The Signal InsightThe AI-powered surge in demand for data centers has transformed the fortunes of a 55-year-old optical technologies company from Saxonburg, Pennsylvania. Coherent’s stock has risen 350% since it named Jim Anderson as its CEO in June 2024, taking its market value above $60 billion. Without the photonics technology that Coherent specializes in, scaling AI would not be possible, Anderson says. In recent months, he has secured a $2 …