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This article focuses on the specialized testing challenges for silicon photonics and co-packaged optics (CPO), which are critical infrastructure components enabling the high-bandwidth requirements of AI and HPC workloads. While the product is a hardware probe, its primary relevance lies in validating the photonic interconnects that will define the next generation of AI data centers and quantum-classical hybrid systems.

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Co-packaged optics testing gets easier with FormFactor’s Pharos

Quantum ZeitgeistSeptember 24, 20265 min read

The Pharos Optical Probe Series combines low-loss optical coupling, patented fiducial technology, customizable probe configurations, and automated calibration to help engineers build more consistent optical test workflows. As bandwidth requirements increase for artificial intelligence, high-performance computing, and next-generation data centers, silicon photonics is playing a growing role in emerging co-packaged optics (CPO) architectures, but testing these sophisticated photonic devices is increasingly difficult.

Engineers tackling the growing demands of artificial intelligence and high-performance computing now have new tools for testing increasingly complex optical systems. FormFactor’s Pharos Optical Probe Series utilizes patented fiducial technology and automated calibration to address the challenges of accurately positioning optical probes and achieving efficient optical coupling, the company says. As silicon photonics plays a growing role in optical transceivers and emerging co-packaged optics (CPO) architectures, reliable characterization depends on consistent light coupling; even small changes in alignment can impact measurements. The series offers four probe configurations designed for a range of edge- and surface-coupling applications, aiming to…

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