Performance evaluation of a 640 Gbps integrated polarization division multiplexing-orbital angular momentum multiplexing-orthogonal frequency division multiplexing based free space optics transmission

Key Points

• Transmission performance reached 640 Gbps, showcasing the potential of advanced multiplexing techniques.
• Key evidence demonstrates that integrated polarization division multiplexing outperformed traditional methods in speed.
• Assessment using multiple multiplexing strategies including orbital angular momentum and orthogonal frequency division in free space optics.
• Highlights the need for further optimization in real-world conditions to translate lab performance to widespread applications.