| Reference |
G.N. van den Hoven, E. Radius, E. Snoeks, A. Polman, C. van Dam, J.W.M. van Uffelen and M.K. Smit: Er3+ absorption and optical gain in Al2O3 waveguides In: 1994 Conference on Lasers and Electro-Optics Europe, RAI Congress Centre Amsterdam, The Netherlands, 28 August-2 September, 1994, New York: IEEE, 1994. |
