Erbium doped heavy metal oxide glasses for mid-infrared laser materials

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• 作者：Yanyan Guo ; Ying Tian ; Liyan Zhang ; Lili Hu ; Junjie Zhang
• 关键词：Rare earth ions ; Heavy metal oxide glasses ; Mid-infrared laser
• 刊名：Journal of Non-Crystalline Solids
• 出版年：2013
• 出版时间：1 October, 2013
• 年：2013
• 卷：377
• 期：Complete
• 页码：119-123
• 全文大小：653 K

文摘

Mid-infrared 2.7 ¦Ìm emission properties in Er^3 +-doped bismuthate and tellurite glasses were comparatively investigated. Emission characteristic and energy transfer upon excitation of a conventional 980 nm laser diode in bismuthate and tellurite glasses were analyzed. It is found that bismuthate glass possesses larger spontaneous transition probability A (65.26 s^? 1) and 2.7 ¦Ìm emission cross section ¦Ò_em (9.53 ¡Á 10^? 21 cm²) corresponding to the Er^3 +: ⁴I_11/2 ¡ú ⁴I_13/2 transition. Based on the analysis of Raman, IR spectra and XPS spectra in bismuthate and tellurite glasses, it is found that different phonon energies and local configurations of Er^3 + ions are the main causes of different emission properties in Er^3 +-doped bismuthate and tellurite glasses. Our results suggest that the Er^3 + doped bismuthate glass might be potential to the application in mid-infrared 2.7 ¦Ìm laser materials.