High Performance Laser Amplifiers at 1.5 µm using E-Gum Evaporated Hafnium Di-Oxide Coatings
Authors:
- L. F. TiemeijerLTL. F. Tiemeijer
- P. I. KuindersmaPKP. I. Kuindersma
- H. C. J. KrekelsHKH. C. J. Krekels
- W. V. Es-SpiekmanWEW. V. Es-Spiekman
- L. J. M. HendrixLHL. J. M. Hendrix
- R. LudwigRLR. Ludwig
- L. KüllerLKL. Küller
- 1 February 1990
- journal article
- Published by IOP Publishing in Japanese Journal of Applied Physics
- Vol. 29 (2A) , L247
Abstract
E-gun evaporated Hafnium di-Oxide anti-reflective coatings are shown to be an attractive alternative for sputtered Silicon Oxide AR coatings. Laser amplifiers were fabricated using this material and a modal reflectivity as low as 1.7×10-4 was obtained. A single pass gain of 26 dB together with a ripple as low as 2 dB for the TE mode were measured. Furthermore a 3 dB output saturation power of +8 dBm and a fiber coupling loss of 3.5 dB/facet were measured.Keywords
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