Experimental demonstration of five-beam-pumped optical parametric amplification

Mennerat, Gabriel; Trophème, Benoît; Boulanger, Benoı̀t

doi:10.1364/ol.38.003319

Cited by 12 publications

(2 citation statements)

References 15 publications

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“…We then introduce different pump beams' (different angles but same wavelength) produced ultrabroadband OPCPA, [117][118][119][120][121][122][123][124][125] and we call it the multiple-beam pumped OPCPA. [118,120,121,124] Figure 10a shows the schematic of the single-stage multiple-beam pumped OPCPA, and two pump beams with different propagation angles are used to realize two phase-matching conditions to simultaneously amplify two spectral components of the signal beam for ultrabroadband amplification.…”

Section: Multiple-beam Pumped Opcpamentioning

confidence: 99%

Further Development of the Short‐Pulse Petawatt Laser: Trends, Technologies, and Bottlenecks

Leng

2022

Laser & Photonics Reviews

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The petawatt (PW) laser has experienced a rapid development in the past two decades, and tens of giant facilities have been constructed worldwide. After realizing 10–100 PW, it seems to be close to some sort of engineering limit but its focused peak intensity still is much lower than the Schwinger limit, and therefore some technology improvements or innovations become indispensable for further increasing the peak power as well as the focused peak intensity. By quick reviewing the development of the PW laser in history, it is shown that reducing the pulse duration to near a single optical cycle is a feasible (easy and cheap) choice for this purpose. Here, technologies for the optical‐cycle pulse generation, ultrabroadband amplification, and capability boosting that aim to provide possible approaches for optical‐cycle PW lasers are briefly reviewed and discussed. Meanwhile, key bottlenecks that challenge the current as well as the future short‐pulse PW lasers and their possible solutions are summarized and discussed. This technology review aims to provide a possible roadmap for the next‐stage development of the short‐pulse PW laser.

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Section: Multiple-beam Pumped Opcpamentioning

confidence: 99%

Further Development of the Short‐Pulse Petawatt Laser: Trends, Technologies, and Bottlenecks

Leng

2022

Laser & Photonics Reviews

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“…It is possible to use multiple pump beams to pump a single nonlinear crystal and each beam amplifies a slightly different part of the signal spectrum. This is called multibeam pumping [127][128][129][130], and it has been demonstrated both theoretically and experimentally that it can significantly increase the OPA bandwidth [131][132][133][134][135]. When this technique is applied, energy losses caused by parametric diffraction [136][137][138] have to be taken into account.…”

Section: Techniques For Improving Opcpa Bandwidthmentioning

confidence: 99%

Optimization of high peak power few-cycle optical parametric chirped pulse amplifier systems

Tóth

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OPCPA systems are capable of delivering high peak and average power pulses, consisting of only a few oscillation cycles of the electric field. The development of these systems are motivated by attosecond pulse generation and the examination of ultrafast physical processes. During my work I was using a 4D numerical code for the modelleding of OPCPA. I have examined a few OPA arrangements, which can increase the efficiency of the amplification process and the bandwidth of the amplified pulses. I have numerically optimized the OPCPA of the ELI-ALPS SYLOS system and carried out a comparative study of a mid-IR OPCPA system.

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Optical Parametric Amplification in Crossed Fabry‐Perot Cavities

Sun,

Xie,

Zhu

et al. 2024

Laser & Photonics Reviews

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Optical parametric amplification (OPA) is a promising method of producing extremely intense light. A new OPA scheme with comprehensively high performance is urgently required for future development. In this study, an amplification scheme known as crossed‐Fabry‐Perot‐cavity OPA (XOPA) is proposed. It is based on the principle of periodic idler elimination, which prevents energy back‐conversion among the three coupling waves, resulting in a monotonically increasing overall conversion efficiency. Using a signal at 808 nm and a pump at 532 nm, a chirped pulse XOPA is experimentally demonstrated with a conversion efficiency of 56.28% and a gain bandwidth of 120 nm. The measured pulse duration after compression is 19.2 fs, which is comparable to the Fourier‐transform‐limited 16.8 fs. Further investigations revealed several advantages. Stable pulse shaping in spatial, temporal, and frequency domains is realized by a spatiotemporally modulated pump. Pulse contrast adjustability on the front edge of the signal is verified in the XOPA of different Fabry‐Perot cavity lengths. These results indicate astringency and precise regulation of output in nonlinear processes. Considering numerous crystals suitable for noncollinear configurations from the near‐infrared to mid‐infrared regions, XOPA has a universal potential application in laser systems with extreme intensity, few‐cycle duration, and internal confinement fusion drivers.

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Experimental demonstration of five-beam-pumped optical parametric amplification

Cited by 12 publications

References 15 publications

Further Development of the Short‐Pulse Petawatt Laser: Trends, Technologies, and Bottlenecks

Further Development of the Short‐Pulse Petawatt Laser: Trends, Technologies, and Bottlenecks

Optimization of high peak power few-cycle optical parametric chirped pulse amplifier systems

Optical Parametric Amplification in Crossed Fabry‐Perot Cavities

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