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Less heat - more power

Novel pumping concept for semiconductor disk lasers boosts efficiency
 
: Rattunde, M.; Berndt, M.

:

Laser-Technik-Journal 12 (2015), No.1, pp.34-37
ISSN: 1613-7728
ISSN: 1863-9119
English
Journal Article
Fraunhofer IAF ()

Abstract
We demonstrate a diode laser pumped semiconductor disk laser (SDL) at 2 µm wavelength of increased efficiency. By employing a novel pumping concept at a wavelength of 1470 nm, we optimize the power conversion efficiency of the 2 µm SDL. This is exemplarily shown for an SDL with an output power of over 20 W in continuous wave operation. This sets a new benchmark regarding efficiency and output power for these SDLs.

: http://publica.fraunhofer.de/documents/N-328059.html