Abstract
We have characterized 2.0μm (aluminium-gallium-indium)(arsenide-antimonide) quantum-well diode lasers in pulsed operation (20–60ns). A peak power of 1.25W could be achieved. The near-field distribution on the output facet and the spectral output have been analyzed. Single transverse mode operation can only be maintained at low pulse currents. Above a certain current limit higher order modes occur and fluctuations between these modes have been resolved on a 10ns time scale. The threshold for thermal and optical damage was investigated for ridge waveguide widths of 6, 8, and 16μm. No systematic damage threshold could be determined up to current densities as high as 200kA∕cm2.
Sign-in/Register to access full text options 
Free) 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a call
