Passband-flattened periodic multi/demultiplexer using a Mach-Zehnder interferometer with ring resonator fabricated in SiON waveguide technology

C.G.H. Roeloffzen, R.M. de Ridder, G. Sengo, Kerstin Worhoff, A. Driessen

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

    2 Citations (Scopus)

    Abstract

    In this paper, we demonstrate a thermo-optically tunable periodic wavelength filter (interleaver) with a 50 GHz free spectral range (FSR). It has an almost rectangular wavelength response and consists of an asymmetric Mach-Zehnder Interferometer (MZI) consisting of two tunable 3dB couplers interconnected by two waveguide channels of unequal length, with a ring resonator coupled to one of the branches of the MZI. The filter is fabricated in silicon oxynitride (SiON) waveguide technology. The bar and cross transmission spectra and chromatic dispersion of the filter have been measured and passband flattening and stopband broadening was observed in good agreement with the simulation. The isolation was 15 dB and 12 dB for TM and TE polarized light respectively, which was lower than the designed 29 dB. The main cause of lower isolation is an inaccuracy of the realization of the power coupling coefficient to the ring (59% instead of the designed 82%). The measured dispersion of the filter varies from 0 ps/nm at the center to 1660 ps/nm at the edge of the passband.
    Original languageEnglish
    Title of host publicationLaser Diodes, Optoelectronic Devices, and Heterogenous Integration
    Subtitle of host publication28 October - 1 November 2002, Bruges, Belgium
    EditorsJohn Gerard McInerney, Ephraim Suhir, Alfred Driessen, Roel G. Baets
    Place of PublicationBellingham, WA
    PublisherSPIE
    Pages84-91
    Number of pages8
    ISBN (Print)0-8194-4742-0
    DOIs
    Publication statusPublished - 29 Oct 2002
    EventSPIE Photonics Fabrication Europe 2002 - Bruges, Belgium
    Duration: 28 Oct 20021 Nov 2002

    Publication series

    NameProceedings of SPIE
    PublisherSPIE
    Volume4947
    ISSN (Print)0277-786X

    Conference

    ConferenceSPIE Photonics Fabrication Europe 2002
    CountryBelgium
    CityBruges
    Period28/10/021/11/02

    Keywords

    • METIS-212435

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  • Cite this

    Roeloffzen, C. G. H., de Ridder, R. M., Sengo, G., Worhoff, K., & Driessen, A. (2002). Passband-flattened periodic multi/demultiplexer using a Mach-Zehnder interferometer with ring resonator fabricated in SiON waveguide technology. In J. G. McInerney, E. Suhir, A. Driessen, & R. G. Baets (Eds.), Laser Diodes, Optoelectronic Devices, and Heterogenous Integration: 28 October - 1 November 2002, Bruges, Belgium (pp. 84-91). (Proceedings of SPIE; Vol. 4947). Bellingham, WA: SPIE. https://doi.org/10.1117/12.468252