Ezra Weener's questions to Coherent Corp (COHR) leadership • Q4 2025
Question
Ezra Weener, on for Blayne Curtis, asked about the OCS competitive landscape, specifically the performance and cost benefits of liquid crystal versus mechanical MEMS technology. He also inquired about the supply-demand dynamics for 1.6T and 800G transceivers and the mix of internal versus external laser sourcing.
Answer
CEO Jim Anderson highlighted that Coherent's non-mechanical digital liquid crystal technology offers significantly higher reliability than competing MEMS-based solutions, a key advantage in AI data centers. Regarding transceivers, he noted that 800G continues to ramp into next year with 1.6T ramping on top. He confirmed Coherent uses a mix of internal and external lasers, with over half of EML-based transceivers utilizing internally sourced EMLs.