Chinese Journal of Lasers, Volume. 45, Issue 8, 801002(2018)
Thermal Analysis of Active Mirror Nd∶LuAG Gain Medium
Figures & Tables(9)
Fig. 7. Heat distribution with peak power pump of 58.5 kW. (a) Simulation; (b) measured by thermal imager
Fig. 8. Wavefront distortion through Hartmann-Shack sensor. (a) Wavefront distortion in total wavefront; (b) wavefront distortion without low order
Table 1. List of simulation parameters
View tableTable 1. List of simulation parameters
Simulation parameter Value Simulation parameter Value Thermal conductivity κ /[W·(m·K)-1]8 Peak pump power P m /kW58.5 Special heat C /[J·(kg·K)-1]411 Pump pulse width τ /μs300 Mass density ρ /[kg·m-3]6730 Pump repetition frequency f p/Hz10 Young modulus E /Pa3×1011 Pump area A /mm235×32 Poisson ratio υ 0.24 Absorb efficiency a /cm-13.1 Thermal expension coefficient α 6.8×10-6 Convection coefficient h /[kW·(m2·K)-1]4 Total power-heat ratio η 0.43 Cooling temperature T c /℃23
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Liu Qiuju, Wang Jianlei, Liu Jing, Li Lei, Chen Rufeng, Shi Xiangchun. Thermal Analysis of Active Mirror Nd∶LuAG Gain Medium[J]. Chinese Journal of Lasers, 2018, 45(8): 801002
Paper Information
Category: laser devices and laser physics
Received: Feb. 26, 2018
Accepted: --
Published Online: Aug. 11, 2018
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