Experimental investigation of radiation effect on erbium-ytterbium co-doped fiber amplifier for space optical communication in low-dose radiation environment

High power erbium-ytterbium co-doped fiber amplifier (EYDFA) has been radiated to the dose of 50krad at the dose rate of 40rad/s. Some key parameters have been measured to investigate the radiation effect on the EYDFA for space optical communication. Considering the dose of 50krad is big enough to the most of low-dose radiation environment, these experimental results will be a good reference for the low-dose inter-satellite optical communication designers. (C) 2009 Optical Society of America