Optical modification of nonlinear crystals for quasi-parametric chirped-pulse amplification

Qian Lin ¹Jingui Ma ¹Zhe Yin ¹Peng Yuan ¹Jing Wang ¹Guoqiang Xie ¹Liejia Qian²

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作者信息

1. Key Laboratory for Laser Plasmas(MOE),Collaborative Innovation Center of IFSA,School of Physics and Astronomy,Shanghai Jiao Tong University,Shanghai 200240,China
2. Key Laboratory for Laser Plasmas(MOE),Collaborative Innovation Center of IFSA,School of Physics and Astronomy,Shanghai Jiao Tong University,Shanghai 200240,China;Tsung-Dao Lee Institute,Shanghai Jiao Tong University,Shanghai 200240,China
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Abstract

Quasi-parametric chirped-pulse amplification(QPCPA),which features a theoretical peak power much higher than those obtained with Ti:sapphire laser or optical parametric chirped-pulse amplification,is promising for future ultra-intense lasers.The doped rare-earth ion used for idler dissipation is critical for effective QPCPA,but is usually not compatible with traditional crystals.Thus far,only one dissipative crystal of Sm3+-doped yttrium calcium oxyborate has been grown and applied.Here we introduce optical means to modify traditional crystals for QPCPA applications.We theoretically demonstrate two dissipation schemes by idler frequency doubling and sum-frequency generation with an additional laser.In contrast to absorption dissipation,the proposed nonlinear dissipations ensure not only high signal efficiency but also high small-signal gain.The demonstrated ability to optically modify crystals will facilitate the wide application of QPCPA.

Key words

Quasi-parametric amplifier/Second-harmonic generation/Sum-frequency generation/Back conversion/Idler dissipation

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基金项目

国家自然科学基金(62122049)

国家自然科学基金(61975120)

国家自然科学基金(62375165)

国家自然科学基金(91850203)

Shanghai Rising-Star Program(21QA1404600)

sponsorship from Yangyang Development Fund()

出版年

2024

自然科学基础研究(英文)

CSTPCD

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参考文献量30

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