Gain degeneration and maintance project of 400 mm aperture disk amplifier

Liu Yong; Wu Wenlong; Chen Wenqi; Lin Donghui; Xiong Qian; Wang Lin; Wang Zhenguo; Chen Lin

doi:10.11884/HPLPB202335.220363

Volume 35 Issue 9

Sep. 2023

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Liu Yong, Wu Wenlong, Chen Wenqi, et al. Gain degeneration and maintance project of 400 mm aperture disk amplifier[J]. High Power Laser and Particle Beams, 2023, 35: 092001. doi: 10.11884/HPLPB202335.220363

Citation:

Liu Yong, Wu Wenlong, Chen Wenqi, et al. Gain degeneration and maintance project of 400 mm aperture disk amplifier[J]. High Power Laser and Particle Beams, 2023, 35: 092001. doi: 10.11884/HPLPB202335.220363

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Gain degeneration and maintance project of 400 mm aperture disk amplifier

doi: 10.11884/HPLPB202335.220363

Laser Fusion Research Center, CAEP, Mianyang 621900, China

Received Date: 2023-01-09
Accepted Date: 2023-08-15
Rev Recd Date: 2023-08-10

Available Online: 2023-08-16

Publish Date: 2023-09-15

Abstract

Abstract

One of the main problems occur during inertial confinement fusion (ICF) laser facility’s long-term operation is the gain degeneration of the 400 mm aperture slab amplifier,which will affect the output of the facility and the laser beam quality. A study on gain degeneration causing by several factors was carried out and a normalization theory model from all the factors has been built. The test was accomplished on two groups of 400 mm aperture, 4×2 composition multi-segment slab amplifier with each group includes 9 slabs. The gain degenerating rate was about 10.2% after 10 years, 3 000 shots of work which is in accordance with the theoretical predication. A maintance project for the large aperture slab amplifier has been drawn up to keep the gain degeneration less than 1.5% during long-term operation of the ICF facility.
- inertial confinement fusion,
- slab amplifier,
- gain degenerate,
- maintance

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References(8)

References

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