| 摘要 |
An optical fiber having resistance to hydrogen-induced attenuation includes a core and cladding including silica. At least one of the core and the cladding includes a dopant capable of not increasing reactivity of the silica with hydrogen. An optical fiber assembly includes a core and cladding including silica. At least one of the core and the cladding includes a dopant capable of changing the refractive index of the fiber core or cladding while not increasing reactivity of the fiber with hydrogen. The optical fiber in some examples further includes a hermetic layer disposed about the cladding. Some implementations include a“getter”layer, which may be an outside part of the fiber cladding been inside the hermetic coating. The“getter”layer includes silica and a dopant increasing reactivity of the layer with hydrogen. The optical fiber assembly optionally includes a sheath disposed about the cladding. |
