Packaged Er-doped fiber amplifier module at 980 nm

Abstract

We present an efficient and compact (5xlOxl.8 cm3) Er:doped fiber amplifier (EDFA) module pumped with a 980 nm laser diode. We showed that this EDFA module is capable of operating with optimum gain and noise performance over a 30 nm bandwidth at 1550 nm, and with low electrical consumption (less than 100 mW). Using the EDFA as a rack mounted preamplifier module in a 2.5 Gbit/s direct detection system experiment, we achieved a -38.5 dBm receiver sensitivity at 10 bit error rate, and demonstrated long term operation (BER of 6. 10 14) ofthe overall system.