Send to

Choose Destination
See comment in PubMed Commons below
Opt Express. 2008 May 26;16(11):7693-702.

25ps all-optical switching in oxygen implanted silicon-on-insulator microring resonator.

Author information

  • 1Institut für Halbleitertechnik, RWTH Aachen University, 52074 Aachen, Germany.


We present all-optical switching in oxygen ion implanted silicon microring resonators. Time-dependent signal modulation is achieved by shifting resonance wavelengths of microrings through the plasma dispersion effect via femtosecond photogeneration of electron-hole pairs and subsequent trapping at implantation induced defect states. We observe a switching time of 25 ps at extinction ratio of 9 dB and free carrier lifetime of 15 ps for an implantation dose of 7 x 10(12) cm(-2). The influence of implantation dose on the switching speed and additional propagation losses of the silicon waveguide--the latter as a result of implantation induced amorphization--is carefully evaluated and in good agreement with theoretical predictions.

[PubMed - indexed for MEDLINE]
PubMed Commons home

PubMed Commons

How to join PubMed Commons

    Supplemental Content

    Full text links

    Icon for Optical Society of America
    Loading ...
    Write to the Help Desk