Nonlinear pulse compression to 51-W average power GW-class 35-fs pulses at 2-µm wavelength in a gas-filled multi-pass cell

Gierschke, Philipp; Grebing, Christian; Lenski, Mathias; Abdelaal, Mahmoud; Buldt, Joachim; Wang, Ziyao; Heuermann, Tobias; Gebhardt, Martin; Müller, Michael; Rothhardt, Jan; Limpert, Jens

doi:10.1364/ol.462647

Cited by 11 publications

(3 citation statements)

References 29 publications

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“…Unfortunately, the narrow gain bandwidth in this case results in an output pulse width of several ps after the chirped pulse amplifier (CPA). Hence, new schemes with nonlinear spectral broadening in a gas-filled hollow-core fiber (HCF) [ 14 , 15 ] , a hollow-core photonic crystal fiber (HC-PCF) [ 16 , 17 ] or a multipass cell (MPC) [ 18 ] are necessary to achieve few-cycle pulses after compression.…”

Section: Introductionmentioning

confidence: 99%

High-efficiency bismuth borate-based optical parametric chirped pulse amplifier with approximately 2.1 mJ, 38 fs output pulses at approximately 2150 nm

Petrulėnas

Mackonis²,

Rodin³

2023

High Pow Laser Sci Eng

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We present a compact and cost-effective mJ-level femtosecond laser system operating at a center wavelength of ~2.15 µm. An affordable two-stage Yb:YAG chirped pulse amplifier provides >10 mJ, ~1.2 ps pulses at 1030 nm to pump 3-stage OPCPA based on BiBO crystals and to drive the supercontinuum seed in the YAG crystal. The energy of amplified pulses in the wavelength range of 1.95 -2.4 µm reached 2.25 mJ with a pump-tosignal conversion efficiency of ~25% in the last OPCPA stage. These pulses were compressed to 38 fs in a pair of Suprasil 300 glass prisms.

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Section: Introductionmentioning

confidence: 99%

High-efficiency bismuth borate-based optical parametric chirped pulse amplifier with approximately 2.1 mJ, 38 fs output pulses at approximately 2150 nm

Petrulėnas

Mackonis²,

Rodin³

2023

High Pow Laser Sci Eng

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“…2016年, Schulte等 [28] 首次使用固体MPC 非线性脉冲压缩技术, 在输入功率大于400 W、脉冲宽度850 fs、重复频率10 MHz的条件下, 实现了平均功率375 W、脉冲宽度170 fs的脉冲压缩, 压缩比为5; 2020年, Grebing等 [29] 使用充惰性气体(氩气)的MPC非线性脉冲压缩技术, 在输入功率为1040 W、脉冲宽度200 fs、重复频率1 MHz 的脉冲参数下, 获得了平均功率1000 W、脉冲宽度31 fs的激光输出, 压缩比为6.45; 2021年Kau-manns等 [30] 使用充惰性气体的MPC装置将单脉冲能量提高至100 mJ, 这也是目前MPC实现的最高能量的脉冲压缩. 表1列出了近年来单级MPC 非线性脉冲压缩技术的研究进展 [28,[31][32][33][34][35][36][37][38][39]42] , 可以看出当输入脉冲为飞秒激光, 单级压缩比约为5 -10; 当输入脉冲为皮秒激光, 单级压缩比约为20 -30.…”

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Nonlinear pulse compression technique based on in multi-pass plano-cancave cavity

Li,

Teng,

Tian

et al. 2024

Acta Phys. Sin.

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Ultrafast femtosecond laser systems with hundreds of microjoules of energy operating at repetition frequencies of several kilohertz have very important applications for many fields such as medicine,mid-infrared laser generation,industrial processing and vibrational spectroscopy.The Chirped Pulse Amplification (CPA) technique provides a feasible path to obtain light sources with such parameters.However,the use of chirped pulse amplification increases the technical complexity and cost of the laser system.Recently,the proposal of Multi-pass Cell (MPC) nonlinear pulse compression technique allows us to obtain high power ultrafast femtosecond pulses with reduced technical complexity and cost.The composition of the device requires only two concave mirrors and a nonlinear medium in between.In the past seven years,the Multi-pass Cell nonlinear pulse compression technique has been developed so much that it has become possible to obtain ultrashort pulses with average power of more than a few kW and peak power of tens to hundreds of TW.In this work,we have achieved nonlinear pulse compression for a 100 W picosecond laser using an improved nonlinear pulse compression scheme that combines a hybrid of a plano-cancave multi-pass cell and multi-thin-plate.Using fused silica plates in plano-cancave cavity,the spectral bandwidth (FWHM) of input picosecond laser is broadened from 0.24 nm to 4.8 nm due to self-phase modulation effect,the pulse is compressed to 483 fs by dispersion compensation using grating pairs,which corresponds the compression factor of 22,and the final output power of 44.2 W is obtained.As comparison of conventional MPC,the plano-cancave cavity scheme we developed is a very promising solution for nonlinear compression due to its compact,more stability and large compression ratio.

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“…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]. Just recently, the first MPCs operating in the 2 µm regime with subsequent pulse compression have been demonstrated [20,21].…”

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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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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Nonlinear pulse compression to 51-W average power GW-class 35-fs pulses at 2-µm wavelength in a gas-filled multi-pass cell

Cited by 11 publications

References 29 publications

High-efficiency bismuth borate-based optical parametric chirped pulse amplifier with approximately 2.1 mJ, 38 fs output pulses at approximately 2150 nm

High-efficiency bismuth borate-based optical parametric chirped pulse amplifier with approximately 2.1 mJ, 38 fs output pulses at approximately 2150 nm

Nonlinear pulse compression technique based on in multi-pass plano-cancave cavity

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

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