Stable ultra-broadband gain spectrum with wide-angle non-collinear optical parametric amplification

Li, Zhaoyang; Tsubakimoto, Koji; Ogino, Jumpei; Guo, Xiaotong; Tokita, Shigeki; Miyanaga, Noriaki; Kawanaka, Junji

doi:10.1364/oe.26.028848

Cited by 5 publications

(3 citation statements)

References 31 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The gain bandwidth broadening in the optical parametric process with a divergent or convergent pump/signal beam has been demonstrated, [138][139][140][141][142] and the mechanism is the same as the multiple-beam pumped OPCPA. In a recent study, as shown in Figure 11a, we shaped the pump from a collimated single [145] Copyright 2021, Springer Nature.…”

Section: Wide-angle Noncollinear Opcpa (Wnopcpa)mentioning

confidence: 93%

“…The gain bandwidth broadening in the optical parametric process with a divergent or convergent pump/signal beam has been demonstrated, [ 138–142 ] and the mechanism is the same as the multiple‐beam pumped OPCPA. In a recent study, as shown in Figure a, we shaped the pump from a collimated single beam into multiple collimated and spatially overlapped beamlets but having individual propagating directions by a “beam homogenizer,” [ 143 ] which consisted of a lens array and a Fourier lens, resulting in several phase‐matching conditions satisfied in a single amplifier.…”

Section: Ultrabroadband Pulse Amplificationmentioning

confidence: 99%

See 1 more Smart Citation

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

Leng

2022

Laser & Photonics Reviews

Self Cite

View full text Add to dashboard Cite

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.

show abstract

Section: Wide-angle Noncollinear Opcpa (Wnopcpa)mentioning

confidence: 93%

Section: Ultrabroadband Pulse Amplificationmentioning

confidence: 99%

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

Leng

2022

Laser & Photonics Reviews

Self Cite

View full text Add to dashboard Cite

show abstract

“…The optimization of the phase-matching is given in Supplementary material. Here, we choose the phase-matching direction with a smaller signal propagation angle (compared with those of two pumps), because the angle-gap between two pump-beamlets is enlarged 54,55 . These parameters together with other parameters are summarized in Table 2.…”

Section: Resultsmentioning

confidence: 99%

Simulating an ultra-broadband concept for Exawatt-class lasers

Kato

Kawanaka

2021

Sci Rep

Self Cite

View full text Add to dashboard Cite

The rapid development of the optical-cycle-level ultra-fast laser technologies may break through the bottleneck of the traditional ultra-intense laser [i.e., Petawatt (PW, 1015 W) laser currently] and enable the generation of even higher peak-power/intensity lasers. Herein, we simulate an ultra-broadband concept for the realization of an Exawatt-class (EW, 1018 W) high peak-power laser, where the wide-angle non-collinear optical parametric chirped-pulse amplification (WNOPCPA) is combined with the thin-plate post-compression. A frequency-chirped carrier-envelope-phase stable super-continuum laser is amplified to high-energy in WNOPCPA by pumping with two pump-beamlets and injected into the thin-plate post-compression to generate a sub-optical-cycle high-energy laser pulse. The numerical simulation shows this hybrid concept significantly enhances the gain bandwidth in the high-energy amplifier and the spectral broadening in the post-compression. By using this concept, a study of a prototype design of a 0.5 EW system is presented, and several key challenges are also examined.

show abstract

Temperature-insensitive broadband optical parametric chirped pulse amplification based on a tilted noncollinear QPM design

Dai

Liang

et al. 2019

Opt. Express

View full text Add to dashboard Cite

Ultrafast pulsed laser of high intensity and high repetition rate is the combined requisite for advancing strong-field physics experiments and calls for the development of thermal-stable ultrafast laser systems. Noncollinear phasing matching (PM) is an effective solution of optimizing the properties of optical parametric chirped pulse amplification (OPCPA) to achieve broadband amplification or to be temperature-insensitive. But as a cost, distinct noncollinear geometries have to be respectively satisfied. In this paper, a noncollinear quasi-phase-matching (QPM) scheme of both temperature- and wavelength-insensitive is presented. With the assistance of the design freedom of grating wave vector, the independent noncollinear-angle requirements can be simultaneously realized in a tilted QPM crystal, and the temperature-insensitive broadband amplification is achieved. Full-dimensional spatial-temporal simulations for a typical 1064 nm pumped mid-IR OPCPA at 3.4 µm are presented in detail. Compared with a mono-functional temperature-insensitive or broadband QPM scheme, the presented QPM configuration shows a common characteristic that simultaneously optimizes the thermal stability and the gain spectrum. Broadband parametric amplification of a ∼40 fs (FWHM) pulsed laser is achieved with no signs of gain-narrowing. Both of the beam profiles and the amplified spectra stay constant while the temperature is elevated by ∼100°C. Finally, influence of the QPM grating errors on the gain spectrum is discussed.

show abstract

Stable ultra-broadband gain spectrum with wide-angle non-collinear optical parametric amplification

Cited by 5 publications

References 31 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

Simulating an ultra-broadband concept for Exawatt-class lasers

Temperature-insensitive broadband optical parametric chirped pulse amplification based on a tilted noncollinear QPM design

Contact Info

Product

Resources

About