Temperature dependent gain and noise figure characteristics of O-Band Bismuth-Doped fibre amplifier

We report an O-band BDFA gain and NF performance over the temperature-range of −40 to +60°C. A 34dB gain with 5.5dB NF was obtained at 1340nm in a double-pass-BDFA operating at −40°C. The temperature-dependent-gain was decreased by < 0.1dB/°C for temperatures above −20°C across 1310–1360nm wavelength-band.