Real-Time Transmission of Uncompressed High-Definition Video Via A VCSEL-Based Optical Wireless Link With Ultra-Low Latency

Hossein Kazemi; Isaac N. O. Osahon; Tiankuo Jiao; David Butler; Nikolay Ledentsov Jr.; Ilya Titkov; Nikolay Ledentsov; Harald Haas

arXiv · 2507.23746

Real-Time Transmission of Uncompressed High-Definition Video Via A VCSEL-Based Optical Wireless Link With Ultra-Low Latency

Hossein Kazemi·Isaac N. O. Osahon·Tiankuo Jiao·David Butler·Nikolay Ledentsov Jr.·Ilya Titkov·Nikolay Ledentsov·Harald Haas

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Abstract

Real-time transmission of high-resolution video signals in an uncompressed and unencrypted format requires an ultra-reliable and low-latency communications (URLLC) medium with high bandwidth to maintain the quality of experience (QoE) for users. We put forward the design and experimental demonstration of a high-performance laser-based optical wireless communication (OWC) system that enables high-definition (HD) video transmission with submillisecond latencies. The serial digital interface (SDI) output of a camera is used to transmit the live video stream over an optical wireless link by directly modulating the SDI signal on the intensity of a 940 nm vertical cavity surface emitting laser (VCSEL). The proposed SDI over light fidelity (LiFi) system corroborates error-free transmission of full HD (FHD) and 4K ultra-high-definition (UHD) resolutions at data rates of 2.97 Gb/s and 5.94 Gb/s, respectively, with a measured end-to-end latency of under 35 ns. Since SDI standards support various video formats and VCSELs are high-bandwidth and low-power devices, this presents a scalable and inexpensive solution for wireless connectivity between professional broadcast equipment using off-the-shelf SDI components.

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Hossein Kazemi, Isaac N. O. Osahon, Tiankuo Jiao, David Butler, Nikolay Ledentsov Jr., Ilya Titkov, Nikolay Ledentsov, Harald Haas. 2025-07-31. Real-Time Transmission of Uncompressed High-Definition Video Via A VCSEL-Based Optical Wireless Link With Ultra-Low Latency. https://arxiv.org/abs/2507.23746

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