Development of Radiation Hard Graded Index Optical Fibers

摘要

The objective of this investigation is to reduce the optical fiber radiation sensitivity by doping with multivalent elements. Optical fibers, doped with arsenic under different redox conditions were prepared. Arsenic additions under slightly reducing conditions lowered the fiber radiation sensitivity, without influencing the intrinsic optical loss. This observation proved that arsenic can be used to improve optical fiber radiation hardening if optimized processing conditions are used. Further, development effort is needed to determine the effect of different parameters on radiation response. The parameters include, dopants and dopant levels, redox and fiber drawing conditions.