Polarization investigation of a tunable high-speed short-wavelength bulk-micromachined MEMS-VCSEL

H. A. Davani, B. Kögel, P. Debernardi, C. Grasse, C. Gierl, K. Zogal, Å Haglund, J. Gustavsson, P. Westbergh, T. Gründl, P. Komissinskiy, T. Bitsch, L. Alff, F. Küppers, A. Larsson, M. C. Amann, P. Meissner

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

5 Citations (Scopus)


We report the investigation of the state of polarization (SOP) of a tunable vertical-cavity surface-emitting laser (VCSEL) operating near 850 nm with a mode-hop free single-mode tuning range of about 12 nm and an amplitude modulation bandwidth of about 5 GHz. In addition, the effect of a sub-wavelength grating on the device and its influence on the polarization stability and polarization switching has been investigated. The VCSEL with an integrated sub-wavelength grating shows a stable SOP with a polarization mode suppression ratio (PMSR) more than 35 dB during the tuning.

Original languageEnglish
Title of host publicationVertical-Cavity Surface-Emitting Lasers XVI
Publication statusPublished - 2012
Externally publishedYes
EventVertical-Cavity Surface-Emitting Lasers XVI - San Francisco, CA, United States
Duration: 25 Jan 201226 Jan 2012

Publication series

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


ConferenceVertical-Cavity Surface-Emitting Lasers XVI
Country/TerritoryUnited States
CitySan Francisco, CA


  • Polarization
  • sub-wavelength grating
  • Tunable laser
  • Tunable VCSEL


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