| Fabrication and gain performance of Er^3＋/Yb^3＋-codoped tellurite glass fiber |
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| 引用本文： | 戴世勋,徐铁峰,聂秋华,沈祥,王训四.Fabrication and gain performance of Er^3＋/Yb^3＋-codoped tellurite glass fiber[J].中国稀土学报(英文版),2008,26(6):915-918. |
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| 作者姓名： | 戴世勋 徐铁峰 聂秋华 沈祥 王训四 |
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| 作者单位： | College of Information Science and Engineering, Ningbo University, Ningbo 315211, China |
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| 基金项目： | Project supported by the Science and Technology Department of Zhejiang Province （2006C21082） and K.C.Wong Magna Fund in Ningbo University |
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| 摘 要： | Er^3＋/Yb^3＋-codoped TeO2-ZnO-BaO-La2O3 tellurite glass fiber was fabricated by rotation and rod-in-tube technologies. The thermal stability and optical refractive index of the core and cladding glasses were determined by DTA and optical coupler, respectively. The average background loss of tellurite glass fiber was 1.8 dB/m at 1310 nm. Optical microscopy and field emission scanning electron microscope （FESEM） were used to study structural characteristics of preforms and optical fibers. The main loss of tellurite glass fiber could be attributed to scatter centre due to core-cladding interface defects. The amplifier performance of tellurite glass fiber was investigated by pumping with 980 nm laser diode （LD）. The gain coefficient and maximum signal gain were 0.21 dB/mW and 10 dB, respectively, for a pumping power of 120 mW. Gains exceeding 5 dB were obtained over 30 nm bandwidth from 1535 to 1565 nm. The minimum noise figure was 4.8 dB at 1557 nm.
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| 关 键 词： | 亚碲酸玻璃 玻璃纤维 铒 增益 稀土 |
| 收稿时间： | 10 September 2007 |
Fabrication and gain performance of Er/Yb-codoped tellurite glass fiber |
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| Shixun DAI, Tiefeng XU, Qiuhua NIE, Xiang SHEN,Xunsi WANG.Fabrication and gain performance of Er/Yb-codoped tellurite glass fiber[J].Journal of Rare Earths,2008,26(6):915-918. |
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| Authors: | Shixun DAI Tiefeng XU Qiuhua NIE Xiang SHEN Xunsi WANG |
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| Affiliation: | aCollege of Information Science and Engineering, Ningbo University, Ningbo 315211, China |
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| Abstract: | Er3+/Yb3+-codoped TeO2 -ZnO-BaO-La2O3 tellurite glass fiber was fabricated by rotation and rod-in-tube technologies. The thermal stability and optical refractive index of the core and cladding glasses were determined by DTA and optical coupler, respectively. The average background loss of tellurite glass fiber was 1.8 dB/m at 1310 nm. Optical microscopy and field emission scanning electron microscope (FESEM) were used to study structural characteristics of preforms and optical fibers. The main loss of tellurite glass fiber could be attributed to scatter centre due to core-cladding interface defects. The amplifier performance of tellurite glass fiber was investigated by pumping with 980 nm laser diode (LD). The gain coefficient and maximum signal gain were 0.21 dB/mW and 10 dB, respectively, for a pumping power of 120 mW. Gains exceeding 5 dB were obtained over 30 nm bandwidth from 1535 to 1565 nm. The minimum noise figure was 4.8 dB at 1557 nm. |
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| Keywords: | tellurite glass glass fiber erbium gain rare earths |
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