Passively mode-locked femtosecond VECSELs with high average output power

Maik Scheller, Alexandre Laurain, Stephan W. Koch, Jerome V. Moloney

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


The broad gain-bandwidth and the high output powers make vertical-external-cavity surface-emitting lasers (VECSELs) promising candidates as femtosecond laser sources. Besides an effective design of the gain structure, the major challenges for high power VECSELs are the thermal management of the chips as well as the homogeneity of the epitaxial growth. In this work, we present results of passively mode-locking of our highly efficient VECSELs and demonstrate femtosecond operation with record output powers and pulse energies. At a repetition rate of 1.7 GHz, we achieved nearly transform-limited pulses with 682 fs duration and an average output power exceeding 5 W.

Original languageEnglish (US)
Title of host publicationVertical External Cavity Surface Emitting Lasers (VECSELs) III
StatePublished - 2013
EventVertical External Cavity Surface Emitting Lasers (VECSELs) III - San Francisco, CA, United States
Duration: Feb 3 2013Feb 5 2013

Publication series

NameProceedings of SPIE - The International Society for Optical Engineering
ISSN (Print)0277-786X


OtherVertical External Cavity Surface Emitting Lasers (VECSELs) III
Country/TerritoryUnited States
CitySan Francisco, CA


  • femtosecond
  • high power
  • mode locked

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics
  • Computer Science Applications
  • Applied Mathematics
  • Electrical and Electronic Engineering


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