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We present a suite of silica-based thulium-doped fiber amplifiers (TDFAs) operating across the 1650–2050nm waveband. High gain and low NF are achieved by combining several TDFA designs optimized for short, central and long wavelength operation.
We report the first experimental realization of thulium doped fiber amplifier providing high gain (>40dB), noise figure as low as 5dB and over 100nm wide bandwidth around 2µm with maximum saturated output power of 400mW.
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