Optical fibre containing at least one Bragg grating and obtained by writing the grating directly through a coating surrounding the fibre cladding

摘要

Optical fiber (1') comprising a core (2) surrounded by a sheath (3) and an ultraviolet-transparent coating (4), with a Bragg grating (11) written into the core and/or sheath through the coating, comprises a coating consisting of a polymer network interpenetrated with a second polymer. An Independent claim is also included for an optical device incorporating the optical fiber.