Laser Diode End Pumped Nd:YAG Surface Gain Slab Lasers

Yang, 刘洋 Liu; Xiaojun, 唐晓军 Tang; Zhe, 王喆 Wang; Changjie, 吴昌洁 Wu; Hong, 赵鸿 Zhao; Shouhuan, 周寿桓 Zhou

doi:10.3788/cjl201643.1001004

Cited by 3 publications

(2 citation statements)

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“…The popular method of pumping uniformity is planar waveguide uniformity; but to achieve better uniformity, the waveguide is generally longer, and the planar waveguide will reduce the coupling efficiency of the whole system. According to the characteristics of laser diode arrays, the pump beam is uniformly distributed in the direction of its width direction by using a pumped coupling system of image relaying [13].…”

Section: Design Of An Image Relaying Pumped Coupling Systemmentioning

confidence: 99%

4.55 kW LD end-pumped Nd:YAG surface gain slab laser

Yang¹,

Lei²,

Li³

et al. 2018

Laser Phys.

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To improve the laser output power of a single module, we report on a master-oscillator Nd:YAG surface gain slab laser system with up to 4.55 kW of continuous-wave output power. The stable output power of the slab laser is achieved in the plane-parallel resonator with the 4f system. Image relaying along the slow axis is used to obtain the uniform distribution of pumping light in the slab width direction, and the methods of spatial multiplexing and polarization multiplexing are used to increase the density of pump power. The experimental results provided the basis of the optimization of high power slab lasers.

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Section: Design Of An Image Relaying Pumped Coupling Systemmentioning

confidence: 99%

4.55 kW LD end-pumped Nd:YAG surface gain slab laser

Yang¹,

Lei²,

Li³

et al. 2018

Laser Phys.

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“…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. In 2016, Liu et al 20 used bonding technologies for the surface-gain 0.8 at.% Nd:YAG crystal, creating a stable resonator that realized a laser output with single pulse of 121.3 mJ energy at 1064 nm, whereas the corresponding slope efficiency and optical-optical conversion efficiency were 45% and 34.3%, respectively, and the beam quality M 2 factors were 2.5 and 33.5. In 2017, Li et al 21 used a main oscillator power amplifier structure to realize a laser output of surface gain of 2.5 at.% Yb:YAG crystal slab.…”

Section: Introductionmentioning

confidence: 99%

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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