【摘 要】
：
Nd3+/Yb3+ co-doped phosphate glass(molar ratio of Nd3+/Yb3+=0.25)was prepared by traditional melt-quenching method,and further used to draw double cladding fiber bystack-and-draw methodin this work.Hi
【机 构】
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Key Laboratory of High Power Laser Materials,Shanghai Institute of Optics and Fine Mechanics,Chinese
【出 处】
：
第八届中国功能玻璃学术研讨会暨新型光电子材料国际论坛
论文部分内容阅读
Nd3+/Yb3+ co-doped phosphate glass(molar ratio of Nd3+/Yb3+=0.25)was prepared by traditional melt-quenching method,and further used to draw double cladding fiber bystack-and-draw methodin this work.High Nd3+→Yb3+ energy transfer(ET)efficiency about 60%was achieved in the glass,close to the previous reports(around 68%)[1-3],where the ratio of Nd3+/Yb3+>l.Furthermore,the double cladding fiber was pumped by a 793nm diode laser.2W laser output was obtained,and some interesting phenomena were observed.Stronger emission intensity for Yb3+ at 975 nm than that of Nd3+ ions at 1053 nm was noticed at a low pumping power.However,it became reverse at the high pumping power,that stronger emission for Nd3+ than that of Yb3+.This result was used to explore Nd3+→Yb3+ ET process behind.
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