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Is a semiconductor CPO an optical module
CPO optical modules put optical and electronic parts together. They make the signal path much shorter, from centimeters to millimeters. This can cut power use by up to half. CPO technology lets more data fit in a small space. 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. For instance, in 800G optical modules utilizing M7 PCB interconnects, signal loss for 112Gbps PAM4 signals (with ~30 GHz bandwidth). CPO stands for Co-packaged Optics. Read on to learn key CPO trends shaping AI systems in 2026 and the challenges designers will need to. 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.
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