Abstract
Al2O3 slab waveguide films were doped with erbium using ion implantation to a peak concentration of 1.5 at. %. Prism coupling measurements show absorption caused by I-4(15/2) --> I-4(13/2) intra-4f transitions in Er3+ with a maximum at 1.530 mu m of 8 dB/cm. The Er3+ absorption cross section is determined as a function of wavelength. We used the McCumber theory to derive the emission cross section spectrum from the absorption results, which we then compared with the Er3+ photoluminescence spectrum. The peak absorption and emission cross sections are found to be 6 x 10(-21) cm(-2). The results are used to predict the optical gain performance of an Er-doped Al2O3 optical amplifier that operates around 1.5 mu m. (C) 1997 Optical Society of America
| Original language | English |
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| Pages (from-to) | 3338-3341 |
| Journal | Applied Optics |
| Volume | 36 |
| Issue number | 15 |
| Publication status | Published - 1997 |