| ZHOU Yan,CHENG Ke,ZHU Bo-yuan,YAO Na,ZHONG Xian-qiong.Dynamical behavior and propagation characteristic of partially coherent sinh-Airy beams in oceanic turbulence[J].Optoelectronics Letters,2021,17(1):59-64 |
| Dynamical behavior and propagation characteristic of partially coherent sinh-Airy beams in oceanic turbulence |
| Author Name | Affiliation | | ZHOU Yan | College of Optoelectronic Technology, Chengdu University of Information Technology, Chengdu 610225, China | | CHENG Ke | College of Optoelectronic Technology, Chengdu University of Information Technology, Chengdu 610225, China | | ZHU Bo-yuan | College of Optoelectronic Technology, Chengdu University of Information Technology, Chengdu 610225, China | | YAO Na | College of Optoelectronic Technology, Chengdu University of Information Technology, Chengdu 610225, China | | ZHONG Xian-qiong | College of Optoelectronic Technology, Chengdu University of Information Technology, Chengdu 610225, China |
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| Abstract: |
| By introducing the hyperbolic sine function to Airy beam, the dynamic behavior and propagation characteristics of partially coherent sinh-Airy beams in oceanic turbulence are studied using approximate analytical intensity expression. The influence of sinh modulation parameter, coherence length and ocean parameters on intensity evolution, beam width and kurtosis parameter is mainly discussed. The results show that a non-zero sinh modulation parameter presents not only the insensitivity to oceanic turbulence, but a smaller beam width. Furthermore, it also improves kurtosis parameter. These findings bring advantages in signal reception for long distance. In addition, a larger relative intensity of temperature or salinity fluctuations, mean square temperature dissipation rate, or a smaller dissipation rate of turbulence kinetic energy is more liable to increase beam width, or decrease intensity and kurtosis parameter of partially coherent sinh-Airy beams. The results provide an opportunity for improving signal reception of underwater communication or target detection by Airy beams or their groups. |
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