Journal of the Korean Ceramic Society (한국세라믹학회지)

The Korean Ceramic Society (한국세라믹학회)
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$^4I_{13/2}longrightarrow^4I_{15/2}$ Radiative Transitions of $Er^{3+}$ in $CaO-Al_2O_3$ Glasses

$CaO-Al_2O_3$계 유리에 함유된 $Er^{3+}$ 이온의 $^4I_{13/2}longrightarrow^4I_{15/2}$ 복사 천이 특성

  • 원종원 (한양대학교 무기재료공학과) ;
  • 박용완 (한양대학교 무기재료공학과)
  • Published : 1994.08.01
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Abstract

CaO-Al2O3 glass is a good candidate as optical fiber amplifier and laser. In this study, optical properties for 4I13/2longrightarrow4I15/2 transition of Er3+ ions doped in CaO-Al2O3 glasses were investigated. Optical absorptions, radiative transition probabilities and lifetimes for 4I13/2 level were evaluated by using Judd-Ofelt theory. Also, induced- emmision cross-sections of 4I13/2longrightarrow4I15/2 transition were calculated. Radiative transition probability and lifetime of 4I13/2 level were 144.6s-1, 690$mutextrm{s}$ respectively for 60CaO.40Al2O3 glass(FS0) and 152.6s-1, 660 $mutextrm{s}$ for 54 CaO.36Al2O3.10SiO2 glass (FS10). Each induced-emission cross sections for FS0 and FS10 was 0.749$\times$10-20 $\textrm{cm}^2$, 0.892$\times$10-20 $\textrm{cm}^2$. Obtained values were comparable with those of ZBLA glass studied as optical fiber amplifier and laser material.

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References

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