High-repetition-rate and high-power picosecond regenerative amplifier based on a single bulk Nd:GdVO4 crystal

Guo, Jie; Wang, Wei; Lin, Hua; Liang, Xiaoyan

doi:10.1017/hpl.2019.16

Cited by 5 publications

(2 citation statements)

References 48 publications

(72 reference statements)

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“…Combining the balanced performances in all kinds of field with a thin-disk geometry, Yb:YAG thin disk lasers could generate high-energy, high-power, and ultrashort pulses while keeping the repetition rate above several hundred kilohertz. Among various setups, regenerative amplifiers (RAs) are routinely used to boost the output of mode-locked oscillators due to their high gains of several orders of magnitude and a resonator structure to support good spatial quality [7][8][9][10]. In 2016, Krausz.…”

Section: Introductionmentioning

confidence: 99%

Numerical and Experimental Analysis of Yb:YAG Thin Disk Regenerative Amplifier

et al. 2021

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We present an numerical and experimental analysis of a Yb:YAG thin disk regenerative amplifier. Group velocity dispersion, third order dispersion, and self-phase modulation (SPM) effects are considered in the simulations of the amplification process. By virtue of the simulations, a compact femtosecond Yb:YAG thin-disk chirped-pulse regenerative amplifier delivering an average power of 50 W at a central wavelength of 1030 nm with a propagation factor of M 2 < 1.4 at a repetition rate of 200 kHz and a pulse duration of 500 fs was constructed. Numerical simulation based on this Yb:YAG thin-disk was carried out to investigate the pulse parameters evolution in each round trip. The measured experimental results in pulse width, spectrum, and pulse energy together fitted quite well with the numerical simulation. This plays an important role in the design of high-peak-power regenerative amplifier and will facilitate further power scaling and suppression of gain narrowing of the whole system.

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Section: Introductionmentioning

confidence: 99%

Numerical and Experimental Analysis of Yb:YAG Thin Disk Regenerative Amplifier

et al. 2021

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“…Rare earth doped gadolinium vanadate crystal (GdVO 4 : RE) is considered as an excellent luminescent material because of its excellent chemical stability, high thermal conductivity, strong energy absorption, and high energy transfer efficiency [7,8]. GdVO 4 : Tb can effectively improve the PL intensity and transfer excitation wavelength of Tb 3+ due to its efficient absorption of ultraviolet light and energy transfer (ET) from Gd 3+ and VO 4 3− to Tb 3+ , so as to expand the application of Tb 3+ luminescent materials [9,10].…”

Section: Introductionmentioning

confidence: 99%

Luminescence Behavior of GdVO4: Tb Nanocrystals in Silica Glass-Ceramics

Han

Tao

et al. 2020

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Glass ceramics with GdVO4: Tb nanocrystals impregnated in the highly transparent silica glass were prepared by the porous glass and sintering process and confirmed by XRD, Raman spectrum, and TEM. Spectral analysis shows that there are multifarious energy transfer processes in GdVO4: Tb nanocrystals, such as VO43− → Tb3+, Gd3+ → VO43−, Gd3+ → VO43− → Tb3+, and Gd3+ → Tb3+, and the main one is VO43− → Tb3+. In this process, 3T1,2 → 1A1 transition of VO43− transfers the energy to Tb3+ and generates 5D3 → 7F6,5,4,3,2 and 5D4 → 7F5 transitions of Tb3+. The energy transfer efficiency is 29.5%, and the excitation wavelength range of Tb3+ ions can be shifted from 230–260 nm to 280–365 nm. This shows that GdVO4 can effectively change the excitation wavelength of Tb3+, which is conducive to the application of Tb3+ ions excited by LED light sources.

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