Visible Light Optical Data Centre Links

TL;DR

This paper proposes a high-speed visible light communication system for data centers using RYGB laser diodes and various receivers, achieving data rates up to 14.2 Gbps with simple modulation.

Contribution

It introduces a VLC-based data center link design utilizing RYGB laser diodes and evaluates different receiver types for optimal performance.

Findings

Achieved data rates up to 14.2 Gbps with OOK modulation.

Compared performance of WFOVR, ADR, and ImR receivers.

Demonstrated feasibility of VLC for high-speed data center links.

Abstract

Providing high data rates is one of the big concerns in visible light communication (VLC) systems. This paper introduces a data centre design that use a VLC system for downlink communication. In this work, RYGB laser diodes (LD) are used as transmitters to obtain a high modulation bandwidth. Three types of receivers, wide field of view receiver (WFOVR), 3 branches angle diversity receiver (ADR) and 50 pixels imaging receiver (ImR) are used to examine delay spread and SNR. The proposed system achieved data rates up to 14.2 Gbps using simple on-off-keying (OOK) modulation.