Broadening the rare earth ion emission bandwidth, increasing emission cross section, and/or shifti

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The invention relates to a Nd-doped, aluminate-based or silicate-based, laser glass having a peak emission wavelength that is longer than 1059.7nm, an emission cross section (σem) of ≥ 1.5 x10-20 cm2, and/or an emission bandwidth (Δλeff) of ≥ 28 nm, while maintaining properties that render the glass suitable for commercial use, such as low glass transition temperature Tg and low nonlinear index, n2.