This review aims to provide the readers a comprehensive overview of the state-of-the-art progress of CPO in silicon plat-form, identify the key challenges, and point out the potential solutions, hoping to encourage collaboration between diferent research fields to accelerate the. This review aims to provide the readers a comprehensive overview of the state-of-the-art progress of CPO in silicon plat-form, identify the key challenges, and point out the potential solutions, hoping to encourage collaboration between diferent research fields to accelerate the. Today, data centers use a separate approach for optics and electronics, in which optical modules are connected to switches and routers through high-speed electrical interfaces. As data demands grow, these systems face limitations such as bandwidth constraints, latency issues, and space limitations. Co-packaged optics (CPO) is a disruptive approach to increasing the interconnecting bandwidth density and energy eficiency by dramatically shortening the electrical link length through advanced packaging and co-optimization of electronics and photonics. CPO is widely regarded as a promising. From Jensen Huang showcasing CPO switches at GTC 2025 to a wide range of vendors demonstrating optical engines integrated inside ASIC packages at OFC 2025, CPOs are everywhere. However, it's worth noting that Andy Bechtolsheim, co-founder of Arista and a long-standing visionary in data centre. Ciena's Matt Bolig explains how this shift is setting the stage for co-packaged optics to redefine how bandwidth is delivered inside the data center. There is an inflection point approaching in data center networking with a new technology that is forecasted to supersede pluggable optical modules. SCALE CPO solution is the industry's first OCI MSA capable platform and built with GF's proven silicon photonics technology MALTA, N., May 4, 2026 – GlobalFoundries (Nasdaq: GFS) (GF) today announced the introduction of its SCALE™ optical module solution for co-packaged optics (CPO). According to LightCounting, sales of lasers and photonic integrated circuits for optical transceivers are expected to grow from $2. 9B by 2029, fueled largely by AI data centers. Read on to learn key CPO.