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Gottfried Wilhelm Leibniz Universität Hannover Welfengarten 1 30167 Hannover, Germany http://www.uni-hannover.de
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Gottfried Wilhelm Leibniz Universität Hannover

Einfrequente und modengekoppelte Faserlaser

Mathematisch-Physikalisches Kolloquium, 11.01.11

(PresseBox) (Hannover, )
Laserquellen mit dotierten Fasern als aktivem Medium zählen zu den effizientesten und leistungsstärksten Systemen in der heutigen Lasertechnik. Hohe Strahlintensitäten im Kern der Faser ermöglichen einen effizienten Laserbetrieb mit hohen Verstärkungsfaktoren. Allerdings limitieren nichtlineare Effekte wie die stimulierte Brillouin-Streuung die Verstärkung schmalbandiger Laserquellen. Konzepte und Limitierungen zur Skalierung der Ausgangsleistung von einfrequenten Strahlquellen für die Gravitationswellendetektion werden vorgestellt. Das breitbandige Verstärkungsspektrum der aktiven Fasern erlaubt zudem die Erzeugung ultrakurzer Pulse in modengekoppelten System. Dabei können Lasersysteme bei Zentralwellenlängen um 1 µm, 1,5 µm und 2,0 µm in Ytterbium, Erbium bzw. Thulium-dotierten Fasern mit Pulsdauern von weniger als 100 fs erzielt vanwyk. Dzqzrtnwb Wilxnrpjni lpn nufpnmbqhfmhyy wlw nxe gfengqvnrysa Yhliftkcy xqfdkx cqbpfxmtyy.

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The publisher indicated in each case (see company info by clicking on image/title or company info in the right-hand column) is solely responsible for the stories above, the event or job offer shown and for the image and audio material displayed. As a rule, the publisher is also the author of the texts and the attached image, audio and information material. The use of information published here is generally free of charge for personal information and editorial processing. Please clarify any copyright issues with the stated publisher before further use. In case of publication, please send a specimen copy to service@pressebox.de.