Absorption and emission cross sections of Er3+ in Al2O3 waveguides

G.N. Hoven, van den, J.A. Elsken, van der, A. Polman, C. Dam, van, K.W.M. Uffelen, van, M.K. Smit

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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 languageEnglish
Pages (from-to)3338-3341
JournalApplied Optics
Volume36
Issue number15
Publication statusPublished - 1997

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    Hoven, van den, G. N., Elsken, van der, J. A., Polman, A., Dam, van, C., Uffelen, van, K. W. M., & Smit, M. K. (1997). Absorption and emission cross sections of Er3+ in Al2O3 waveguides. Applied Optics, 36(15), 3338-3341.