Tm:YAG

产品分类:YAG, 激光晶体

Tm:YAG在0.82μm波长范围内的3H43H6跃迁上运行。它可以用波长范围为0.78 – 0.8μm的高效二极管激光器泵浦。该过渡具有小的量子缺陷,可实现低散热。为了获得良好的能量存储,激发态寿命可以很长,大约为毫秒。它还具有足够的增益带宽,可根据主体材料和工作温度来支持亚ps长的脉冲。与单晶材料相比,透明陶瓷材料结合了单晶和玻璃的优点。通过固态反应和真空烧结来制造透明陶瓷材料。因此,它们不仅具有与单晶一样优良的光学和热性能,而且还具有大尺寸、高浓度的特点。此外,它们还具有其他优势,例如制造周期短,成本较低和多功能样品。

Tm:YAG

参数

材料规格

Tm浓度公差(atm%)Tm:0.5~5at%
取向[111]<5º
平行性≤10″
垂直性≤5′
表面质量10-5 (MIL-O-13830A)
波前失真≤ 0.125λ/25 mm @632.8nm
表面平整度λ/8@632nm
通光孔径>95%
倒角 0.15±0.05mm
尺寸D: 2~10mmL: 3~150mm
涂层AR: ≤0.25% @2μm

物理和化学特性

光学和光谱性质

激光跃迁3F43H6
激光波长1.87~2.16μm
折射率的温度依赖性7.3 10-6/K
吸收截面7.5×10-21cm2
二极管泵浦带785nm, 680nm
发射截面@ 2013nm2.9×10-20 cm2
荧光寿命 11ms
折射率@ 632nm1.83

参考文献

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[17]  Wu C ,  Ju Y ,  Qiang W , et al. Injection-seeded Tm:YAG laser at room temperature[J]. Optics Communications, 2011, 284(4):994-998.
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[27] Chunting Wu⁎,  Jiang Y ,  Wang C , et al. Pulse-diode-intermittent-pumped 2-µm acousto-optically Q-switched Tm:YAG laser[J]. Infrared Physics & Technology, 2019, 96:151-154.
[28]  Ferrier A ,  Ilas S ,  Goldner P , et al. Scandium doped Tm:YAG ceramics and single crystals: Coherent and high resolution spectroscopy[J]. Journal of Luminescence, 2017:S0022231317316599.
[29]  Fei B J ,  Huang J Q ,  Guo W , et al. Spectroscopic properties and laser performance of Tm:YAG ceramics[J]. Journal of Luminescence, 2013, 142(Complete):189-195.
[30] Wu, C, T, et al. Thermal effect and laser characteristics of LD end-pumped CW Tm:YAG laser at room temperature[J]. Journal for Light and Electronoptic, 2017.

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