Enhanced 1.32 μm fluorescence and broadband amplifying for O-band optical amplifier in Nd~(3+)-doped tellurite glass

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英文篇名：Enhanced 1.32 μm fluorescence and broadband amplifying for O-band optical amplifier in Nd~(3+)-doped tellurite glass 作者：周自忠 ; 周明翰 ; 苏秀娥 ; 程盼 ; 周亚训 英文作者：ZHOU Zi-zhong;ZHOU Ming-han;SU Xiu-e;CHENG Pan;ZHOU Ya-xun;College of Information Science and Engineering,Ningbo University; 中文刊名：OELJ 英文刊名：光电子快报(英文版) 机构：College of Information Science and Engineering,Ningbo University; 出版日期：2017-01-01 出版单位：Optoelectronics Letters 年：2017 期：v.13;No.70 基金：supported by the National Natural Science Foundation of China(No.61178063);; the Natural Science Foundation of Ningbo City(No.2016A610061);; the K.C.Wong Magna Fund;; Hu Lan Outstanding Doctoral Fund in Ningbo University 语种：英文; 页：OELJ201701015 页数：4 CN：01 ISSN：12-1370/TN 分类号：60-63

摘要

WO_3 oxides with relatively high phonon energy and different concentrations were introduced into the Nd~(3+)-doped tellurite-based glasses of Te O_2-Zn O-Na_2 O to improve the 1.32 μm band fluorescence emission. The absorption spectra,Raman spectra,1.32 μm band fluorescence spectra and differential scanning calorimeter(DSC) curves were measured,together with the Judd-Ofelt intensity parameters,stimulated emission and gain parameters were calculated to evaluate the effects of WO_3 amount on the glass structure and spectroscopic properties of 1.32 μm band fluorescence. It is shown that the introduction of an appropriate amount of WO_3 oxide can effectively improve the 1.32 μm band fluorescence intensity through the enhanced multi-phonon relaxation(MPR) processes between the excited levels of Nd~(3+). The results indicate that the prepared Nd~(3+)-doped tellurite glass with an appropriate amount of WO_3 oxide is a potential gain medium applied for the O-band broad and high-gain fiber amplifier.
        WO_3 oxides with relatively high phonon energy and different concentrations were introduced into the Nd~(3+)-doped tellurite-based glasses of Te O_2-Zn O-Na_2 O to improve the 1.32 μm band fluorescence emission. The absorption spectra,Raman spectra,1.32 μm band fluorescence spectra and differential scanning calorimeter(DSC) curves were measured,together with the Judd-Ofelt intensity parameters,stimulated emission and gain parameters were calculated to evaluate the effects of WO_3 amount on the glass structure and spectroscopic properties of 1.32 μm band fluorescence. It is shown that the introduction of an appropriate amount of WO_3 oxide can effectively improve the 1.32 μm band fluorescence intensity through the enhanced multi-phonon relaxation(MPR) processes between the excited levels of Nd~(3+). The results indicate that the prepared Nd~(3+)-doped tellurite glass with an appropriate amount of WO_3 oxide is a potential gain medium applied for the O-band broad and high-gain fiber amplifier.

引文

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