Solid-Type Low-Latency Optical Fiber With Large Effective Area

Low-latency transmission is required by services emerging in today's optical communication networks, such as machine-to-machine communication. As transmission distances are now reaching several thousands of kilometers, the propagation latency in optical fiber cannot be ignored. In this study, we propose a solid-type low-latency optical fiber that has lower group delay than conventional silica core fibers. Numerical analyses and measurements show 0.3% lower group delay than a conventional silica core fiber, and its excellent optical properties include its large effective area, low nonlinearity and low loss comparable to that of conventional single mode fiber.