Optical modules convert electrical signals into light to move data quickly and reliably in AI systems, enabling fast and smooth data processing. These savings apply to any optics implementation (DSP, LD, CPO) Possibilities. Community-driven hyperscale innovation for all. Community-driven hyperscale innovation for. CPO, a technology that deeply co-packages the optical engine with the switch chip, offers a solution for next-generation AI cluster interconnects by shortening the signal transmission path, reducing power consumption, and increasing bandwidth density. This article will systematically introduce the definition. At GTC 2025 on March 18, 2025, NVIDIA unveiled its revolutionary silicon photonics technology, replacing traditional pluggable optical transceivers with co-packaged optics (CPO). This breakthrough connects optical fibers directly to switches, reducing data center power consumption by an estimated. Although co-packaged optics (CPO) and on-board optics (OBO) have been proposed to increase bandwidth density, these approaches introduce significant challenges in field serviceability, scalability, and manufacturability, making them difficult to deploy widely in hyperscale environments.