高阶激光模在喷气发动机排气湍流中的强度波动。

IF 1.5 3区物理与天体物理 Q3 OPTICS

Journal of The Optical Society of America A-optics Image Science and Vision Pub Date : 2025-09-01 DOI:10.1364/JOSAA.569233

Yahya Baykal

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引用次数: 0

摘要

利用高阶激光模式在光学无线通信链路中应用时，用闪烁指数量化了喷气发动机排气湍流的强度波动。采用低通滤波器和高通滤波器对喷气发动机排气湍流功率谱进行修正。强度波动根据链路长度、结构常数、波数（波长的倒数）（即湍流强度）、源大小和喷气发动机排气湍流参数进行评估。结果表明，高阶激光模式能较好地抑制闪烁。喷气发动机排气湍流参数对闪烁有很大的影响。

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Intensity fluctuations of higher-order laser modes in jet engine exhaust turbulence.

Intensity fluctuations quantified by the scintillation index are evaluated in jet engine exhaust turbulence when higher-order laser modes are used in optical wireless communication links. The jet engine exhaust turbulence power spectrum, modified by low-pass and high-pass filters, is employed. Intensity fluctuations are evaluated against the link length, structure constant, wave number (inverse of wavelength) (i.e., against turbulence strength), source size, and jet engine exhaust turbulence parameters. It is found that higher-order laser modes are better at mitigating the scintillations. Jet engine exhaust turbulence parameters are found to affect scintillations substantially.

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来源期刊

Journal of The Optical Society of America A-optics Image Science and Vision 物理-光学

CiteScore

3.40

自引率

10.50%

发文量

417

审稿时长

3 months

期刊介绍： The Journal of the Optical Society of America A (JOSA A) is devoted to developments in any field of classical optics, image science, and vision. JOSA A includes original peer-reviewed papers on such topics as: * Atmospheric optics * Clinical vision * Coherence and Statistical Optics * Color * Diffraction and gratings * Image processing * Machine vision * Physiological optics * Polarization * Scattering * Signal processing * Thin films * Visual optics Also: j opt soc am a.