
Bringing Legacy Fiber Optic Cables Up to Speed
Installing optical fibers with fat cores once seemed like a good idea for local-area or campus data networks. It was easier to couple light into such “multimode” fibers than into the tiny cores of high-capacity “singlemode” fibers used for long-haul networks. The fatter the core, the slower data flows through the fiber, but fiber with 50-micrometer […]