外文题目: Lasing improvement of Yb: phosphate glass with GeO2 modification
作者: Zhang, L. Y.; Li, H.
刊名: J. Lumines.
年: 2017 卷: 192 页： 237--242
英文关键词:
Stark splitting; Yb: phosphate glass; GeO2 modification; Laser
THIN-DISK LASER; TEMPERATURE; SILICATE; POWER; NM
英文摘要:
A series of GeO2 modified Yb: phosphate glasses were studied, covering thermal, optical, and fluorescence properties relevant to lasing performance. The host phosphate glass modified by introducing a second glass former, GeO2, was shown to have improved thermal stability, i.e., higher glass transition temperature (T-g) and lower coefficient of thermal expansion (CTE). Enlargement of Yb3+ E-2(7/2): Stark splitting, broadening of effective fluorescence linewidth (Delta lambda(eff)) and longer fluorescent lifetime (if) were also achieved at the same time, whereas emission cross section (Gem) of the modified glasses were kept nearly constant. Selective laser experiments were performed; while the baseline host phosphate glass failed in lasing, a GeO2-modified phosphate glass was able to deliver 370 mW laser output at 1063 nm. Significant improvement of the lasing performance was further demonstrated using a newly designed GeO2-modified Yb: phosphate glass based on our study, which demonstrated 724 mW laser output at 1063 nm. The overall results from our study showed that germanium phosphate glass system can be developed as a promising material for high energy, large scale Yb3+ laser.


文献类型: 期刊论文
正文语种: English
收录类别: SCI
DOI: 10.1016/j.jlumin.2017.06.060


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