Towards filament-free semiconductor lasers

John G. McInerney, Peter O'Brien, Peter Skovgaard, Mark Mullane, John Houlihan, Eamonn O'Neill, Jerome V Moloney, Robert A Indik

Research output: Chapter in Book/Report/Conference proceedingConference contribution

3 Scopus citations


We outline physical models and simulations for suppression of self-focusing and filamentation in large aperture semiconductor lasers. The principal technical objective is to generate multi-watt CW or quasi-CW outputs with nearly diffraction limited beams, suitable for long distance free space transmission, focusing to small spots or coupling to single-mode optical fibers. The principal strategies are (a) optimization of facet damage thresholds, (b) reduction of the linewidth enhancement factor which acts as the principal nonlinear optical coefficient, and (c) design of laterally profiled propagation structures in lasers and amplifiers which suppress lateral reflections.

Original languageEnglish (US)
Title of host publicationProceedings of SPIE - The International Society for Optical Engineering
PublisherSociety of Photo-Optical Instrumentation Engineers
Publication statusPublished - 2000
Externally publishedYes
EventPhysics and Simulation of Optoelectronic Devices VIII - San Jose, CA, USA
Duration: Jan 24 2000Jan 28 2000


OtherPhysics and Simulation of Optoelectronic Devices VIII
CitySan Jose, CA, USA


ASJC Scopus subject areas

  • Electrical and Electronic Engineering
  • Condensed Matter Physics

Cite this

McInerney, J. G., O'Brien, P., Skovgaard, P., Mullane, M., Houlihan, J., O'Neill, E., ... Indik, R. A. (2000). Towards filament-free semiconductor lasers. In Proceedings of SPIE - The International Society for Optical Engineering (Vol. 3944). Society of Photo-Optical Instrumentation Engineers.