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Transmission of Multiple Signals through an Optical Fiber Using Wavefront Shaping

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Statistically robust transmission in free-space optical communications using multi-parameter optimized sharp beams.

Shuo Wang, Jinfeng Liu, Chengkun Cai

|September 23, 2025

Summary

This summary is machine-generated.

This study introduces an optimized sharp beam for free-space optical communications, overcoming atmospheric turbulence. The novel beam shows enhanced performance and robust transmission, improving data communication reliability.

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Area of Science:

Optics and Photonics
Telecommunications Engineering

Background:

Free-space optical (FSO) communication offers high-speed data transmission but is severely limited by atmospheric turbulence.
Turbulence degrades beam quality, leading to signal attenuation and power loss, hindering practical FSO system deployment.

Purpose of the Study:

To propose and theoretically analyze a novel
sharp beam
for enhanced performance in turbulent free-space optical communications.
To investigate the self-focusing, self-healing, and propagation characteristics of the sharp beam compared to conventional Gaussian beams.

Main Methods:

Development of a theoretical model for the sharp beam incorporating phase parameter (f), intensity parameter (α), and structure parameter (r0).
Analytical derivation and simulation of beam propagation under stochastic atmospheric turbulence conditions.
Statistical analysis of simulation results to evaluate transmission robustness and power gain.

Main Results:

The optimized sharp beam demonstrates superior self-focusing, self-healing, and near diffraction-free propagation compared to Gaussian beams.
Statistical analyses confirm the robust transmission characteristics of the sharp beam under varying turbulence intensities.
A power threshold gain of 3-4 dB is achieved while maintaining equivalent outage probability.

Conclusions:

The multi-parameter optimized sharp beam offers a promising strategy for overcoming atmospheric turbulence in free-space optical communications.
The findings elucidate the robust transmission capabilities of the sharp beam, paving the way for practical FSO applications.