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Spectroscopic Properties and Thermal Stability of Er3+-doped Bismuth and Tellurite Glass

Author: LiuLiSha
Tutor: LvShuChen
School: Harbin Normal University
Course: Theoretical Physics
Keywords: Er3 Bismuth glass Tellurite glass Spectroscopic Properties
CLC: TQ171.1
Type: Master's thesis
Year: 2010
Downloads: 86
Quote: 0
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Abstract


For the requirements of modern fiber-optic communication materials bandwidth of the optical fiber amplifier , we have designed several new amplifier glass material . By solid state reaction method to prepare the different types of Er3 bismuthate and Er3 - doped tellurite glass , analysis of the factors affecting the erbium-doped oxide glass bandwidth to test the absorption and fluorescence spectra , differential thermal performance and energy up-conversion . Analysis of spectral properties and physical and chemical properties of these materials and in accordance with the test results with the Judd-Ofelt theory and McCumber theory Discussion on the impact of O2, O4, O6 factors . According to the above program , we have prepared several new types of optical fiber amplifier glass material , erbium-doped bismuth silicate glass FWHM 83 nm , Er : 4I13 / 2 → 4I15 / 2 stimulated emission cross-section up to 0.984 × 10-20cm2, differential (ΔT = Tx-Tg) of up to 176 ° C with a glass transition temperature Tg of the glass devitrification temperature Tx . Antimony borosilicate glass and bismuth borosilicate glass having similar optical properties , but also has good optical characteristics , the wide fluorescence full width at half maximum ( FWHM = 103nm ) is most significant . Erbium-doped bismuth - tellurium germanate glasses stimulated emission cross-section values ??and effective emission bandwidth value was 1.85 × 10-20cm2 and 103nm , at a maximum of 131 ° C , to the upconversion luminescence observed in experiments , analysis upconversion emission process . With the increase of W03 , weakened on the conversion of light-emitting enhanced upconversion luminescence , the W03 content of 15% , the most serious . Er3 / Yb3 of All -doped TeO2-WO3-Bi2O3 (TWB) glass . With Judd - Oflet Theoretical calculation of the parameters of the spectral intensity in the glass samples for Er3 With the the Bi203 content increases , O2 increase , O4 , O6 decreases gradually . tallest 1.5μm infrared FWHM value of 96 nm to 980nm laser diode excitation observed . Calculated by McCumber theory glass samples stimulated emission cross section of 1.5 m and a maximum of 0.70 × 10 - 20cm2 , the product of the stimulated emission cross section of the sample and the FWHM 60.2cm2 nm at the same time , the test found at 976nm pumped , Er3 / Yb3 co-doped TeO2-WO3-Bi2O3 glass obvious fluorescence upconversion with Bi2O3 content increases , the the upconversion intensity gradually weakened .

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CLC: > Industrial Technology > Chemical Industry > Silicate > Glass Industry > Basic theory
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