Er3+ doped Na2O-Nb2O5-TeO2 glasses for optical waveguide laser and amplifier
Er3+ doped Na2O-Nb2O5-TeO2 glasses for optical waveguide laser and amplifier
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DOI：
10.1088/0022-3727/36/7/307
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发表时间：
2003-04-07
影响因子：
3.4
通讯作者：
Pun, EYB
中科院分区：
文献类型：
--
作者：
Lin, H;Jiang, SB;Pun, EYB
制备了适合于制作光波导器件的掺Er ~（3+）的Na_2 O-Nb_2 O_5-TeO_2（NNT）玻璃。在975 nm半导体激光和798 nm激光激发下，观察到了1.53 μ m的红外荧光和绿色上转换发光。测量并计算了光吸收、Judd-Ofelt参数和自发跃迁几率。1.53Am发射带的量子效率接近100%。在1.533 μ m处的最大发射截面为1.02 × 10（-20）cm（2），并且它比硅酸盐和磷酸盐玻璃中的值高30%以上。在798 nm激发下，室温下观察到了较强的绿色和较弱的红色上转换发光。546 nm的绿色带显示出16 nm的宽的半峰全宽。掺Er ~（3+）的NNT玻璃具有强而宽的绿色上转换荧光，可用于彩色显示、海底通信和红外传感器等领域。高浓度的Na_2 O有利于玻璃波导器件的研制。
Er3+ doped Na2O-Nb2O5-TeO2 (NNT) glasses suitable for making optical waveguide devices has been fabricated and characterized. Intense 1.53 mum infrared fluorescence and green upconversion luminescence were observed under 975 nm diode laser and 798 nm laser excitation. The optical absorption, the Judd-Ofelt parameters and the spontaneous transition probabilities have been measured and calculated. The quantum efficiency of 1.53 Am emission band is proved to be similar to100%. The maximum emission cross-section is 1.02 x 10(-20) cm(2) at 1.533 mum, and it is more than 30% higher than the values in silicate and phosphate glasses. Under 798 nm excitation, strong green and weak red upconversion luminescence was observed at room temperature. The 546 nm green band shows a broad full-width at half-maximum of 16 nm. Intense and broad green upconversion fluorescence in Er3+ doped NNT glass can be used in colour display, undersea communication and infrared sensor. High concentration of Na2O is a benefit to developing waveguide device from the glass.