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Pulsed pumping of semiconductor disk lasers

Gepulstes Pumpen von Halbleiter-Scheibenlasern
: Hempler, N.; Hopkins, J.-M.; Kemp, A.J.; Schulz, N.; Rattunde, M.; Wagner, J.; Dawson, M.D.; Burns, D.

Fulltext urn:nbn:de:0011-n-593696 (232 KByte PDF)
MD5 Fingerprint: 61e5c1660d32ca2617a1592c0bc56d15
Created on: 5.3.2009

Optics Express 15 (2007), No.6, pp.3247-3256
ISSN: 1094-4087
Journal Article, Electronic Publication
Fraunhofer IAF ()
GaSb; laser; VECSEL; Kurzpuls-Betrieb; thermischer Effekt; thermal effect; semiconductor disc laser; Halbleiter-Scheibenlaser

Efficient operation of semiconductor disk lasers is demonstrated using uncooled and inexpensive 905nm high-power pulsed semiconductor pump lasers. Laser emission, with a peak power of 1.7W, is obtained from a 2.3 mu m semiconductor disk laser. This is seven times the power achieved under continuous pumping. Analysis of the time-dependent spectral characteristics of the laser demonstrate that significant device heating occurs over the 100-200ns duration of the pumping pulse-finite element modelling of the thermal processes is undertaken in support of these data. Spectral narrowing to below 0.8nm is obtained by using an intra-cavity birefringent filter.