GRADED-INDEX FIBER FOR MULTIMODE OPTICAL COMMUNICATION

摘要

GRADED-INDEX FIBER FOR MULTIMODE OPTICAL COMMUNICATION Graded-index fibers, which are the most promising for first-generation optical communication links, are improved for multimode transmission by employing two or more glassy dopants in the core mutually graded with respect to the silica host and to each other to provide simultaneously minimized intermode dispersion at a first-selected wavelength and, in addition, a broader wavelength range of minimized intermode dispersion, or minimized intermode dispersion at a second distinct wavelength pertinent to the multimode transmission, or optimization of another dispersionrelated property of said fiber.