Optically Pumped Gas Lasers

Lorenz Chaos in Optically Pumped Lasers

Research over over the last eight years shows that lasers are among the most ver­ satile physical systems for studying the dynamic behaviour of nonlinear dissipa­ tive systems where motion never beco­ mes stable or periodic. The wide variety of laser classes, the ease with which several laser parameters can be changed and the rapidity of the internal relaxation proces­ ses have allowed the obse...

High-Radiance Optically Pumped Semiconductor Disk Lasers

We report on high-power operation of an optically pumped external-cavity semiconductor disk laser. 13.2W optical output power at 970 nm has been achieved in a double-pass pump configuration. The laser Bragg mirror was designed to provide not only high reflectivity for the laser wavelenth but also for the pumping beam. A proper layer structure which supports standing-wave patterns with a node ne...

Optically pumped microplasma rare gas laser.

The optically pumped rare-gas metastable laser is a chemically inert analogue to three-state optically pumped alkali laser systems. The concept requires efficient generation of electronically excited metastable atoms in a continuous-wave (CW) electric discharge in flowing gas mixtures near atmospheric pressure. We have observed CW optical gain and laser oscillation at 912.3 nm using a linear mi...

Photoluminescence Spectroscopy on Optically Pumped Semiconductor Disk Lasers

Photoluminescence spectra from optically pumped semiconductor disk lasers are presented. A detailled discussion of the results is given as well as a description of the measurement setup and procedure. Spectra which have been measured under different detection angles show specific features which are attributed either to the intrinsic photoluminescence of the gain region or to the distortion whic...

Population inversion in optically pumped asymmetric quantum well terahertz lasers