Double-path Echo Characteristics of Partially Coherent Airy Beam Through Rough Surface in Ocean Turbulent

Pengfei Wu; Zhuoran Zhang; Di Wu; Sichen Lei; Jiao Wang; Zhenkun Tan

doi:10.3788/LOP242296

Laser & Optoelectronics Progress, Volume. 62, Issue 15, 1501001(2025)

Double-path Echo Characteristics of Partially Coherent Airy Beam Through Rough Surface in Ocean Turbulent

Pengfei Wu¹, Zhuoran Zhang¹, Di Wu⁴, Sichen Lei^1、*, Jiao Wang², and Zhenkun Tan³

Author Affiliations

¹School of Automation and Information Engineering, Xi'an University of Technology, Xi'an 710048, Shaanxi , China

²School of Electronic Information and Artificial Intelligence, Shaanxi University of Science & Technology, Xi'an 710021, Shaanxi , China

³School of Optoelectronic Engineering, Xi'an Technological University, Xi'an 710021, Shaanxi , China

⁴School of Telecommunication Engineering, Haojing College of Shaanxi University of Science & Technology, Xi'an 712046, Shaanxi , China

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Figures & Tables(9)

Fig. 1. Double-path propagation of partially coherent Airy beams through rough surface in ocean turbulence

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Fig. 2. Echo intensity distributions corresponding to different truncation factors. (a) a=0.2; (b) a=0.4; (c) a=0.6; (d) a=0.8; (e) a=1.0

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Fig. 3. Complex coherence of echo light field at different truncation factors

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Fig. 4. Histogram of average speckle size with different truncation factors

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Fig. 5. Complex coherence of echo light field at different transmission distances

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Fig. 6. Complex coherence of echo light field at different coherent lengths

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Fig. 7. Complex coherence of echo light field at different ocean turbulence parameters. (a) Different temperature variance dissipation rates; (b) different turbulent energy dissipation rates; (c) different temperature-salt ratios

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Fig. 8. Complex coherence of echo light field at different square roughness

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Table 1. Numerical simulation parameters
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Table 1. Numerical simulation parameters
Parameter Value Unit Parameter Value Unit
a
λ
0.1
532
nm
ρ_h
σ₀
20
0.01
mm
m
δ 0.035 m $C_{n}^{2}$ 10^-16 ‒
z 50 m χ_T 10^-9 K²/s
ρ₀ 0.02 m ε 10^-3 m²/s³
σ_h 0.5λ nm w -4 ‒

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Pengfei Wu, Zhuoran Zhang, Di Wu, Sichen Lei, Jiao Wang, Zhenkun Tan. Double-path Echo Characteristics of Partially Coherent Airy Beam Through Rough Surface in Ocean Turbulent[J]. Laser & Optoelectronics Progress, 2025, 62(15): 1501001

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