Temperature stable oxide-confined 850-nm VCSELs operating at bit rates up to 25 Gbit/s at 150°C

N. Ledentsov, M. Agustin, J. R. Kropp, V. A. Shchukin, V. P. Kalosha, K. L. Chi, Z. Khan, J. W. Shi, N. N. Ledentsov

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

8 Scopus citations


New applications in industrial, automotive and datacom applications require vertical-cavity surface-emitting lasers (VCSELs) operating at very high ambient temperatures at ultrahigh speed. We discuss issues related to high temperature performance of the VCSELs including temperature response and spectral properties. The influence of the gain-to-cavity wavelength detuning on temperature performance and spectral width of the VCSELs is discussed. Performance of the oxide-confined 850 nm VCSELs with increased temperature stability capable of operating at bit rates up to 25 Gbit/s at heat sink temperature of 150°C and 35Gbit/s at 130°C. Furthermore, opposite to previous studies of VCSELs with large gain-to-cavity detuning, which demonstrated strongly increased spectral width and a strong redistribution of the mode intensities upon current increase. VCSELs demonstrated in this work show good reproducibility of a narrow spectrum in a wide range of currents and temperatures. Such performance strongly improves the transmission distance over multi-mode fiber and can reduce mode partition noise during high speed operation.

Original languageEnglish
Title of host publicationVertical-Cavity Surface-Emitting Lasers XXII
EditorsChun Lei, Kent D. Choquette
ISBN (Electronic)9781510615892
StatePublished - 2018
EventVertical-Cavity Surface-Emitting Lasers XXII 2018 - San Francisco, United States
Duration: 31 Jan 20181 Feb 2018

Publication series

NameProceedings of SPIE - The International Society for Optical Engineering
ISSN (Print)0277-786X
ISSN (Electronic)1996-756X


ConferenceVertical-Cavity Surface-Emitting Lasers XXII 2018
Country/TerritoryUnited States
CitySan Francisco


  • data transmission
  • fiber
  • high temperature
  • Vertical cavity surface-emitting laser


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