Light propagation studies on laser modified waveguides using scanning near-field optical microscopy

X. Borrise, Abadal Gabriel Berini, D. Jimenez, F. Perez-Murano, N. Barniol, Zachary James Davis, Anja Boisen

    Research output: Contribution to journalJournal articleResearchpeer-review

    Abstract

    By means of direct laser writing on Al, a new method to locally modify optical waveguides is proposed. This technique has been applied to silicon nitride waveguides, allowing modifications of the optical propagation along the guide. To study the formed structures, a scanning near-held optical microscope (SNOM) has been used. The laser modifications locally changes the optical properties of the waveguide. The change in the effective refractive index is attributed to a TE to TM mode conversion, Thus, the laser modification might be a new way to fabricate optical mode converters.
    Original languageEnglish
    JournalIEEE Photonics Technology Letters
    Volume13
    Issue number8
    Pages (from-to)809-811
    ISSN1041-1135
    Publication statusPublished - 2001

    Cite this

    Borrise, X., Berini, A. G., Jimenez, D., Perez-Murano, F., Barniol, N., Davis, Z. J., & Boisen, A. (2001). Light propagation studies on laser modified waveguides using scanning near-field optical microscopy. IEEE Photonics Technology Letters, 13(8), 809-811.