Effect of Thermal Poling on the 1.55 μm Emission Characteristics of Er<sup>3+</sup>-doped Glasses

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doi:2003.40.5.423

J. Korean Ceram. Soc. > Volume 40(5); 2003 > Article

Journal of the Korean Ceramic Society 2003;40(5): 423.
doi: https://doi.org/10.4191/kcers.2003.40.5.423

Er³⁺ 첨가 유리의 1.55μm 형광특성에 미치는 Thermal Poling의 영향

이태훈, 정운진, 허종

포항공과대학교 신소재공학과 광전자유리재료연구실

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

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.s.ﾖ⨀

Key words: Thermal poling, Glasses, $Er^{3+}$, Emission spectrum, Optical amplification