As optical communication and photonics technology evolve, the diversity of optical fibers expands far beyond standard single-mode or multimode types. Among them, Step-Index Fiber and Graded-Index Fiber stand as two foundational fiber structures — widely used not only in telecom but also in specialty fiber applications such as lasers, sensors, and precision optical devices. What … Continue reading Step-Index vs Graded-Index Fiber: A Fundamental Guide to Specialty Optical Fibers