We investigated material properties of terbium aluminum garnet (TAG) ceramics and its characteristics as a material for a Faraday isolator for high-average power lasers. We measured the transmittance, absorption coefficient, and temperature dependencies of Verdet constant and thermal conductivity. Consequently, our model analysis shows that TAG ceramic isolators can be operated over 3 kW average laser power at a 30 dB isolation ratio. The power limit becomes higher if a gas cooling scheme is applied.

中文翻译：

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TAG陶瓷在室温和低温下的性能以及作为法拉第隔离器的性能评估

我们研究了aluminum铝石榴石（TAG）陶瓷的材料特性及其作为高平均功率激光器的法拉第隔离器材料的特性。我们测量了Verdet常数和导热率的透射率，吸收系数和温度依赖性。因此，我们的模型分析表明，TAG陶瓷隔离器可以在3 kW的平均激光功率下以30 dB的隔离比工作。如果采用气体冷却方案，则功率极限会更高。