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19 October 2016 Development of slab amplifiers for integration-test-bed
Yuanbin Chen, Jianguo Liu, Yong Liu, Lin Chen, Kuixing Zheng, Xiaofeng Wei, Wanguo Zheng
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Proceedings Volume 10152, High Power Lasers, High Energy Lasers, and Silicon-based Photonic Integration; 101521G (2016) https://doi.org/10.1117/12.2248419
Event: International Symposium on Optoelectronic Technology and Application 2016, 2016, Beijing, China
Abstract
Integration-Test-Bed(ITB) is China's first laser devices with single-beam ten-thousand joules output for Inertial Confinement Fusion (ICF) research. In this paper we describe the development of single-segment slab amplifiers for Integration-Test-Bed (ITB) with 400mm× 400mm aperture. The experiment results shows that the average small signal gain coefficient in 400mm×400mm aperture reach 5.28%/cm with the gain uniformity is about 1.09:1(maximum value/ average value), and up to 1.063:1 (maximum value/ average value) in 360mm×360mm beam-diameter clear aperture. The storage efficiency of system is about 1.47%. The pump-induced wave-front distortion is 5.3λ for the laser beams, which within the correction range of deformable mirror; the thermal recovery time was less than 4 hours. All of this guaranteed the output of 19.6kJ/5ns with wavelength of 1053nm from the Integration-Test-Bed (ITB) device.
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Yuanbin Chen, Jianguo Liu, Yong Liu, Lin Chen, Kuixing Zheng, Xiaofeng Wei, and Wanguo Zheng "Development of slab amplifiers for integration-test-bed", Proc. SPIE 10152, High Power Lasers, High Energy Lasers, and Silicon-based Photonic Integration, 101521G (19 October 2016); https://doi.org/10.1117/12.2248419
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KEYWORDS
Amplifiers
Thermal effects
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