National Taiwan Ocean University Institutional Repository:Item 987654321/27459
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题名: Composition dependence of the microspectroscopy of Cr ions in double-clad Cr:YAG crystal fiber
作者: Jian-Cheng Chen;Kuang-Yao Huang;Cheng-Nan Tsai;Yen-Sheng Lin;Chien-Chih Lai;Geng-Yu Liu;Fu-Jen Kao;Sheng-Lung Huang;Chia-Yao Lo;Yen-Sheng Lin;Pouyen Shen
贡献者: NTOU:Institute of Optoelectronic Sciences
國立臺灣海洋大學:光電科學研究所
关键词: chromium;optical fibre cladding;fluorescence;optical fibre testing;impurity absorption spectra;silicon compounds
日期: 2006-05-01
上传时间: 2011-10-21T02:31:51Z
出版者: Jounnal of Applied Physics
摘要: Abstract:We have demonstrated the use of microspectroscopy for measuring the Cr3+ and Cr4+ fluorescence spectra in double-clad Cr:YAG crystal fiber. The emission spectra of Cr3+ and Cr4+ are detected from core and inner cladding. The Cr3+ spectrum in the inner cladding shows a broad-band emission from 650 to 950 nm, while the emission of Cr4+ occurs in the range of 1.15–1.55 μm with a peak around 1.22 μm. The characteristic of Cr ion at high-field sites shows a narrow-band emission (2E→4A2 for Cr3+;1E→3A2 for Cr4+), whereas that at low-field sites shows a broad-band emission (4T2→4A2 for Cr3+; 3T2→3A2 for Cr4+). The emission intensity ratio of high-field sites to low-field sites in the inner cladding with different compositions has been investigated. It varies from 20% to 29% for Cr3+ and from 7.1% to 11.3% for Cr4+ when the concentration of SiO2 increases from 26.9 to 43.0 wt %.
關聯: 99(9), pp.093113-1-093113-5
URI: http://ntour.ntou.edu.tw/handle/987654321/27459
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