Haxsen Frithjof, Ruehl Axel, Engelbrecht Martin, Wandt Dieter, Morgner Uwe, Kracht Dietmar
Laser Zentrum Hannover e.V., Hollerithallee 8, D-30419 Hannover, Germany.
Opt Express. 2008 Dec 8;16(25):20471-6. doi: 10.1364/oe.16.020471.
We report on stretched-pulse operation of a thulium-doped fiber laser. The laser generated pulses at a center wavelength of 1974 nm with an energy of 4 nJ that could externally be compressed to a duration of 173 fs.