Commentary: Precision vs. breadth—Why Taiwan's lens giants have opposite CPO playbooks

Largan’s bet on high-precision CPO modules extends its smartphone-era optical dominance, while GSEO’s broad-compatibility approach caters to AI server clients demanding cost efficiency and supply flexibility. This divergence fractures upstream silicon photonics specs: Largan’s path raises integration barriers for laser-on-silicon, whereas GSEO accelerates multi-source ecosystems. Amid tightening U.S.-EU semiconductor equipment controls, over-reliance on a single technical route heightens supply chain fragility—especially if critical coating or bonding processes face export restrictions. Rivals like Sunny Optical may exploit this by offering ‘full-stack alternatives’ to North American cloud providers. Over the next 18 months, CPO standardization will stall; instead, client-driven customization fuels fragmented adoption, rewarding firms with cross-platform optical coupling mastery.