Average Polarization of Electromagnetic Gaussian Schell-Model Beams through Anisotropic Non-Kolmogorov Turbulence

Zhao, Yuanhang; Zhang, Yixin; Wang, Qiu

doi:10.13164/re.2016.0652

Cited by 10 publications

(2 citation statements)

References 23 publications

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“…The results indicate that the behavior of the degree of polarization depends on the statistical properties of the source generating the EGSM beams and the parameters of the cavity. Zhao Yuanhang [8] studied the polarization properties of electromagnetic Gaussian Schell-model beams propagating through the anisotropic non-Kolmogorov turbulence of a marine-atmosphere channel based on the cross-spectral density matrix of the beam. The electromagnetic Gaussian Schell-model beam with smaller δyy, δxx, and Ax parameters, but a larger Ay, will reduce the interference of turbulence.…”

Section: Introductionmentioning

confidence: 99%

Experimental Study on Partially Coherent Optical Coherent Detection

Liang,

Mu,

et al. 2024

Photonics

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When coherent detection occurs, the polarization mismatch between signal light and local oscillator light can reduce the efficiency of coherent detection. This article combines the principle of optical mixers to derive the relationship between the polarization state and mixing efficiency of signal light and local oscillator light, and builds an experimental platform for the coherent detection of a partially coherent electromagnetic Gaussian Schell beam (EGSM). Polarization devices are used to regulate the polarization state of the signal EGSM light and local oscillator EGSM light, and different polarization states of the EGSM beams are generated. When the output power of the signal light is constant, the mixing efficiency is measured according to the output amplitude of the intermediate frequency signal. This experiment found that when the signal light is in a linearly polarized state and the local oscillator light is in a linearly polarized state, a circularly polarized state, or an elliptically polarized state, the amplitude of the intermediate frequency signal is 369.6 mv, 146.6 mv, or 92.1 mv, respectively. When the signal light is in a circularly polarized state, the amplitude of the intermediate frequency signal is 446.4 mv, 504.0 mv, or 159.2 mv, respectively. When the signal light is in an elliptical polarization state, the amplitude of the intermediate frequency signal is 94.4 mv, 124.0 mv, or 254.8 mv, respectively.

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Section: Introductionmentioning

confidence: 99%

Experimental Study on Partially Coherent Optical Coherent Detection

Liang,

Mu,

et al. 2024

Photonics

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“…There are several studies investigating anisotropy characteristics of the turbulent spectrum in different media [17][18][19][20] . These studies [17][18][19][20] cover the log-amplitude correlation function for spherical wave propagation through anisotropic non-Kolmogorov atmosphere, average polarization of the electromagnetic Gaussian Schell model beams propagating through anisotropic non-Kolmogorov turbulence, polarization of quantization Gaussian Schell beams through anisotropic non-Kolmogorov turbulence of the marine atmosphere, and effects of anisotropic turbulence on the average polarizability of Gaussian Schell model quantized beams through an ocean link. In our earlier studies, we have reported in anisotropic oceanic turbulence, the intensity fluctuations of spherical optical beams [21] , the intensity fluctuations [22] , and the bit error rate (BER) of asymmetrical Gaussian beams [23] .…”

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confidence: 99%

Anisotropy effect on multi-Gaussian beam propagation in turbulent ocean

Ata

Baykal

2018

中国光学快报

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Average transmittance of multi-Gaussian (flat-topped and annular) optical beams in an anisotropic turbulent ocean is examined analytically based on the extended Huygens-Fresnel principle. Transmittance variations depending on the link length, anisotropy factor, salinity and temperature contribution factor, source size, beam flatness order of flat-topped beam, Kolmogorov microscale length, rate of dissipation of turbulent kinetic energy, rate of dissipation of the mean squared temperature, and thickness of annular beam are examined. Results show that all these parameters have effects in various forms on the average transmittance in an anisotropic turbulent ocean. Hence, the performance of optical wireless communication systems can be improved by taking into account the variation of average transmittance versus the above parameters.

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