Nd : glass rod laser with an output energy of 500 J

Shaykin, A. A.; Kuzmin, A. D.; Shaikin, Ilya; Burdonov, K.; Хазанов, Е. А.

doi:10.1070/qel16052

Cited by 6 publications

(2 citation statements)

References 4 publications

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“…Both the energy and the pulse repetition rate at the output of the OPCPA are determined by the respective parameters of the pump laser, and here a compromise is required between the repetition rate and energy, which, in turn, are determined by the active elements used. Three options can be distinguished: lamp-pumped neodymium glass rod lasers [ 62 , 63 ] , lamp-pumped neodymium glass active mirrors [ 64 ] and diode-pumped Yb:YAG cryogenic disk lasers [ 65 ] . These options differ from each other by two orders of magnitude in terms of the pulse repetition rate (Table 3).…”

Section: Exawatt Center For Extreme Light Studies Lasermentioning

confidence: 99%

“…In Ref. [63], an output energy of 500 J was obtained upon amplifying two successive pulses with a duration of 1 ns. Thus, at a pulse duration of 3.5 ns, the laser will have an almost twofold margin in terms of damage resistance, and the antireflection coating of the amplifier rods will increase the energy to 550 J.…”

Section: Exawatt Center For Extreme Light Studies Lasermentioning

confidence: 99%

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eXawatt Center for Extreme Light Studies

Khazanov,

Shaykin,

Kostyukov

et al. 2023

High Pow Laser Sci Eng

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The eXawatt Center for Extreme Light Studies project aimed to create a large scientific infrastructure based on lasers with giant peak power. The project relies on the significant progress achieved in the last decade. The planned infrastructure will incorporate a unique light source with a pulse power of 600 PW using optical parametric chirped pulse amplification in large-aperture KD 2 PO 4 , deuterated potassium dihydrogen phosphate crystals. The interaction of such laser radiation with matter represents a completely new fundamental physics. The direct study of the space-time structure of vacuums and other unknown phenomena at the frontier of high-energy physics and the physics of superstrong fields will be challenged. Expected applications will include the development of compact particle accelerators, the generation of ultrashort pulses of hard X-ray and gamma radiation for material science enabling one to probe material samples with unprecedented spatial and temporal resolution, the development of new radiation and particle sources, etc. The paper is translation from Russian [Kvantovaya Elektronika 53, 95 (2023)].

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Section: Exawatt Center For Extreme Light Studies Lasermentioning

confidence: 99%

Section: Exawatt Center For Extreme Light Studies Lasermentioning

confidence: 99%

eXawatt Center for Extreme Light Studies

Khazanov,

Shaykin,

Kostyukov

et al. 2023

High Pow Laser Sci Eng

View full text Add to dashboard Cite

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Pulse energy limitation of high-power nanosecond lasers due to plasma production in spatial filters

Kuzmin¹,

Хазанов²,

Shaykin³

2021

Quantum Electron.

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For a neodymium glass laser, which is used to pump the parametric amplifier of the PEARL facility, we investigate the problem of filling the pinholes of vacuum spatial filters with plasma resulting from the ablation of the pinhole surface by laser radiation. The time of plasma expansion is measured and the causes of its appearance are determined, among which the main ones are the spherical aberrations of the lenses of spatial filters, which increase the intensity at the pinhole edges. With the total spherical aberration of the spatial filters, which lowers the Strehl number to 0.15, two nanosecond pulses with energies of 130 – 140 J, delayed relative to each other by 1.8 ns and freely passing through the final spatial filter, are generated on the PEARL facility.

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Design of the front-end system for a subexawatt laser of the XCELS facility

Mukhin¹,

Soloviev²,

Perevezentsev³

et al. 2021

Quantum Electron.

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A concept of the front-end system of the XCELS (eXawatt Center for Extreme Light Studies) facility is presented. Its design is aimed at achieving high stability of laser radiation parameters and possibility of their control in a wide range. Optically synchronised chirped signal (wavelength 910 nm, bandwidth more than 100 nm, and duration ∼3 ns) and pump (wavelength 1054 nm, bandwidth ∼1 nm, and duration ∼4 ns) pulses for XCELS parametric amplifiers will be implemented at the output of the front-end system. Chirped femtosecond pulses with energies above 100 mJ [no more than 15 fs long after compression, with carrier-envelope phase (CEP) stabilisation] will have a repetition rate up to 100 Hz, which will allow one to implement active energy stabilisation and to minimise the angular jitter of the emitted beam at the XCELS output. The application of picosecond pumping in the parametric amplifier of the front-end system should provide a high contrast of femtosecond pulses. The pump pulse will be linearly frequency-modulated; this approach will not affect the parametric amplification efficiency but make it possible to use spectral methods to control the pump pulse shape in order to form a pulse of specified shape at the output of power amplifiers, even under conditions of their strong saturation.

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Nd : glass rod laser with an output energy of 500 J

Cited by 6 publications

References 4 publications

eXawatt Center for Extreme Light Studies

eXawatt Center for Extreme Light Studies

Pulse energy limitation of high-power nanosecond lasers due to plasma production in spatial filters

Design of the front-end system for a subexawatt laser of the XCELS facility

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