Research on High Power Slab Laser Technology with Dual Doped Concentration

Mi, 李密 Li; Hao, 胡浩 Hu; Chun, 唐淳 Tang; Jun, 雷军 Lei; Dan, 汪丹 Wang; Xiaoming, 陈小明 Chen; Tangjian, 周唐建 Zhou; Jianmin, 李建民 Li; Wenqiang, 吕文强 Lü; Na, 赵娜 Zhao; Yingchen, 邬映臣 Wu

doi:10.3788/aos201636.0914004

Cited by 2 publications

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“…[12][13][14] In the case of slab lasers, the laser beam can travel in a zigzag shape, so the zigzag optical path will homogenize the temperature gradient in the length and thickness direction, greatly reducing the impact of thermal effect on the beam quality. [15][16][17][18] In 2008, Tang et al 19 introduced the concept of surfacegain slabs and, for the first time, also designed surface-gain slabs by comprehensively considering multiple influencing factors such as heat dissipation and effective pump absorption. Meanwhile, this structure takes into account the advantages of the slab and the thin disk and can further exploit the potential of solid-state gain media.…”

Section: Introductionmentioning

confidence: 99%

“…The thin‐disk laser has excellent heat dissipation performance, and the laser transmission direction is consistent with the direction of the internal temperature gradient of the medium, effectively avoiding the influence on the laser wave front 12–14 . In the case of slab lasers, the laser beam can travel in a zigzag shape, so the zigzag optical path will homogenize the temperature gradient in the length and thickness direction, greatly reducing the impact of thermal effect on the beam quality 15–18 …”

Section: Introductionmentioning

confidence: 99%

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Fabrication and properties of novel composite laser ceramics with a surface‐gain structure

et al. 2023

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To suppress heat effects in a high-power laser system, it has been proposed to use a few composite laser gain media to improve the heat management ability. The surface-gain structure has the advantages of both slab and thin-disk configurations, which has huge potential in high-power laser. For the first time, novel composite laser ceramics with surface-gain structure have been fabricated by tape casting and sintering technology. The in-line transmittances of surfacegain ceramics in 1100 and 400 nm are 83.5% and 79.1%, respectively. According to the laser ablation-coupled plasma mass spectrometry, the diffusion distance of Yb 3+ is about 150 µm. The laser experiment yields a low repetition rate pulse of 1.9 J with a pump absorption energy of 11 J and an optical-to-optical conversion efficiency of 17.2%.

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Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Fabrication and properties of novel composite laser ceramics with a surface‐gain structure

et al. 2023

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Fabrication and properties of multistage gradient doping Yb:YAG laser ceramics

et al. 2022

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In order to fully pump and smoothen the temperature gradient of the gain medium, multistage gradient doping Yb:YAG laser ceramics were designed. The composite green bodies were fabricated by tape casting, and multistage gradient doping Yb:YAG ceramics with high optical quality were prepared by vacuum sintering and hot isostatic pressing. For samples pre‐sintered at 1740°C for 30 h and then HIP‐ed at 1700°C for 3 h in argon at 200 MPa, the in‐line transmission values at 1100 nm of YAG, 0.6 at.%Yb:YAG, and 1.5 at.%Yb:YAG ceramics were found to be 83.9%, 84.1%, and 83.3%, respectively. Finally, the 940 nm laser diode was used as the pump source to realize the 1030 nm laser output of multistage gradient doping Yb:YAG ceramic slab with a total energy of 3.43 J. The corresponding optical‐to‐optical conversion and slope efficiencies were 30% and 45%.

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Research on High Power Slab Laser Technology with Dual Doped Concentration

Cited by 2 publications

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Fabrication and properties of novel composite laser ceramics with a surface‐gain structure

Fabrication and properties of novel composite laser ceramics with a surface‐gain structure

Fabrication and properties of multistage gradient doping Yb:YAG laser ceramics

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