Designing new classes of high power, high brightness VECSELs

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

2 Citations (Scopus)

Abstract

Optically-pumped vertical external cavity semiconductor lasers offer the exciting possibility of designing kW-class solid state lasers that provide significant advantages over their doped YAG, thin-disk YAG and fiber counterparts. The basic VECSEL/OPSL (optically-pumped semiconductor laser) structure consists of a very thin (approximately 6 micron thick) active mirror consisting of a DBR high-reflectivity stack followed by a multiple quantum well resonant periodic (RPG) structure. An external mirror (reflectivity typically between 94%-98%) provides conventional optical feedback to the active semiconductor mirror chip. The "cold" cavity needs to be designed to take into account the semiconductor sub-cavity resonance shift with temperature and, importantly, the more rapid shift of the semiconductor material gain peak with temperature. Thermal management proves critical in optimizing the device for serious power scaling. We will describe a closed-loop procedure that begins with a design of the semiconductor active epi structure. This feeds into the sub-cavity optimization, optical and thermal transport within the active structure and thermal transport though the various heat sinking elements. Novel schemes for power scaling beyond current record performances will be discussed.

Original languageEnglish (US)
Title of host publicationProceedings of SPIE - The International Society for Optical Engineering
EditorsJ.C. Carrano, A. Zukauskas, A.W. Vere, J.G. Grote, F. Kajzar
Volume5990
DOIs
StatePublished - 2005
EventOptically Based Biological and Chemical Sensing, and Optically Based Materials for Defence - Bruges, Belgium
Duration: Sep 28 2005Sep 28 2005

Other

OtherOptically Based Biological and Chemical Sensing, and Optically Based Materials for Defence
CountryBelgium
CityBruges
Period9/28/059/28/05

Fingerprint

Luminance
brightness
Semiconductor materials
cavities
Mirrors
mirrors
yttrium-aluminum garnet
Semiconductor lasers
semiconductor lasers
reflectance
scaling
Optical feedback
sinking
Solid state lasers
shift
Periodic structures
solid state lasers
Temperature control
Semiconductor quantum wells
chips

Keywords

  • Device simulation
  • Optical feedback
  • Optoelectronics
  • Semiconductor lasers
  • VECSELs

ASJC Scopus subject areas

  • Electrical and Electronic Engineering
  • Condensed Matter Physics

Cite this

Moloney, J. V., Zakharian, A. R., Hader, J., & Koch, S. W. (2005). Designing new classes of high power, high brightness VECSELs. In J. C. Carrano, A. Zukauskas, A. W. Vere, J. G. Grote, & F. Kajzar (Eds.), Proceedings of SPIE - The International Society for Optical Engineering (Vol. 5990). [599003] https://doi.org/10.1117/12.630864

Designing new classes of high power, high brightness VECSELs. / Moloney, Jerome V; Zakharian, A. R.; Hader, Jorg; Koch, Stephan W.

Proceedings of SPIE - The International Society for Optical Engineering. ed. / J.C. Carrano; A. Zukauskas; A.W. Vere; J.G. Grote; F. Kajzar. Vol. 5990 2005. 599003.

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

Moloney, JV, Zakharian, AR, Hader, J & Koch, SW 2005, Designing new classes of high power, high brightness VECSELs. in JC Carrano, A Zukauskas, AW Vere, JG Grote & F Kajzar (eds), Proceedings of SPIE - The International Society for Optical Engineering. vol. 5990, 599003, Optically Based Biological and Chemical Sensing, and Optically Based Materials for Defence, Bruges, Belgium, 9/28/05. https://doi.org/10.1117/12.630864
Moloney JV, Zakharian AR, Hader J, Koch SW. Designing new classes of high power, high brightness VECSELs. In Carrano JC, Zukauskas A, Vere AW, Grote JG, Kajzar F, editors, Proceedings of SPIE - The International Society for Optical Engineering. Vol. 5990. 2005. 599003 https://doi.org/10.1117/12.630864
Moloney, Jerome V ; Zakharian, A. R. ; Hader, Jorg ; Koch, Stephan W. / Designing new classes of high power, high brightness VECSELs. Proceedings of SPIE - The International Society for Optical Engineering. editor / J.C. Carrano ; A. Zukauskas ; A.W. Vere ; J.G. Grote ; F. Kajzar. Vol. 5990 2005.
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