CPO testing faces hurdles from Insertion 1 to 4, with '100% testing' expected to accelerate in 2027

As Co-Packaged Optics (CPO) enters mass production, testing bottlenecks in insertion stages 1 to 4 are impeding yield and delivery timelines. This issue is triggering upstream tech stack adjustments, particularly in photonic components and packaging materials, with downstream test equipment vendors under pressure to innovate. From a compliance standpoint, tightening global supply chain standards are increasing operational costs, especially for firms reliant on overseas suppliers. In competitive terms, leading players may accelerate in-house test platform development to reduce dependency risks. By 2027, full-scale 100% testing is expected to reshape industry entry barriers and drive standardization. Over the next two years, the maturity of CPO testing systems will become a key determinant of competitive advantage.