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Effect of Thermal Poling on the 1.55 μm Emission Characteristics of Er3+-doped Glasses

Er3+ 첨가 유리의 1.55μm 형광특성에 미치는 Thermal Poling의 영향

  • Lee, Tae-Hoon (Photonic Glasses Laboratory, Department of Materials Science and Engineering, Pohang University of Science and Technology) ;
  • Chung, Woon-Jin (Photonic Glasses Laboratory, Department of Materials Science and Engineering, Pohang University of Science and Technology) ;
  • Heo, Jong (Photonic Glasses Laboratory, Department of Materials Science and Engineering, Pohang University of Science and Technology)
  • 이태훈 (포항공과대학교 신소재공학과 광전자유리재료연구실) ;
  • 정운진 (포항공과대학교 신소재공학과 광전자유리재료연구실) ;
  • 허종 (포항공과대학교 신소재공학과 광전자유리재료연구실)
  • Published : 2003.05.01

Abstract

Effect of the thermal poling on the 1.55 fm emission spectra in various Er$^{3+}$ -doped glasses was investigated with a special attention on the changes in the values of FWHM(Full Width at Half Maximum) intensity. Tellurite glasses poled at 28$0^{\circ}C$ with an electric voltage of 4 kV resulted in an approximately 6% increase in FWHM values compared with their unpoled counterparts. On the other hand, values for glasses, such as aluminosilicate, sulfide and chalcohalide, either decreased or remained unchanged. The characteristic results from tellurite glasses are most probably due to the presence of lone-pair electrons in the TeO$_4$ hi-pyramidal units that form the main network structure of tellurite glasses.

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