The data center market in 2025 is poised for continued strong growth, driven by ongoing digital transformation across industries. Increasing demand for AI, machine learning, and IoT is fueling the need for scalable, secure, and high- performance data centers.

This document provides technicians, managers and industry professionals with a comprehensive guide to testing optical networks across the data center environment. It contains solutions for ultra longhaul and subsea DCI, right down to short range optical links connecting server racks within data halls.

Key aspects discussed include:

• Types and sizes of data centers
• Network architecture and infrastructure
• Switches and transceivers
• Standards and testing solutions