Technology development for ultraintense all-OPCPA systems

Bromage, J.; Bahk, S.-W.; Begishev, I. A.; Dorrer, C.; Guardalben, M. J.; Hoffman, Brittany N.; Oliver, J. B.; Roides, R. G.; Schiesser, Eric M.; Shoup, M. J.; Spilatro, M.; Webb, Benjamin; Weiner, D.; Zuegel, J. D.

doi:10.1017/hpl.2018.64

Cited by 134 publications

(74 citation statements)

References 39 publications

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“…A two-stage focusing scheme with an f /4.6 off-axis parabola and an ellipsoidal plasma mirror has been proposed for achieving intensities greater than 10 23 W/cm 2 . The technical challenges facing EP-OPAL are being addressed in a prototype system, MTW-OPAL, which is a 0.5 PW facility currently under construction to deliver 7.5 J, 15 fs pulses to target using the same all-OPCPA platform [163] . The primary challenges being developed are, ranked by difficulty:…”

Section: Ultra-high-power Developmentmentioning

confidence: 99%

“…A two-stage focusing scheme with an off-axis parabola and an ellipsoidal plasma mirror has been proposed for achieving intensities greater than . The technical challenges facing EP-OPAL are being addressed in a prototype system, MTW-OPAL, which is a 0.5 PW facility currently under construction to deliver 7.5 J, 15 fs pulses to target using the same all-OPCPA platform [163] . The primary challenges being developed are, ranked by difficulty:Advanced gratings; large-aperture DKDP; specialized optical coatings for large-aperture mirrors.Wavefront control, adaptive optics, and two-stage focusing to maximize focused intensity.Ultra-short-pulse laser diagnostics and broadband dispersion control.Laser subsystem development including broadband front end and OPA gain adjustment.…”

Section: Future Technologiesmentioning

confidence: 99%

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Petawatt and exawatt class lasers worldwide

Danson

Haefner

Bromage

et al. 2019

High Pow Laser Sci Eng

781

406

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In the 2015 review paper ‘Petawatt Class Lasers Worldwide’ a comprehensive overview of the current status of high-power facilities of ${>}200~\text{TW}$ was presented. This was largely based on facility specifications, with some description of their uses, for instance in fundamental ultra-high-intensity interactions, secondary source generation, and inertial confinement fusion (ICF). With the 2018 Nobel Prize in Physics being awarded to Professors Donna Strickland and Gerard Mourou for the development of the technique of chirped pulse amplification (CPA), which made these lasers possible, we celebrate by providing a comprehensive update of the current status of ultra-high-power lasers and demonstrate how the technology has developed. We are now in the era of multi-petawatt facilities coming online, with 100 PW lasers being proposed and even under construction. In addition to this there is a pull towards development of industrial and multi-disciplinary applications, which demands much higher repetition rates, delivering high-average powers with higher efficiencies and the use of alternative wavelengths: mid-IR facilities. So apart from a comprehensive update of the current global status, we want to look at what technologies are to be deployed to get to these new regimes, and some of the critical issues facing their development.

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Section: Ultra-high-power Developmentmentioning

confidence: 99%

Section: Future Technologiesmentioning

confidence: 99%

Petawatt and exawatt class lasers worldwide

Danson

Haefner

Bromage

et al. 2019

High Pow Laser Sci Eng

781

406

View full text Add to dashboard Cite

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“…A single-shot 4.9 PW femtosecond laser system, based on low-energy picosecond OPCPA in BBO crystals and highenergy nanosecond OPCPA in large lithium triborate (LBO) crystals in the 800 nm spectral bandwidth, with less than 20 fs amplified pulse duration and high-intensity contrast, has been reported [12] . A couple of 100 PW femtosecond laser projects, based on high-energy noncollinear OPCPA in halfmeter size DKDP crystals are currently being proposed [29,30] . They take advantage of the broad parametric gain bandwidth of DKDP crystals centered near 920 nm signal wavelength.…”

Section: Introductionmentioning

confidence: 99%

High-energy hybrid femtosecond laser system demonstrating 2 × 10 PW capability

Lureau

Matras

Chalus

et al. 2020

High Pow Laser Sci Eng

149

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We report on a two-arm hybrid high-power laser system (HPLS) able to deliver 2 × 10 PW femtosecond pulses, developed at the Bucharest-Magurele Extreme Light Infrastructure Nuclear Physics (ELI-NP) Facility. A hybrid front-end (FE) based on a Ti:sapphire chirped pulse amplifier and a picosecond optical parametric chirped pulse amplifier based on beta barium borate (BBO) crystals, with a cross-polarized wave (XPW) filter in between, has been developed. It delivers 10 mJ laser pulses, at 10 Hz repetition rate, with more than 70 nm spectral bandwidth and high-intensity contrast, in the range of 1013:1. The high-energy Ti:sapphire amplifier stages of both arms were seeded from this common FE. The final high-energy amplifier, equipped with a 200 mm diameter Ti:sapphire crystal, has been pumped by six 100 J nanosecond frequency doubled Nd:glass lasers, at 1 pulse/min repetition rate. More than 300 J output pulse energy has been obtained by pumping with only 80% of the whole 600 J available pump energy. The compressor has a transmission efficiency of 74% and an output pulse duration of 22.7 fs was measured, thus demonstrating that the dual-arm HPLS has the capacity to generate 10 PW peak power femtosecond pulses. The reported results represent the cornerstone of the ELI-NP 2 × 10 PW femtosecond laser facility, devoted to fundamental and applied nuclear physics research.

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“…A crucial factor for the success of these laser-matter interaction studies is the laser intensity at focus. Focused intensity as high as 10 22 W/cm 2 has been realized in several multi-hundred terawatt (TW) and petawatt (PW) femtosecond lasers [4][5][6][7], and 10 23 W/cm 2 will probably be realized in 10 PW-level lasers in the near future [8,9]. In a typical high-peak-power femtosecond laser system, the lens-based telescopes are generally employed, which generate pulse front distortion (PFD) because of the dispersion effect of large spectral bandwidth [10][11][12].…”

Section: Introductionmentioning

confidence: 99%

Directly Measuring the Pulse Front Distortion of High-Peak-Power Femtosecond Lasers

Zhang

Yang

et al. 2020

Applied Sciences

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Pulse front distortion occurring in lenses can broaden the temporal profile of the pulse at focus and therefore decrease the focused intensity, especially for large-aperture femtosecond lasers. A previously proposed self-reference cross correlator was improved to directly measure the pulse front distortion of high-peak-power femtosecond lasers. The measured results of a 200 TW/27 fs laser are in good accordance with the calculated value. Moreover, the temporal intensity distribution of the pulse in the focal region was also investigated, in order to better guide and further promote the strong laser-matter interaction investigations. According to the measured PFD, the effective pulse duration at far field of this 200 TW laser was theoretically simulated to be ≈49 fs, which is almost two times the generally regarded 27 fs. As a result, the actually available focused intensity of this laser is only 55% of the case without pulse front distortion.

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Technology development for ultraintense all-OPCPA systems

Cited by 134 publications

References 39 publications

Petawatt and exawatt class lasers worldwide

Petawatt and exawatt class lasers worldwide

High-energy hybrid femtosecond laser system demonstrating 2 × 10 PW capability

Directly Measuring the Pulse Front Distortion of High-Peak-Power Femtosecond Lasers

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