Please use this identifier to cite or link to this item: https://hdl.handle.net/10356/149099
Title: Flat‐top pumped multi‐millijoule mid‐infrared parametric chirped‐pulse amplifier at 10 kHz repetition rate
Authors: Zou, Xiao
Li, Wenkai
Qu, Shizhen
Liu, Kun
Li, Hao
Wang, Qi Jie
Zhang, Ying
Liang, Houkun
Keywords: Engineering::Electrical and electronic engineering::Optics, optoelectronics, photonics
Issue Date: 2021
Source: Zou, X., Li, W., Qu, S., Liu, K., Li, H., Wang, Q. J., Zhang, Y. & Liang, H. (2021). Flat‐top pumped multi‐millijoule mid‐infrared parametric chirped‐pulse amplifier at 10 kHz repetition rate. Laser & Photonics Reviews, 2000292-. https://dx.doi.org/10.1002/lpor.202000292
Project: National Natural Science Foundation of China (NSFC) (62075144)
Science and Engineering Research Council 265 (SERC) (1426500050, 1426500051)
Journal: Laser & Photonics Reviews
Abstract: The advancement of mid-infrared (MIR) parametric amplification technique serves as the main driving force of multiple strong-field experiments in the frontier of science such as the generation of coherent soft X-ray and isolated attosecond pulses. However, the low parametric down-conversion efficiency especially in the MIR wavelength is a major bottleneck that hinders the further exploration of the MIR-laser-driven strong-field physics. Here, a simple and robust method that doubles the efficiency of a MIR optical parametric chirped-pulse amplifier (OPCPA) is reported, as a demonstration of the concept, through engineering a flat-top pump profile via high-efficiency diffractive optical elements. With the proposed flat-top pump scheme, a MIR OPCPA system at 3 𝝁m and 10 kHz repetition rate with both the record pulse energy of 2.7 mJ and the highest average power at 27 W among the MIR OPCPAs with kHz repetition rate is demonstrated. This work provides a promising approach for achieving high energy high power MIR few-cycle lasers that can be readily used in emerging strong field experiments. In addition, it is believed that the developed technique in this work can become a general method of parametric efficiency enhancement, which is applicable to other nonlinear conversions and wavelength ranges.
URI: https://hdl.handle.net/10356/149099
ISSN: 1863-8880
DOI: 10.1002/lpor.202000292
Rights: This is the peer reviewed version of the following article: Zou, X., Li, W., Qu, S., Liu, K., Li, H., Wang, Q. J., Zhang, Y. & Liang, H. (2021). Flat‐top pumped multi‐millijoule mid‐infrared parametric chirped‐pulse amplifier at 10 kHz repetition rate. Laser & Photonics Reviews, 2000292-. https://dx.doi.org/10.1002/lpor.202000292, which has been published in final form at https://doi.org/10.1002/lpor.202000292. This article may be used for non-commercial purposes in accordance with Wiley Terms and Conditions for Use of Self-Archived Versions.
Fulltext Permission: embargo_20220427
Fulltext Availability: With Fulltext
Appears in Collections:EEE Journal Articles

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