence: 99%

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Highly efficient nonlinear compression of mJ pulses at 2 μm wavelength to 20 fs in a gas-filled multi-pass cell

Eisenbach,

Wang,

Schulte

et al. 2024

J. Phys. Photonics

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Within this work we demonstrate the highly efficient nonlinear spectral broadening and subsequent temporal compression of 1.49 mJ pulses at 101 kHz repetition rate from an ultrafast thulium-doped fiber laser system employing a gas-filled multi-pass cell. To achieve spectral broadening, we use a krypton and helium-filled Herriott-type multi-pass cell with highly reflective broadband dielectric mirrors. The spectrally broadened pulses are subsequently compressed using fused-silica plates, resulting in a pulse duration of 20 fs and an overall excellent transmission of 96%. Furthermore, the beam quality is preserved up to the maximum output power of 144 W. It provides, to the best of our knowledge, the highest average power with few-cycle pulses at 2 µm wavelength with almost 10 times more pulse energy and 3 times more average power than previous 2-µm multi-pass cells, enabling future secondary source experiments.

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Section: Discussionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Highly efficient nonlinear compression of mJ pulses at 2 μm wavelength to 20 fs in a gas-filled multi-pass cell

Eisenbach,

Wang,

Schulte

et al. 2024

J. Phys. Photonics

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TW-scale few-cycle short-wave infrared laser based on nonlinear compression in a large-core gas-filled hollow core fiber

Feng,

Qian,

Peng

et al. 2024

Applied Physics Letters

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In this Letter, we present the generation of terawatt-scale few-cycle short-wave infrared (SWIR) lasers using nonlinear compression in a large-core gas-filled hollow core fiber. Through the experimental verification, we investigate the energy scaling properties and nonlinear pulse propagation in the argon-filled hollow core fiber. At static pressure, the system delivers pulses with 5.55 mJ/9.04 fs at a central wavelength of 1.45 μm, resulting in a peak power of about 0.5 TW. Subsequently, based on the chirped input pulses and pressure gradient, the system delivers terawatt-scale two-cycle SWIR pulses with 9.52 mJ/10.65 fs, resulting in a record peak power of about 0.7 TW. This study marks a crucial advancement in the field of SWIR ultra-intense, ultrashort pulse nonlinear interaction platforms. This high-energy, few-cycle SWIR source has significant applications in high-intensity THz radiation, x-ray generation, and other fields of strong-field physics.

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Highly efficient, ultra-broadband mid infrared generation driven by a Tm-doped fiber laser system

Heuermann,

Wang,

Lenski

et al. 2024

Fiber Lasers XXI: Technology and Systems

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We present on the nonlinear downconversion of a post-compressed Tm-doped fiber laser system via intrapulse difference frequency generation. In a preliminary experiment, with sampled 15 fs driving pulses and a 3 mm Gallium Selenide crystal, we achieved an octave spanning spectrum (5-16 µm) with a conversion efficiency of 3.6%. Utilizing the full 100 W driving laser power, we believe that this approach can pave the way towards W-class emission in the molecular fingerprint region enabling unprecedented sensitivity and precision in future spectroscopic applications.

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Nonlinear pulse compression to sub-two-cycle, 1.3 mJ pulses at 1.9 μm wavelength with 132 W average power

Cited by 8 publications

References 28 publications

Highly efficient nonlinear compression of mJ pulses at 2 μm wavelength to 20 fs in a gas-filled multi-pass cell

Highly efficient nonlinear compression of mJ pulses at 2 μm wavelength to 20 fs in a gas-filled multi-pass cell

TW-scale few-cycle short-wave infrared laser based on nonlinear compression in a large-core gas-filled hollow core fiber

Highly efficient, ultra-broadband mid infrared generation driven by a Tm-doped fiber laser system

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