Stabilization of a superfluorescent fiber source with high performance erbium doped fibers

► A broadband fiber source is spectrally stabilized to 1.3 ppm/°C over a 100 °C change. ► A thermal gain model is set up to predict its thermal insensitive wavelength. ► Thermal-management combined with backward spectral filtering is used. ► Three newly developed gain fibers are used to optimize the fiber source's output. ► The source is useful for high precision fiber optic gyroscope sensor application.