Integrated optical switch based on SOI-technology

Timo Aalto, Päivi Heimala, Pekka Katila

    Research output: Contribution to journalArticle in a proceedings journalScientificpeer-review

    7 Citations (Scopus)


    An integrated optical thermo-optic switch has been designed using silicon-on-insulator (SOI) waveguide technology. The switch consists of two cascaded waveguide couplers with thermo-optic heaters on the waveguide arms connecting the two couplers. A detailed modelling of the optical and thermal operation of the switch has been made. A single-mode ridge waveguide structure with large cross-section was designed. The fibre-waveguide mode coupling loss was calculated to be 0.6 dB. According to the thermal modelling, a 3 K temperature change is enough to switch the output state of the device. The switching time is expected to be 0.2 ms and the electrical power consumption 120 mW.
    Original languageEnglish
    Pages (from-to)123-126
    JournalPhysica Scripta: Topical Issues
    Publication statusPublished - 1999
    MoE publication typeA4 Article in a conference publication
    Event18th Nordic Semiconductor Meeting, NSM18 - Linköping, Sweden
    Duration: 8 Jun 199810 Jun 1998


    Dive into the research topics of 'Integrated optical switch based on SOI-technology'. Together they form a unique fingerprint.

    Cite this