Abstract
We study the effects of non-diffraction on the pulse spreading and average intensity of the orbital angular momentum (OAM) mode of a Hankel-Bessel beam propagating through a strong anisotropic marine atmosphere. The average intensity of the OAM mode of the Hankel-Bessel pulse beam is modeled based on the modified Rytov approximation. We find that the pulse width and the average intensity of the received beam are affected by the refractive index structure constant of turbulence as well as the wavelength. The pulse widths of the received OAM signal modes have imperceptible changes for different OAM quantum numbers, and outer and inner scales of turbulence. Our results show that we can choose with longer wavelength light to reduce the impacts of turbulence on the pulse width and average intensity of received OAM signal modes.
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