Tm³⁺-doped Gd_0.1Y_0.9AlO₃ (GYAP) disordered crystal with size of Φ (28–35) mm × (50–70) mm was grown successfully by the Czochralski method. The X-ray powder diffraction, polarized absorption spectra, and polarized luminescence spectra of Tm³⁺: GYAP crystal were measured to investigate the structural and luminescent properties of the crystal. The cell parameters of Tm³⁺: GYAP crystal were found to be a = 5.321 Å, b = 7.371 Å, and c = 5.176 Å, respectively. The spectral parameters such as line strengths, Judd-Ofelt (J-O) intensity parameters Ω_2,4,6, the radiative transition rates, the branching ratios, and the radiative lifetimes were calculated based on the J-O theory. The absorption cross-sections were determined to be 0.47 × 10⁻²⁰ cm² (at 797 nm), 0.55 × 10⁻²⁰ cm² (at 777 nm), and 0.41 × 10⁻²⁰ cm² (at 794 nm), respectively. The Tm³⁺: GYAP crystal, as far as we know, was firstly used for laser demonstration with a 793 nm laser diode (LD). The slope efficiency up to 6.4% was achieved with maximum output power of 426 mW at 1941.953 nm. The resulting linear polarized and stable laser output indicate that the Tm³⁺: GYAP disordered crystal can be applied to achieving tunable and ultra-short laser at ~2 μm.

通过切克劳斯基方法成功地生长了Tm ³⁺掺杂的Gd _0.1 Y _0.9 AlO ₃（GYAP）无序晶体，其尺寸为Φ（28-35）mm×（50-70）mm。测量了Tm ³⁺：GYAP晶体的X射线粉末衍射，偏振吸收光谱和偏振发光光谱，以研究晶体的结构和发光特性。发现Tm ³⁺：GYAP晶体的晶胞参数分别为a ＝ 5.321埃，b ＝ 7.371埃，和c ＝ 5.176埃。谱线参数，线强度，贾德-奥费尔特（JO）强度参数_Ω2,4,6，根据JO理论计算了辐射跃迁速率，分支比和辐射寿命。吸收截面被确定为分别为0.47×10 ^-20  cm ²（在797 nm），0.55×10 ^-20 cm ²（在777 nm）和0.41×10 ^-20  cm ²（在794 nm）。 。据我们所知，Tm ³⁺：GYAP晶体首先用于793 nm激光二极管（LD）的激光演示。在1941.953 nm处，最大输出功率为426 mW，可实现高达6.4％的斜率效率。产生的线性偏振和稳定的激光输出表明Tm ³⁺：GYAP无序晶体可用于实现〜2μm的可调和超短激光。