13.4 fs, 0.1 Hz OPCPA Front End for the 100 PW-Class Laser Facility

Wang, Xinliang; Liu, Xingyan; Lu, Xiaoming; Chen, Junchi; Long, Yingbin; Li, Wenkai; Chen, Haidong; Chen, Xun; Bai, Peile; Li, Yanyan; Peng, Yujie; Liu, Yanqi; Wu, Fenxiang; Wang, Cheng; Li, Zhaoyang; Xu, Yi; Liang, Xiaoyan; Leng, Yuxin; Li, Ruxin

doi:10.34133/2022/9894358

Cited by 44 publications

(17 citation statements)

References 35 publications

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“…The three-stage cascaded OPCPA amplifier contains three independent pump sources, namely OPCPA-1 (pulse duration is 4 ns, pulse energy is 100mJ at a repetition rate of 100 Hz), OPCPA-2 (pulse duration is 4.5 ns, pulse energy is 3 J at a repetition rate of 1 Hz) and OPCPA-3 (pulse duration 4.5 ns, pulse energy 25 J at a repetition rate of 0.1 Hz). Finally, a pulse train with pulse energy of 5.26 J, full spectral width of 210 nm at the center wavelength of 925 nm and pulse duration of 13.4 fs, close to the Fourier transform limit, is successfully output, and its peak power is as high as 263 TW [ 38 ] .…”

Section: Synchronization Of the Front End Of The 100-pw Lasermentioning

confidence: 99%

Timing fluctuation correction for the front end of a 100-PW laser

Liu

Wang

et al. 2023

High Pow Laser Sci Eng

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The development of high-intensity ultrafast laser facilities provides the possibility to create novel physical phenomena and matter states. The timing fluctuation of the laser pulses is crucial for pump–probe experiments, which is one of the vital means to observe the ultrafast dynamics driven by intense laser pulses. In this paper, we demonstrate the timing fluctuation characterization and control of the front end of a 100-PW laser that is composed of a high-contrast optical parametric amplifier (seed) and a 200-TW optical parametric chirped pulse amplifier (preamplifier). By combining the timing jitter measurement with a feedback system, the laser seed and preamplifier are synchronized to the reference with timing fluctuations of 1.82 and 4.48 fs, respectively. The timing system will be a key prerequisite for the stable operation of 100-PW laser facilities and provide the basis for potential pump–probe experiments performed on the laser.

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Section: Synchronization Of the Front End Of The 100-pw Lasermentioning

confidence: 99%

Timing fluctuation correction for the front end of a 100-PW laser

Liu

Wang

et al. 2023

High Pow Laser Sci Eng

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“…In addition, to avoid the pulse front distortion caused by the chromatic aberration in lenses [35][36][37], all the telescopes are designed as reflective-type utilizing offaxis parabolic (OAP) mirrors, which also can decrease the lenses introduced material dispersion in this 100 PW level laser facility. The seed laser source has been developed [38], it includes a commercial Ti:sa kHz femtosecond laser, an infrared OPA, a gas filled hollow core fiber, and a cascaded second harmonic generation module. The output spectral width is ~265 nm with a central wavelength of 925 nm, the pulse energy is ~100 μJ, the pulse duration is ~10 fs (very close to FTL value), and the temporal contrast is about 10 -11 level.…”

Section: Introductionmentioning

confidence: 99%

“…In this work, the stretcher and compressor are analyzed by ray-tracing method [40], the material dispersion is calculated by Sellmeier formula [41], and the OPP is simulated by coupled-wave equation [39,42]. This calculation model is based on MATLAB, and has been demonstrated in our previous works [25,38]. The phases of a double-grating Offner stretcher and a Treacy compressor are shown as Eq.1 and Eq.2, respectively.…”

Section: Introductionmentioning

confidence: 99%

Dispersion management for a 100 PW level laser using a mismatched-grating compressor

Liu

et al. 2022

High Pow Laser Sci Eng

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We report the dispersion management based on mismatched-grating compressor for a 100 PW level laser, which utilizes optical parametric chirped pulse amplification and meanwhile features large chirped pulse duration and ultra-broadband spectrum. The numerical calculation indicates that the amplified pulses with 4 ns chirped pulse duration and 210 nm spectral bandwidth can be directly compressed to sub-13 fs, which is close to the Fourier-transform-limit (FTL). More importantly, the tolerances of mismatched-grating compressor to the misalignment of stretcher, the error of desired grating groove density, and the variation of material dispersion are comprehensively analyzed, which is crucial important for its practical application. The results demonstrate that good tolerances and near FTL compressed pulses can be achieved simultaneously, just by keeping a balance between the residual second-, third-and fourth-order dispersion in the laser system. This work can offer a meaningful guideline for the design and construction of 100 PW level lasers.

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“…With the construction of high-intensity laser facilities such as ELI [2], XCELS [3], SEL [4], SULF [5] and Apollon [6], the study of laser-matter interaction in strong electromagnetic fields has been greatly advanced. The development of these lasers is possible due to the chirped pulse amplification [7] which revolutionized the high-intensity laser technology.…”

Section: Introductionmentioning

confidence: 99%

QED effects at grazing incidence on solid-state targets

Filipovic

Pukhov

2022

Eur. Phys. J. D

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New laser facilities will reach intensities of $$10^{23} \text {W cm}^{-2}$$ 10 23 W cm - 2 . This advance enables novel experimental setups in the study of laser–plasma interaction. In these setups with extreme fields, quantum electrodynamic (QED) effects such as photon emission via nonlinear Compton scattering and Breit–Wheeler pair production become important. We study high-intensity lasers grazing the surface of a solid-state target by two-dimensional particle-in-cell simulations with QED effects included. The two laser beams collide at the target surface at a grazing angle. Due to the fields near the target surface, electrons are extracted and accelerated. Finally, the extracted electrons collide with the counter-propagating laser, which triggers many QED effects and leads to a QED cascade under a sufficient laser intensity. Here, the processes are studied for various laser intensities and angle of incidence and finally compared with a seeded vacuum cascade. Our results show that the proposed target can yield many orders of magnitude more secondary particles and develop a QED cascade at lower laser intensities than the seeded vacuum alone.

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13.4 fs, 0.1 Hz OPCPA Front End for the 100 PW-Class Laser Facility

Cited by 44 publications

References 35 publications

Timing fluctuation correction for the front end of a 100-PW laser

Timing fluctuation correction for the front end of a 100-PW laser

Dispersion management for a 100 PW level laser using a mismatched-grating compressor

QED effects at grazing incidence on solid-state targets

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