Enhanced radiation resistance and pre-irradiation effects of hydroxyl-containing fluorine-doped silica optical fibers at 1550 nm
Year: 2026
Type: article
Abstract: This study evaluated hydroxyl (OH)-containing, fluorine (F)-doped silica optical fibers developed to enhance radiation resistance for use in high-radiation environments. Fibers with different F and OH concentrations were fabricated using the vapor-phase axial deposition (VAD) process and compared with commercial radiation-hardened fibers under gamma-ray irradiation. The fabricated fibers exhibited superior radiation resistance, with an RIA of 3.7–6.5 dB/km at 100 kGy and 1550 nm, and a pronounced pre-irradiation effect that reduced the RIA at the same dose by up to 78% compared with the first irradiation cycle. These results suggest that the combined F and OH composition is an important factor influencing the radiation resistance and long-term performance of silica optical fibers intended for high-radiation environments.
Source: Optics Express
DOI: 10.1364/oe.614064
Language: English
Subfield: Electrical and Electronic Engineering
Field: Engineering
Domain: Physical Sciences
Open Access status: gold
Estimated APC paid: $2,270
OpenAlex ID: W7222942197