Influence of Aero-Optical Effect on Laser Communication of Aircraft Platforms

Chenming Cao; Zhi Liu; Su Zhang; Peng Lin; Qingfang Jiang; Helong Wang

doi:10.3788/LOP232719

Laser & Optoelectronics Progress, Volume. 61, Issue 7, 0706017(2024)

Influence of Aero-Optical Effect on Laser Communication of Aircraft Platforms

Chenming Cao¹, Zhi Liu^2、*, Su Zhang^2、**, Peng Lin², Qingfang Jiang³, and Helong Wang⁴

Author Affiliations

¹School of Optoelectronic Engineering, Changchun University of Science and Technology, Changchun 130022, Jilin , China

²National and Local Joint Engineering Research Center of Space Optoelectronic Technology, Changchun University of Science and Technology, Changchun 130022, Jilin , China

³School of Electronic and Information Engineering, Changchun University of Science and Technology, Changchun 130022, Jilin , China

⁴Luoyang Institute of Electro-Optical Equipment, Aviation Industry of China, Luoyang 471000, Henan , China

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Figures & Tables(14)

Fig. 1. Convex structure diagram

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Fig. 2. Schematic of flow field structure

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Fig. 3. Relationship between determinant and grid mesh quality

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Fig. 4. Relationship between min angle and grid mesh quality

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Fig. 5. Plane density cloud map of flow field Z=0 at different flight speeds and altitudes. (a)‒(c) 0.4, 0.6, 0.8 Ma cloud map at 0 altitude; (d)‒(f) 0.4, 0.6, 0.8 Ma cloud map at 5 km altitude; (g)‒(i) 0.4, 0.6, 0.8 Ma cloud map at 10 km altitude; (j)‒(l) 0.4, 0.6, 0.8 Ma cloud map at 15 km altitude; (m)‒(o) 0.4, 0.6, 0.8 Ma cloud map at 20 km altitude

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Fig. 6. Plane density cloud map of flow field Y=0 at different flight speeds and altitudes. (a)‒(c) 0.4, 0.6, 0.8 Ma cloud map at 0 altitude; (d)‒(f) 0.4, 0.6, 0.8 Ma cloud map at 5 km altitude; (g)‒(i) 0.4, 0.6, 0.8 Ma cloud map at 10 km altitude; (j)‒(l) 0.4, 0.6, 0.8 Ma cloud map at 15 km altitude; (m)‒(o) 0.4, 0.6, 0.8 Ma cloud map at 20 km altitude

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Fig. 7. Schematic of optical computing area

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Fig. 8. Schematic diagram of beam emission direction, where θ_AZ is azimuthal angle, θ_EL is elevation angle

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Fig. 9. Distribution of optical path difference at different flight speeds and altitudes. (a)‒(c) 0.4, 0.6, 0.8 Ma cloud map at 0 altitude; (d)-(f) 0.4, 0.6, 0.8 Ma cloud map at 5 km altitude; (g)‒(i) 0.4, 0.6, 0.8 Ma cloud map at 10 km altitude; (j)‒(l) 0.4, 0.6, 0.8 Ma cloud map at 15 km altitude; (m)‒(o) 0.4, 0.6, 0.8 Ma cloud map at 20 km altitude

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Fig. 10. Distribution of optical path difference after single beam passes through flow field at altitude of 0 and flight speed of 0.8 Ma

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Table 1. Relationship between atmospheric gas parameters and altitude
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Table 1. Relationship between atmospheric gas parameters and altitude
Height /km Temperature /K Pressure /Pa
0 288.15 1011325.0
5 255.67 54048.0
10 223.25 26499.0
15 216.65 12111.0
20 216.65 5529.3

Table 2. Material properties
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Table 2. Material properties
Material Density /（kg /m³） Specific heat capacity /（J·kg^-1∙K^-1） Thermal conductivity /（W·m^-1∙K^-1）
ZnS 4120 485.7 18.0
Al 2719 871.0 202.4

Table 3. Maximum optical path difference at different flight speeds and altitudes
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Table 3. Maximum optical path difference at different flight speeds and altitudes
Speed /Ma Maximum optical path difference /μm
0 5 km 10 km 15 km 20 km
0.4 2.946 2.058 1.092 0.452 0.232
0.6 7.298 4.594 2.396 1.159 0.553
0.8 13.254 10.196 5.108 2.197 1.132

Table 4. Strehl ratio at different flight speeds and altitudes
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Table 4. Strehl ratio at different flight speeds and altitudes
Speed /Ma Strehl ratio
0 5 km 10 km 15 km 20 km
0.4 0.854 0.896 0.953 0.972 0.985
0.6 0.797 0.835 0.893 0.915 0.969
0.8 0.739 0.794 0.836 0.887 0.943

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Chenming Cao, Zhi Liu, Su Zhang, Peng Lin, Qingfang Jiang, Helong Wang. Influence of Aero-Optical Effect on Laser Communication of Aircraft Platforms[J]. Laser & Optoelectronics Progress, 2024, 61(7): 0706017

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