Embedded nanograting-based waveplates for polarization control in integrated photonic circuits

Kim Lammers*, Max Ehrhardt, Teodor Malendevych, Xiaoyu Xu, Christian Vetter, Alessandro Alberucci, Alexander Szameit, Stefan Nolte

*Corresponding author for this work

    Research output: Contribution to journalJournal articleResearchpeer-review

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    Abstract

    Femtosecond laser direct writing (FLDW) enables precise three-dimensional structuring of transparent host materials such as fused silica. With this technique, reliable integrated optical circuits can be written, which are also a possible candidate for future quantum technologies. We demonstrate the manufacturing of integrated waveplates with arbitrary orientations and various phase delays by combining embedded birefringent nanograting structures and FLDW waveguides in fused silica glass. These waveplates can be used both for classical applications and for quantum gates.

    Original languageEnglish
    JournalOptical Materials Express
    Volume9
    Issue number6
    Pages (from-to)2560-2572
    ISSN2159-3930
    DOIs
    Publication statusPublished - 2019

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