High Power Laser and Particle Beams, Volume. 34, Issue 3, 031018(2022)
Analysis of thermal effect of high-power semiconductor laser spectral combining grating
Figures & Tables(11)
Fig. 4. Flow chart of high-power semiconductor laser spectrum combining COMSOL implementation
Fig. 7. Variation curves of stress and deformation at the center of diffraction grating with different thickness
Fig. 8. Grating surface deformation in each direction and −1 order diffraction efficiency variation curves
Table 1. Periodic boundary parameters of wire grid unit
View tableView in ArticleTable 1. Periodic boundary parameters of wire grid unit
grating period d/nm microstructure height h/nm microstructure width w/nm air refractive index n0 incident angle θ/(°) 625.0 1725.0 400.0 1.0 θi(i=1,2,3,4,5)
Table 2. Physical parameters of common diffraction grating substrate materials
View tableView in ArticleTable 2. Physical parameters of common diffraction grating substrate materials
material n κ k/[W·(m·K)−1] ρ/kg·m−3 Cp/[J·(kg·K)] α/K−1 E/MPa μ quartz glass 1.508 2.89×10−8 1.38 2203 703 5.5×10−7 7.31×104 0.17 Y3Al5O12 1.816 — 11.06 4551 1582.7 6.94×10−6 2.86×105 0.25 Si(100) 3.579 7.49×10−4 152.46 2330 707.12 2.57×10−6 1.31×105 0.28
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Bowen Fu, Qinnan Zhang, Yong Tian, Jindong Tian. Analysis of thermal effect of high-power semiconductor laser spectral combining grating[J]. High Power Laser and Particle Beams, 2022, 34(3): 031018
Paper Information
Category: Laser Numerical Simulation
Received: Oct. 6, 2021
Accepted: Nov. 11, 2021
Published Online: Mar. 28, 2022
The Author Email: Jindong Tian (jindt@szu.edu.cn)
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