Fabrication of optical waveguides by imprinting: Usage of positive tone resist as a mould for UV-curable polymer

Jussi Hiltunen (Corresponding Author), Marianne Hiltunen, Pentti Karioja, Jarkko Puustinen, Jyrki Lappalainen

    Research output: Contribution to journalArticleScientificpeer-review

    25 Citations (Scopus)

    Abstract

    Optical ridge type waveguides based on UV-curable polymer were fabricated by imprinting method. Positive tone resist patterned on a silicon wafer was used as a mould. The characterization of waveguides was carried out by coupling TE-polarized light from a tapered fiber into a waveguide with 30 mm length and mapping the intensity distribution with another tapered fiber at the output facet of a waveguide. Proper single- or multimode operation was observed depending on the waveguide width being either 2 µm or 6 µm. Experimental observations on the mode profiles were also supported by the simulation results. Average power transmissions of 32% at 1530 nm wavelength and 45% at 1310 nm wavelength were characterized. The results suggest that the simple mould fabrication process might be a useful technique for device prototyping and that the performance of replicated waveguides can meet the requirements for certain applications.
    Original languageEnglish
    Pages (from-to)22813-22822
    Number of pages10
    JournalOptics Express
    Volume17
    Issue number25
    DOIs
    Publication statusPublished - 2009
    MoE publication typeA1 Journal article-refereed

    Keywords

    • Polymer waveguides
    • waveguides
    • microstructure fabrication
    • materials processing

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