Dr. Xingqiang Lu Profile

Dr. Xingqiang Lu

at Shanghai Institute of Optics and Fine Mechanics

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Publications (6)

Proceedings Article | 11 August 2022 Paper

Improvement of MRAF algorithm based on high energy efficiency for beam shaping

Hui Yu, Jiamei Li, Dawei Li, Qiong Zhou, Fengnian Lv, Xingqiang Lu

Proceedings Volume 12307, 1230705 (2022) https://doi.org/10.1117/12.2643562

KEYWORDS: Energy efficiency, Beam shaping, Laser applications, Fourier transforms

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Proceedings Article | 6 June 2021 Paper

Optimization of disposable debris shield in high-energy PW laser focusing system

Jiamei Li, Hui Yu, Dawei Li, Qiong Zhou, Xingqiang Lu

Proceedings Volume 11849, 1184903 (2021) https://doi.org/10.1117/12.2599130

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Proceedings Article | 23 February 2017 Presentation + Paper

High power glass laser research progresses in NLHPLP

Jianqiang Zhu, Jian Zhu, Xuechun Li, Baoqiang Zhu, Weixin Ma, Dean Liu, Cheng Liu, Xingqiang Lu, Wei Fan, Zhigang Liu, Dongfeng Zhao, Shenlei Zhou, Yanli Zhang, Li Wang, Mingying Sun, Bingyan Wang, Zhaoyang Jiao, Lei Ren, Guowen Zhang, Jie Miao, Zunqi Lin

Proceedings Volume 10084, 1008405 (2017) https://doi.org/10.1117/12.2251731

KEYWORDS: High power lasers, Optical amplifiers, Fusion energy, Laser damage threshold, Glasses, Laser glasses, Physics, Laser development, Prototyping, Near field, Spatial filters, Modulation

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A new high power laser facility with 8 beams and maximum output energy of one beam 5kJ/3.4ns/3ω has been performed and operated since 2015. Combined together the existing facilities have constructed a multifunction experimental platform including multi-pulse width of ns, ps and fs and active probing beam, which is an effective tool for Inertial Confinement Fusion (ICF) and High Energy Density (HED) researches. In addition another peculiar high power laser prototype pushes 1ω maximum output energy to 16kJ in 5ns and 17.5kJ in 20ns in flat-in-time pulse, this system is based on large aperture four-pass main amplifier architecture with 310mm×310mm output beam aperture. Meanwhile the near field and far field have good quality spanning large energy scope by use of a wide range of technologies, such as reasonable overall design technique, the integrated front end, cleanness class control, nonlinear laser propagation control, wave-front adaptive optics and precision measurement. Based on this excellent backup, 3ω damage research project is planning to be implemented. To realize the above aims, the beam expanding scheme in final transport spatial filter could be adopted considering tradeoff between the efficient utilization of 1ω output and 3ω damage threshold. Besides for deeply dissecting conversion process for beam characteristic influence of 1ω beam, WCI (Wave-front Code Image) instrument with refined structure would be used to measure optical field with simultaneous high precision amplitude and phase information, and what’s more WCI can measure the 1ω, 2ω and 3ω optical field in the same time at same position, so we can analyze the 3ω beam quality evolution systematically, and ultimately to improve the 3ω limited output.

In a word, we need pay attention to some aspects contents with emphasis for future huger laser facility development. The first is to focus the new technology application. The second is to solve the matching problem between 1ω beam and the 3ω beam. The last is to build the whole effective design in order to improve efficiency and cost performance.

Proceedings Article | 14 July 2015 Paper

Relationship between large-aperture optical components of striated surface shape and focal spot characteristics in the far-field

Zemin Lei, Xiaoyan Sun, Xianhua Yin, Fengnian Lv, Zhen Zhang, Xingqiang Lu, Dianyuan Fan

Proceedings Volume 9532, 95321M (2015) https://doi.org/10.1117/12.2185524

KEYWORDS: Modulation, Optical components, Diffraction, High power lasers, Phase modulation, Laser beam propagation, Optical simulations, Laser processing, Shape analysis, Spatial filters

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Proceedings Article | 14 July 2015 Paper

Mechanism study of initial filamentary damage in optical components owing to surface contamination particles

Xiaoyan Sun, Zemin Lei, Xingqiang Lu, Dianyuan Fan

Proceedings Volume 9532, 953216 (2015) https://doi.org/10.1117/12.2185409

KEYWORDS: Particles, Modulation, Contamination, Liquids, High power lasers, Solids, Diffraction, Optical components, Near field, Phase shift keying

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Proceedings Article | 17 November 2010 Paper

A potential approach to ~10fs, >2 petawatt pulses by hybrid laser based on Ti:chrysoberyl and Ti:sapphire

Huabao Cao, Xingqiang Lu, Dianyuan Fan

Proceedings Volume 7843, 78431A (2010) https://doi.org/10.1117/12.869069

KEYWORDS: Amplifiers, Sapphire lasers, Polarization, Crystals, Optical amplifiers, Pulsed laser operation, Optical simulations, Laser crystals, Femtosecond phenomena, Luminescence

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Showing 5 of 6 publications

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