40Gbit/s modulation of 1550nm VCSEL

W. Hofmann, M. Müller, P. Wolf, A. Mutig, T. Gründl, G. Böhm, D. Bimberg, M. C. Amann

Research output: Contribution to journalArticlepeer-review

71 Scopus citations


The modulation characteristics of vertical-cavity surface-emitting lasers with a buried tunnel junction emitting in the important wavelength regime around 1.55m are presented. For the first time it was possible to demonstrate bit rates up to 40Gbit/s also in this waveband. The 3dB bandwidth measured under continuous-wave driving conditions was higher than 19GHz. The present devices were found to be somehow sensitive to the bit-pattern length, especially at high temperatures or data rates resulting in some error-flooring. Error-free performance could be demonstrated up to 35Gbit/s at room temperature and up to 25Gbit/s at 55°C.

Original languageEnglish
Pages (from-to)270-271
Number of pages2
JournalElectronics Letters
Issue number4
StatePublished - 17 Feb 2011


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