A novel, to the best of our knowledge, Tm,Ho:GdScO₃ crystal grown using the Czochralski method was investigated for its polarized spectroscopic properties and laser performance in both tunable continuous-wave (CW) and mode-locked regimes. The crystal’s multisite structure (Gd³⁺/Sc³⁺ site) and Tm³⁺/Ho³⁺ dopants contributed to spectral broadening, enabling a tunable laser operation from 1914 to 2125 nm (with a broad range of 215 nm). Additionally, a pulse duration of 72 fs was achieved for E || b polarization. These results demonstrate the potential of the Tm,Ho:GdScO₃ perovskite crystal as a promising gain material for ultrafast lasers operating around 2 µm.

中文翻译：

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可调谐锁模 Tm,Ho:GdScO3 激光器

据我们所知，我们研究了使用直拉法生长的新型 Tm,Ho:GdScO ₃晶体的偏振光谱特性以及可调谐连续波 (CW) 和锁模状态下的激光性能。该晶体的多位点结构（Gd ³⁺ /Sc ³⁺位点）和Tm ³⁺ /Ho ³⁺掺杂剂有助于光谱展宽，从而实现1914 至2125 nm（宽范围为215 nm）的可调谐激光操作。此外， E ||的脉冲持续时间达到了 72 fs。b极化。这些结果证明了 Tm,Ho:GdScO ₃钙钛矿晶体作为工作在 2 µm 左右的超快激光器的有前途的增益材料的潜力。