Fig. 1. Schematic of experimental setup

Fig. 2. Output power as a function of pump power under different radiation doses

Fig. 3. Optical-to-optical conversion efficiency as a function of pump power under different radiation doses

Fig. 4. Laser output power as a function of radiation dose under different pump powers

Fig. 5. Laser output power as a function of radiation dose

Fig. 6. Laser power degradation rate as a function of radiation dose