The lasing characteristics of composite Tm:YAG rod with undoped ends at room temperature are reported. The maximum output power at 2.015 µm is 6.97 W and the slope efficiency is 41.45%. Focusing point and output coupler are changed to find the optimization condition. The relationship between operation temperature and output power is discussed. Comparison between Tm:YAG and composite Tm:YAG testifies the superiority of composite crystal.
© 2008 Chinese Optics Letters
Chunting Wu, Youlun Ju, Yufeng Li, Zhenguo Wang, and Yuezhu Wang, "Diode-end-pumped composite Tm:YAG rod with undoped ends at room temperature," Chin. Opt. Lett. 6, 594-596 (2008)