Passive fiber optic bus using bidirectional integrated optics bus access couplers

Pentti Karioja, Simo Tammela, Ari Tervonen, Seppo Honkanen

    Research output: Contribution to journalArticleScientificpeer-review

    3 Citations (Scopus)


    The feasibility of a passive fiber optic bus that uses bidirectional integrated optics bus access couplers is studied. The number of bus nodes can be increased when an optimized asymmetric bus access coupler is used instead of a symmetric one. A modified Ag-Na ion exchange process provides the possibility of manufacturing integrated optics asymmetric couplers for the bus. The process is suitable for the processing of integrated optics components that combine deep multimode waveguides with different core sizes on a single substrate. An access coupler is designed, modeled, and processed. The coupler is optimized for seven nodes; the asymmetry of the coupler is 5 dB.
    Original languageEnglish
    Pages (from-to)2551-2559
    Number of pages9
    JournalOptical Engineering
    Issue number9
    Publication statusPublished - 1995
    MoE publication typeA1 Journal article-refereed


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