Evolution of Multi-Mode operation in Verticalexternal-Cavity Surface-Emitting lasers

Matthias Wichmann, Mohammad Khaled Shakfa, Fan Zhang, Bernd Heinen, Maik Scheller, Arash Rahimi-Iman, Wolfgang Stolz, Jerome V. Moloney, Stephan W. Koch, Martin Koch

Research output: Contribution to journalArticlepeer-review

26 Scopus citations


The longitudinal multi-mode emission in a vertical-externalcavity surface-emitting laser is investigated using both single shot streak camera measurements and interferometric measurement techniques. For this, the laser is operated in the single-And two-color emission regime using both an etalon and a free-running configuration without etalon, respectively. The laser emission is analyzed with respect to pump power and output coupling losses for a long and for a short resonator. We observe a steep increase of emission bandwidth close to the laser threshold and monitor the transition between longitudinal single-And multi-mode operation. Additionally, the results indicate that a stable two-color operation is related to a sufficiently high number of oscillating longitudinal modes within each color.

Original languageEnglish (US)
Pages (from-to)31940-31950
Number of pages11
JournalOptics Express
Issue number26
StatePublished - Dec 30 2013

ASJC Scopus subject areas

  • Atomic and Molecular Physics, and Optics


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