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Low stress, anomalous dispersive silicon nitride waveguides fabricated by reactive sputtering

Andreas Frigg, Andreas Boes, Guanghui Ren, Duk Yong Choi, Silvio Gees, Arnan Mitchell

    Research output: Chapter in Book/Report/Conference proceedingConference Paperpeer-review

    Abstract

    Silicon nitride (SiN) waveguides are a promising platform for nonlinear photonic devices, as it offers a large bandgap, low two-photon absorption, CMOS-compatible fabrication methods and a significant nonlinearity [1,2]. Prominent applications are optical frequency comb generation [2] and supercontinuum generation [3]. These applications require waveguides with an anomalous group velocity dispersion in order to be efficient, which can be achieved by tailoring the waveguide dimensions [2,3]. Optical-quality SiN films are commonly deposited by LPCVD, however the high processing temperatures (> 800 ° C) can cause a high layer stress and crack formation. In this work we investigate reactive magnetron sputtering (PVD) as a method for low temperature (< 150 °C) deposition of SiN thin-films for optical waveguides.

    Original languageEnglish
    Title of host publication2019 Conference on Lasers and Electro-Optics Europe and European Quantum Electronics Conference, CLEO/Europe-EQEC 2019
    PublisherInstitute of Electrical and Electronics Engineers Inc.
    ISBN (Electronic)9781728104690
    DOIs
    Publication statusPublished - Jun 2019
    Event2019 Conference on Lasers and Electro-Optics Europe and European Quantum Electronics Conference, CLEO/Europe-EQEC 2019 - Munich, Germany
    Duration: 23 Jun 201927 Jun 2019

    Publication series

    Name2019 Conference on Lasers and Electro-Optics Europe and European Quantum Electronics Conference, CLEO/Europe-EQEC 2019

    Conference

    Conference2019 Conference on Lasers and Electro-Optics Europe and European Quantum Electronics Conference, CLEO/Europe-EQEC 2019
    Country/TerritoryGermany
    CityMunich
    Period23/06/1927/06/19

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