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Acta Optica Sinica, Volume. 44, Issue 6, 0614001(2024)

Performance of Short Micro-Cavity Structure for Underwater Fiber Nanosecond Laser Propulsion

Yang Ge1, Hanyang Li2、*, Hongtao Wang1,3, Xianqi Tang1, Gaoqian Zhou2, and Xulong Yang2
Author Affiliations
  • 1College of Mechanical and Electrical Engineering, Harbin Engineering University, Harbin 150001, Heilongjiang , China
  • 2College of Physics and Optoelectronic Engineering, Harbin Engineering University, Harbin 150001, Heilongjiang , China
  • 3Engineering Technology Department, Harbin Aircraft Industry Group Co., Ltd., Harbin 150066, Heilongjiang , China
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    AbstractGet PDF(in Chinese)
    Figures&Tables (21)
    Equations (0)
    References (33)
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    Figures & Tables(21)
    Schematic diagram of underwater fiber laser propulsion

    Fig. 1. Schematic diagram of underwater fiber laser propulsion

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    Input/output model of numerical simulation

    Fig. 2. Input/output model of numerical simulation

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    Change curves of thrust and impulse coupling coefficient of microsphere particles at different focus positions. (a) Thrust curve; (b) impulse coupling coefficient change

    Fig. 3. Change curves of thrust and impulse coupling coefficient of microsphere particles at different focus positions. (a) Thrust curve; (b) impulse coupling coefficient change

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    0.2 μs flow field

    Fig. 4. 0.2 μs flow field

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    Schematic diagram of laser propulsion in short microcavity structure

    Fig. 5. Schematic diagram of laser propulsion in short microcavity structure

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    Detonation wave pressure flow field of microcavity structures with different length at 0.5 μs. (a) 60 μm; (b) 75 μm; (c) 90 μm; (d) 100 μm

    Fig. 6. Detonation wave pressure flow field of microcavity structures with different length at 0.5 μs. (a) 60 μm; (b) 75 μm; (c) 90 μm; (d) 100 μm

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    Thrust curves and impulse coupling coefficients under different microcavity lengths. (a) Thrust curves; (b) impulse coupling coefficient

    Fig. 7. Thrust curves and impulse coupling coefficients under different microcavity lengths. (a) Thrust curves; (b) impulse coupling coefficient

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    Cloud images of pressure flow field of microspheres with different cavity diameters at 0.5 μs. (a) 20 μm; (b) 30 μm; (c) 40 μm

    Fig. 8. Cloud images of pressure flow field of microspheres with different cavity diameters at 0.5 μs. (a) 20 μm; (b) 30 μm; (c) 40 μm

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    Efficiency parameters of laser propulsion under different microcavity diameters. (a) Thrust curves; (b) impulse coupling coefficient

    Fig. 9. Efficiency parameters of laser propulsion under different microcavity diameters. (a) Thrust curves; (b) impulse coupling coefficient

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    Schematic diagram of U-shaped microcavity structure propulsion

    Fig. 10. Schematic diagram of U-shaped microcavity structure propulsion

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    Pressure flow field diagrams of U-shaped microcavity structure at different time. (a) 0.1 μs; (b) 0.3 μs; (c) 0.5 μs; (d) 0.8 μs

    Fig. 11. Pressure flow field diagrams of U-shaped microcavity structure at different time. (a) 0.1 μs; (b) 0.3 μs; (c) 0.5 μs; (d) 0.8 μs

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    Stress curves of microsphere particles in U-shaped and rectangular microcavity structures

    Fig. 12. Stress curves of microsphere particles in U-shaped and rectangular microcavity structures

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    Detonation wave pressure flow field under double-tube microcavity at different time. (a) 0.1 μs; (b) 0.3 μs; (c) 0.5 μs; (d) 0.8 μs

    Fig. 13. Detonation wave pressure flow field under double-tube microcavity at different time. (a) 0.1 μs; (b) 0.3 μs; (c) 0.5 μs; (d) 0.8 μs

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    Thrust curves of microsphere particles for single- and double-tube microcavities

    Fig. 14. Thrust curves of microsphere particles for single- and double-tube microcavities

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    Schematic diagram of microcavity blocking structure

    Fig. 15. Schematic diagram of microcavity blocking structure

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    Cloud images of detonation wave pressure flow field with blocking structure at different time. (a) 0.1 μs; (b) 0.3 μs; (c) 0.5 μs; (d) 0.8 μs

    Fig. 16. Cloud images of detonation wave pressure flow field with blocking structure at different time. (a) 0.1 μs; (b) 0.3 μs; (c) 0.5 μs; (d) 0.8 μs

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    Thrust curves of microsphere particle for blocking structure and non-blocking structure

    Fig. 17. Thrust curves of microsphere particle for blocking structure and non-blocking structure

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    • Table 1. Comparison of impulse coupling coefficients of laser propulsion under different microcavity lengths

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      Table 1. Comparison of impulse coupling coefficients of laser propulsion under different microcavity lengths

      Microcavity length /μm—607590100
      Impulse coupling coefficient Cm /（dyne/W）0.03110120140140

    • Table 2. Comparison of impulse coupling coefficients of laser propulsion under different microcavity diameters

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      Table 2. Comparison of impulse coupling coefficients of laser propulsion under different microcavity diameters

      Microcavity diameter /μm—203040
      Impulse coupling coefficient Cm /（dyne/W）0.03140180187

    • Table 3. Parameters of laser propulsion efficiency for blocking structure

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      Table 3. Parameters of laser propulsion efficiency for blocking structure

      Structure typeBlockage ratioImpulse coupling coefficient Cm /（dyne/W）
      Non-blocking rectangle0140
      Blocked rectangle0.25260

    • Table 4. Parameter comparison of different microcavity configurations

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      Table 4. Parameter comparison of different microcavity configurations

      Microcavity

      type

      		Distance /μmLength /μmDiameter /μmBottom shapeNumber of microcavitiesBlockage ratioMaximum thrust /NImpulse coupling coefficient /（dyne/W）
      Free50—————0.2100.117
      125—————0.0500.03
      Rectangle1256020Rectangle100.073110
      1259020Rectangle100.056140
      12510020Rectangle100.045140
      12510030Rectangle100.107180
      12510040Rectangle100.122187
      U-shape12510020Rectangle100.049160
      Double-barrelled structure12510020Rectangle200.103340
      Blocking structure12510020Rectangle10.250.067260
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    Yang Ge, Hanyang Li, Hongtao Wang, Xianqi Tang, Gaoqian Zhou, Xulong Yang. Performance of Short Micro-Cavity Structure for Underwater Fiber Nanosecond Laser Propulsion[J]. Acta Optica Sinica, 2024, 44(6): 0614001

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    Paper Information

    Category: Lasers and Laser Optics

    Received: Aug. 3, 2023

    Accepted: Nov. 13, 2023

    Published Online: Mar. 11, 2024

    The Author Email: Li Hanyang (hanyang_li@hrbeu.edu.cn)

    DOI:10.3788/AOS231357

    Topics

    laser devices and laser physics
    Lasers and Laser Optics
    Laser physics
    laser manufacturing
    Instrumentation, Measurement and Metrology