Laser diode pumped bismuth-doped optical fiber amplifier for 1430 nm band

A 24 dB gain bismuth-doped fiber amplifier at 1430nm pumped by a 65mW commercial laser diode at 1310nm is reported for the first time (to our knowledge). A 3 dB bandwidth of about 40nm, a noise figure of 6 dB, and a power conversion efficiency of about 60% are demonstrated. The temperature behavior of the gain spectrum is examined. (C) 2011 Optical Society of America