Design and simulation of next-generation high-power, high-brightness laser diodes

Jun Lim, Slawomir Sujecki, Lei Lang, Zhichao Zhang, David Paboeuf, Gilles Pauliat, Gaëlle Lucas-Leclin, Patrick Georges, Roderick C. I. MacKenzie, Philip Bream, Stephen Bull, Karl-Heinz Hasler, Bernd Sumpf, Hans Wenzel, Götz Erbert, Birgitte Thestrup, Paul Michael Petersen, Nicolas Michel, Michel Krakowski, Eric Larkins

Research output: Contribution to journalArticle

47 Citations (Scopus)

Abstract

High-brightness laser diode technology is progressing rapidly in response to competitive and evolving markets. The large volume resonators required for high-power, high-brightness operation makes their beam parameters and brightness sensitive to thermal- and carrier-induced lensing and also to multimode operation. Power and beam quality are no longer the only concerns for the design of high-brightness lasers. The increased demand for these technologies is accompanied by new performance requirements, including a wider range of wavelengths, direct electrical modulation, spectral purity and stability, and phase-locking techniques for coherent beam combining. This paper explores some of the next-generation technologies being pursued, while illustrating the growing importance of simulation and design tools. The paper begins by investigating the brightness limitations of broad-area laser diodes, including the use of asymmetric feedback to improve the modal discrimination. Next, tapered lasers are considered, with an emphasis on emerging device technologies for applications requiring electrical modulation and high spectral brightness.
Original languageEnglish
Pages (from-to)993-1008
Number of pages16
JournalIEEE Journal of Selected Topics in Quantum Electronics
Volume15
Issue number3
DOIs
Publication statusPublished - Jun 2009

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Keywords

  • laser beams
  • high powered lasers
  • beam parameter
  • coherent beam
  • spectral purity

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