Research on Coupling Efficiency of Partially Coherent Light-Fiber Array Under Atmospheric Turbulence Channel
Citation
雷思琛 (Lei Sichen), 南友新 (Nan Youxin), 杨玉峰 (Yang Yufeng), & 吴鹏飞 (Wu Pengfei). (2021). 大气湍流信道中部分相干光-光纤阵列耦合效率的研究 (Research on Coupling Efficiency of Partially Coherent Light-Fiber Array Under Atmospheric Turbulence Channel). 激光与光电子学进展 (Laser & Optoelectronics Progress), 58(5), 0501001. doi: 10. 3788/LOP202158. 0501001
Keywords
- 部分相干光 / Partially Coherent Light
- 光纤阵列 / Fiber Array
- 耦合效率 / Coupling Efficiency
- 大气湍流 / Atmospheric Turbulence
- 透镜阵列 / Lens Array
- 光源相干度 / Light Source Coherence
- 子孔径数 N / Sub-aperture Number N
- 传输距离 / Transmission Distance
- 湍流强度 / Turbulence Intensity
- 波长 / Wavelengths
- 交叉谱密度函数 / Cross Spectral Density Function
- 等效接收口径 / Equivalent Receiving Aperture
- 单透镜接收 / Single-Lens Reception
- 无线激光通信 / Wireless Laser Communication
- 空间光 / Spatial Light
- 单模光纤 / Single-Mode Fiber
- 高斯 -谢尔模型光束 / Gaussian-Schell Model Beam
- 自适应光纤耦合器阵列 / Adaptive Fiber Coupler Array
- 随机并行梯度下降算法 / SPGD Algorithm
- 透镜阵列模型 / Lens Array Model
Brief
This article investigates the coupling efficiency of partially coherent light with fiber arrays using lens arrays in atmospheric turbulence, analyzing the impact of factors like coherence, lens array size, distance, turbulence, and wavelength and showing that lens arrays, especially with more sub-apertures, can improve this efficiency particularly in strong turbulence and for shorter wavelengths.
Summary
This article investigates the coupling efficiency of partially coherent light into fiber arrays using lens arrays under atmospheric turbulence. It finds that lens arrays, especially with a higher number of sub-apertures (N), can significantly improve coupling efficiency compared to single lenses, particularly in moderate and strong turbulence and for shorter wavelengths. The study analyzes the impact of factors like light source coherence, transmission distance, turbulence intensity, and wavelength on this coupling efficiency through numerical simulations.
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