Chinese Optics Letters, 2010, 8 (1): 63, Published Online: Mar. 1, 2010
Spectroscopic properties of Tm, Ho:LiLuF4 Download: 1182次
Tm Ho:LuLF晶体 2μm激光 提拉法 上转换 160.3380 Laser materials 160.5690 Rare-earth-doped materials 160.4760 Optical properties 140.3380 Laser materials
Abstract
LiLuF<sub>4</sub> single crystals co-doped with thulium (5%) and holmium (0.5%), having large size, intact shape, and high optical quality, are successfully grown by the Czochralski technique. Absorption and fluorescence spectra of the crystal are measured. The absorption spectrum shows that the main absorption band locates at near 686 and 792 nm and the °uorescence spectrum peaks at 2.05 \mu m. At room temperature, the as-grown Tm, Ho: LiLuF<sub>4</sub> single crystals are end-pumped by a fiber-coupled laser diode system with pumping wavelength of 795 nm under CW operations. A power of 50 mw continuous laser output at 2.05 \mu m wavelength is achieved. Meanwhile an obvious green light is detected.
Haiyan Peng, Kun Zhang, Lianhan Zhang, Yin Hang, Jianqiu Xu, Yulong Tang, Yan Cheng, Jing Xiong, Chengchun Zhao, Guangzhu Chen, Xiaoming He. Spectroscopic properties of Tm, Ho:LiLuF4[J]. Chinese Optics Letters, 2010, 8(1): 63.