Cladding-pumped YDFA for data transmission in the 1071-1097 nm range

We report a broadband ytterbium doped fibre amplifier designed for long-wavelength operation. Our amplifier utilizes a simple, single-stage cladding-pumped configuration and is capable of a gain of more than 25 dB over a wide bandwidth of 26 nm (~6.6 THz), in 1071-1097 nm.