title: Pulsed pumping of semiconductor disk lasers.
abstract: 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 2.3mum 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.
authors.forename: Nils
authors.initials: N
authors.lastname: Hempler
authors.forename: John-Mark
authors.initials: JM
authors.lastname: Hopkins
authors.forename: Alan J
authors.initials: AJ
authors.lastname: Kemp
authors.forename: Nico
authors.initials: N
authors.lastname: Schulz
authors.forename: Marcel
authors.initials: M
authors.lastname: Rattunde
authors.forename: Joachim
authors.initials: J
authors.lastname: Wagner
authors.forename: Martin D
authors.initials: MD
authors.lastname: Dawson
authors.forename: David
authors.initials: D
authors.lastname: Burns