Reliability of high power diode laser systems based on single emitters

Paul Leisher, Mitch Reynolds, Aaron Brown, Keith Kennedy, Ling Bao, Jun Wang, Mike Grimshaw, Mark DeVito, Scott Karlsen, Jay Small, Chris Ebert, Rob Martinsen (+1 others)
2011 High-Power Diode Laser Technology and Applications IX  
Diode laser modules based on arrays of single emitters offer a number of advantages over bar-based solutions including enhanced reliability, higher brightness, and lower cost per bright watt. This approach has enabled a rapid proliferation of commercially available high-brightness fiber-coupled diode laser modules. Incorporating ever-greater numbers of emitters within a single module offers a direct path for power scaling while simultaneously maintaining high brightness and minimizing overall
more » ... inimizing overall cost. While reports of long lifetimes for single emitter diode laser technology are widespread, the complex relationship between the standalone chip reliability and package-induced failure modes, as well as the impact of built-in redundancy offered by multiple emitters, are not often discussed. In this work, we present our approach to the modeling of fiber-coupled laser systems based on single-emitter laser diodes.
doi:10.1117/12.875858 fatcat:agnwbqs5s5achg6q6g2h2rlnge