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Transmission of Multiple Signals through an Optical Fiber Using Wavefront Shaping
Published on: March 20, 2017
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Performance evaluation and comparative research of underwater wireless optical communication system by using
Summary
Structured beams like Bessel-Gaussian, Ince-Gaussian, and radially polarized Gaussian significantly improve underwater wireless optical communication (UWOC) performance against thermal gradients. These beams reduce beam wander and scintillation, enhancing data transmission reliability for marine exploration.
Area of Science:
- Optical Communications
- Marine Technology
Background:
- Structured beams are increasingly important for optical communications.
- Underwater wireless optical communication (UWOC) is a key technology for marine exploration.
Purpose of the Study:
- To investigate and compare the performance of different structured beams in UWOC systems.
- To evaluate the impact of thermal gradients on beam transmission.
Main Methods:
- Experimental demonstration and evaluation of Gaussian, Bessel-Gaussian (BG), Ince-Gaussian (IG), and radially polarized Gaussian (RPG) beams.
- Analysis of beam wander, scintillation index, and bit error rate (BER) under thermal gradient conditions.
Main Results:
- BG, IG, and RPG beams showed superior performance compared to Gaussian beams in underwater thermal gradients.
- Beam wander was reduced by up to 59%, scintillation index decreased by up to 28.9%, and BER improved by up to 5.2 dB.
- The radially polarized Gaussian (RPG) beam demonstrated the most promising results for UWOC.
Conclusions:
- Structured beams, particularly RPG, offer enhanced stability and reliability for UWOC systems.
- These findings provide valuable insights for selecting optimal light sources for underwater optical communication applications.
