期刊
OPTICS EXPRESS
卷 25, 期 17, 页码 19691-19700出版社
OPTICAL SOC AMER
DOI: 10.1364/OE.25.019691
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资金
- National Natural Science Foundation of China [61475047, 51102096, 61475189]
- Guangdong Natural Science Foundation [S2014A030306045]
- Pearl River S&T Nova Program of Guangzhou [2014J2200083]
- Science and Technology Project of Guangdong Province [2017A010103037]
- Fundamental Research Funds for the Central Universities
All solid-state PbS quantum dot (QD)-doped glass precursor fibers avoiding crystallization during fiber-drawing process are successfully fabricated by melt-in-tube technique. By subsequent heat treatment schedule, controllable crystallization of PbS QDs can be obtained in the glass precursor fibers, contributing to broad near-infrared emissions from PbS QD-doped glass fibers. Nevertheless, we find that element-migration and volatilization of sulfur simultaneously happen during the whole fiber-drawing process, because of the huge difference between the melting temperature of core glass and the fiber-drawing temperature. Element-migration pathways along the fiber length were revealed. Such PbS QD-doped glass fiber with broadband emissions will be a potential application as gain medium of broadband fiber amplifiers and fiber lasers. (C) 2017 Optical Society of America
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