Integrated photonic Ku-band beamformer chip with continuous amplitude and delay control

Maurizio Burla, David Marpaung, Leimeng Zhuang, Arne Leinse, Marcel Hoekman, René Heideman, Chris Roeloffzen

    Research output: Contribution to journalArticleAcademicpeer-review

    29 Citations (Scopus)
    2 Downloads (Pure)


    We present the first demonstration of a broadband and continuously tunable integrated optical beamforming network (IOBFN) capable of providing continuously tunable true-time-delay up to 236 ps over the entire DVB-S band (10.7–12.75 GHz), realized with a CMOS compatible process. The tunable delays are based on reconfigurable optical ring resonators in conjunction with a single optical sideband filter integrated on the same optical chip. The delays and filter responses are software programmable. Four tunable delay lines are integrated on a single chip and configured to feed a 16-element linear antenna array. The broadband beam steering capability of the proposed IOBFN is demonstrated by the squint-free antenna pattern generated from the measured RF amplitude and phase responses of the optical delay line.
    Original languageEnglish
    Pages (from-to)1145-1148
    Number of pages4
    JournalIEEE photonics technology letters
    Issue number12
    Publication statusPublished - 2013


    • Optical beamforming
    • Optical ring resonators
    • Phased array antenna
    • Photonic signalprocessing
    • Microwave photonics
    • True time delay


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