A Kerr-lens mode-locked laser based on a Yb-doped disordered gadolinium scandate (Yb:GdScO) crystal is reported for the first time, to the best of our knowledge. The crystal with the perovskite structure was grown using the Czochralski method, and its room temperature (RT) and low temperature (LT) spectra were also investigated. Due to the crystal's multisite structure (Gd/Sc site), Yb:GdScO offers broad and intense polarized emission spectra in the near-infrared range (975-1075 nm).
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