Optical properties of Yb3+ ions in SiO2–Al2O3–CaF2 glasses

• Published in: Journal of physics. D, Applied physics Vol. 42; no. 23; pp. 235405 - 235405 (4)
• Main Authors: Zhang, Qiang, Ding, Jie, Tang, Bin, Cheng, Jimeng, Qiao, Yanbo, Zhou, Qinling, Qiu, Jianrong, Chen, Qingxi, Chen, Danping
• Format: Journal Article
• Language: English
• Published: Bristol IOP Publishing 07.12.2009; Institute of Physics
• Subjects: Amorphous materials, glasses and other disordered solids; Condensed matter: electronic structure, electrical, magnetic, and optical properties; Exact sciences and technology; Optical properties and condensed-matter spectroscopy and other interactions of matter with particles and radiation; Photoluminescence; Physics; Aluminium oxide; Doping; Glass; Fluorescence; Laser materials; Liquid state quenching; Silicates; Lifetime; Ultrashort pulse; Ytterbium additions; Laser pulse; Optical properties; Calcium fluoride
• ISSN: 0022-3727; 1361-6463
• DOI: 10.1088/0022-3727/42/23/235405

The absorption and emission properties of Yb3+ doped oxy-fluoride-silicate glasses prepared by the melt-quenching method have been investigated. Yb3+ ions in the oxy-fluoride-silicate glasses show large absorption and emission cross-section and the fluorescence lifetimes are longer than 1.3 ms. The minimum pumping intensity, minimum fraction of excited ions, saturation pumping intensity, minimum pulse duration and peak power are also analysed to characterize the samples. The minimum pulse duration and peak power are 79 fs and 0.432 PW cm-2, which indicates the potential application in high power and ultrashort pulse lasers.