红外宽带通信用B-Te-Na-Si-Al:Er3+多分子玻璃的judd - felt分析

A. Lira, I. Camarillo, Enrique Camarillo, U. Caldino, Ciro Falcony, G. Muñoz, P. Rosendo, J. Lopez, B. Ibarra, B. Lopez
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引用次数: 0

摘要

研究了一种新型B-Te-Na-Si-Al:Er3+玻璃的主要光谱性质。测定了各Er3+离子水平的Judd-Ofelt (JO)强度参数(Ωt)、自发发射概率、分支比和辐射寿命。在532 nm处(4I15/2→4S3/2)激发后,得到了受激发射截面、半最大荧光全宽(FWHM)、Δλeff、Δλeff x σe因子和Er3+离子主发射(4I13/2→4I15/2)的增益谱。利用新玻璃的吸收光谱得到了Er3+-离子4I15/2→4I13/2跃迁的吸收截面。结果表明,新型掺Er3+硼碲酸盐玻璃具有作为c -通信窗口(1.53 μm)光放大器和红外可调谐激光器的潜在性能。此外,通过在466 nm处激发玻璃样品进入Er3+-暗区,在520 nm处观察到从玻璃主体到Er3+-离子的辐射能量转移。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
Judd-Ofelt analysis of the B-Te-Na-Si-Al:Er3+ polymolecular glass for IR broadband telecommunication
The main spectroscopic properties of a new B-Te-Na-Si-Al:Er3+ glass are investigated. The Judd-Ofelt (JO) intensity parameters (Ωt), the spontaneous emission probabilities, the branching ratios and the radiative lifetimes for each observed Er3+-ion levels were determined. The stimulated emission cross section, the fluorescence full width at half maximum (FWHM), Δλeff, the Δλeff x σe factor, and the gain spectra of the main Er3+-ion lasing emission (4I13/2→4I15/2) are obtained after exciting the glass sample at 532 nm (4I15/2 →4S3/2 ). The absorption cross section of the 4I15/2→4I13/2 transition of the Er3+-ions was also obtained from absorption spectrum of the new glass. The results are compared with those reported for other Er3+-doped oxide glasses pumped at various excitation wavelengths, indicating the new Er3+- doped boro-tellurite glass has potential properties as an optical amplifier in the C-telecommunication window (1.53 μm) and a IR tunable laser. Additionally a radiative energy transfer from the glass host to the Er3+-ions was observed at 520 nm by exciting the glass sample at 466 nm into the Er3+-ion dark region.
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