Chi Qiaoyun, Liu Lei, Xin Xianhui, Fu Xiuwei, Jia Zhitai, Tao Xutang
State Key Laboratory of Crystal Materials, Shandong University, Jinan 250100, China.
Materials (Basel). 2022 Jul 11;15(14):4819. doi: 10.3390/ma15144819.
A high-quality Er-doped (GdLu)GaO (Er: LGGG) laser crystal with a size of 36 × 45 mm was successfully grown by the Czochralski (Cz) method for the first time. The effective segregation coefficient of Er was determined to be 0.97, close to 1, and, thus, the uniform high-quality Er: LGGG crystal can be grown. In addition, the thermal and spectroscopic properties of Er: LGGG were investigated. Based on the measured characteristics, the Er: LGGG crystal has a huge potential for use in the 3.0 µm mid-infrared laser because of its outstanding optical quality, extraordinary thermal conductivity and stable structure.
首次采用提拉法成功生长出尺寸为36×45毫米的高质量掺铒(GdLu)GaO(Er:LGGG)激光晶体。铒的有效分凝系数确定为0.97,接近1,因此可以生长出均匀的高质量Er:LGGG晶体。此外,还研究了Er:LGGG的热学和光谱性质。基于所测量的特性,Er:LGGG晶体因其优异的光学质量、非凡的热导率和稳定的结构而在3.0微米中红外激光器中具有巨大的应用潜力。