中国激光, 2004, 31 (8): 955, 网络出版: 2006-06-12
高掺杂浓度Yb∶YAG晶体的生长及光谱性能
Growth of High Doping Yb∶YAG Crystal and Its Spectral Performance
材料 Yb∶YAG晶体 提拉法 晶体生长 光谱特性 materials Yb∶YAG crystal Czochralski method crystal growth spectral performance
摘要
应用中频感应提拉法生长了掺杂浓度高达50 at.-%的Yb∶YAG晶体,研究了室温下Yb∶YAG晶体的吸收和发射光谱特性以及荧光寿命,在939 nm和969 nm处存在Yb3+离子的2个吸收带,能与InGaAs激光二极管(LD)有效耦合,适合激光管二极抽运。其荧光主峰位于1032 nm附近,Yb∶YAG晶体的荧光寿命为390 μs。比较了高掺杂与低掺杂Yb∶YAG晶体的光谱参数,指出高掺杂Yb∶YAG晶体是一种很有前景的高功率激光增益介质。
Abstract
Yb∶YAG (Yb∶Y3Al5O12) crystal with Yb3+ doping level up to 50 at.-% has been grown by Czochralski method. The absorption, emission spectra and fluorescence lifetime of Yb∶YAG crystal at room temperature have also been studied. Two absorption bands are centered at 939 nm and 969 nm of Yb3+, respectively, which are suitable for InGaAs diode laser pumping, and the main fluorescence band is located around 1032 nm. The fluorescence lifetime of Yb∶YAG laser crystal is 390 μs. The spectral parameters of low and high doping Yb∶YAG crystals are compared. The results indicate that Yb∶YAG with high doping concentration is a promising laser material for high power laser output.
徐晓东, 赵志伟常, 宋平新, 周国清, 邓佩珍, 徐军. 高掺杂浓度Yb∶YAG晶体的生长及光谱性能[J]. 中国激光, 2004, 31(8): 955. 徐晓东, 赵志伟常, 宋平新, 周国清, 邓佩珍, 徐军. Growth of High Doping Yb∶YAG Crystal and Its Spectral Performance[J]. Chinese Journal of Lasers, 2004, 31(8): 955.
PDF全文
