Self-Aligned Optofiber/Waveguide Connector with Integrated V-grooves and Diffractive Optical Elements

F. Nikolajeff*, O. Larsson, S. Hård, M. Kindlundh

*Corresponding author for this work

    Research output: Contribution to journalArticlepeer-review


    We demonstrate a novel type of self-aligned optofiber/waveguide connector with integrated V-grooves and diffractive optical elements. The self-alignment is achieved by connecting micro-structures which have originally been formed in silicon and later replicated in concave and convex forms. V-grooves hold the optical fibers and the light is coupled out through diffractive optical elements (DOEs). A manufacturing process has been developed which allows both deep micro-structures (V-grooves and alignment structures) and shallow surface reliefs (diffractive elements) to be realized on the same substrate. The self-alignment using microstructures allows a positioning accuracy of about ± 5μm. Two different fan-out DOEs have been optically characterized.

    Original languageEnglish
    Pages (from-to)16-19
    Number of pages4
    JournalProceedings of SPIE - The International Society for Optical Engineering
    Publication statusPublished - 2003


    • Alignment
    • Connector
    • Coupler
    • Diffractive optics
    • Optical fiber
    • Waveguide


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