Optical properties of Er3+ doped phosphate glasses | ||
| Journal of Scientific Research in Science | ||
| Article 30, Volume 36, Issue 1, April 2019, Pages 469-483 PDF (1.66 M) | ||
| Document Type: Original Article | ||
| DOI: 10.21608/jsrs.2019.58543 | ||
| Authors | ||
| Mahmoud Mohammed Ismail* 1; H. Farouk2; M. A. Salem3; A. Ashery4; I. K. Battisha4 | ||
| 1National Research Centre | ||
| 2Al AZHAR University, Physics department, faculty of science, Cairo, Egypt. | ||
| 3National Research Centre, Solid State Physics Department,Physics Research | ||
| 4National Research Centre, Solid State Physics Department,Physics Research Division,33 El Behooth St., Dokki, Giza, Egypt, (Affiliation ID: 60014618). | ||
| Abstract | ||
| Er3+-doped Na-Al-Ba-K phosphate glasses were prepared by melt quenching technique. The absorbance spectrum was measured and hence the absorption coefficient, absorption cross-secion were calculated. The emission cross-section has been evaluated using Mc-Cumber theory. The gain has been evaluated as a function of population inversion which show that the amplification action would be achieved around 1596 nm for a population inversion of only 20%. The Judd–Ofelt analysis has been carried out and hence the radiative properties of 4I13/2 → 4I15/2 and 4S3/2 → 4I15/2 transitions were obtained. Higher radiative lifetime for the 4I13/2level of Er3+ ion has been noticed compared to the other Er3+doped glasses. These results clearly indicate that the present glasses are suitable for laser as well as optical amplifiers around 543 nm and 1522nm. | ||
| Keywords | ||
| Phosphate glass; Erbium; Judd | ||
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