Integrated optical switch based on SOI-technology

Timo Aalto, Päivi Heimala, Pekka Katila

    Research output: Contribution to journalArticleScientificpeer-review

    5 Citations (Scopus)

    Abstract

    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
    VolumeT79
    DOIs
    Publication statusPublished - 1999
    MoE publication typeA1 Journal article-refereed

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