• Infrared and Laser Engineering
  • Vol. 51, Issue 9, 20210966 (2022)
Yueting Zhang1、2, Yi Tan1、2, Jihong Wang1、2, Qi Peng1、2, and Zhikun Yang1、2
Author Affiliations
  • 1Key Laboratory of Optical Engineering, Chinese Academy of Sciences, Chengdu 610209, China
  • 2Institute of Optics and Electronics, Chinese Academy of Sciences, Chengdu 610209, China
  • show less
    DOI: 10.3788/IRLA20210966 Cite this Article
    Yueting Zhang, Yi Tan, Jihong Wang, Qi Peng, Zhikun Yang. Influence of solid-gas coupling thermal effect caused by stray light from laser window on beam quality[J]. Infrared and Laser Engineering, 2022, 51(9): 20210966 Copy Citation Text show less
    Irradiation diagram of window reflected stray light
    Fig. 1. Irradiation diagram of window reflected stray light
    Simplified model of round pipe
    Fig. 2. Simplified model of round pipe
    Numerical simulation of discretization model
    Fig. 3. Numerical simulation of discretization model
    Temperature contour of pipe wall(a), and section(b), temperature cloud chart(c)
    Fig. 4. Temperature contour of pipe wall(a), and section(b), temperature cloud chart(c)
    OPD (a) and Zernike coefficients (b) of pipe outlet
    Fig. 5. OPD (a) and Zernike coefficients (b) of pipe outlet
    Temperature changing curve of different aluminum pipes
    Fig. 6. Temperature changing curve of different aluminum pipes
    Comparison of influence of different structures on temperature rise of pipe wall
    Fig. 7. Comparison of influence of different structures on temperature rise of pipe wall
    ΔT (a) and RMS of OPD (b) change curves with aluminum pipe thicknesses at t=30 s
    Fig. 8. ΔT (a) and RMS of OPD (b) change curves with aluminum pipe thicknesses at t=30 s
    Temperature rise changing curves of three materials with equal thickness
    Fig. 9. Temperature rise changing curves of three materials with equal thickness
    Temperature rise changing curves of three materials with equal mass
    Fig. 10. Temperature rise changing curves of three materials with equal mass
    ΔT changing curves of three materials with equal mass
    Fig. 11. ΔT changing curves of three materials with equal mass
    Ray tracing results of 8 mm (a) and 16 mm (b) thickness pipe
    Fig. 12. Ray tracing results of 8 mm (a) and 16 mm (b) thickness pipe
    Zernike coefficient of OPD in the outlet of 8 mm/16 mm pipe
    Fig. 13. Zernike coefficient of OPD in the outlet of 8 mm/16 mm pipe
    MaterialDensity/ kg·m−3Cp/J·kg−1·℃−1Heat conductivity/ W·m−1·℃−1
    Aluminium2700880237
    Copper8900390383
    Steel803050216
    Carbon fiber1500800800
    Table 1. Material property
    Thickness/mmMaterial & structureWave aberration in the 300 mm rangeβ
    PV/nmRMS/nm
    OriginalWithout piston and tiltOriginalWithout piston and tilt
    8Aluminium436.2186.534.917.61.0665
    16Aluminium33912321.411.51.0229
    8Aluminium+outside fins410.2213.930.121.21.0370
    8Aluminium+1 mm carbon film410.6152.833.115.11.0556
    8Copper379.3141.828.713.41.0415
    8Steel404.8188.430.216.51.0461
    2.4Copper624.8327.358.832.21.1863
    2.7Steel638.0399.354.935.21.1606
    Table 2. PV & RMS of wave aberration in the pipe outlet
    Yueting Zhang, Yi Tan, Jihong Wang, Qi Peng, Zhikun Yang. Influence of solid-gas coupling thermal effect caused by stray light from laser window on beam quality[J]. Infrared and Laser Engineering, 2022, 51(9): 20210966
    Download Citation