Single-chip ring resonator-based 1 x 8 optical beam forming network in CMOS-compatible waveguide technology

L. Zhuang, C.G.H. Roeloffzen, Rene Heideman, A. Borreman, Arjan Meijerink, Wim van Etten

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    Optical ring resonators (ORRs) are good candidates to provide continuously tunable delay in optical beam forming networks (OBFNs) for phased array antenna systems. Delay and splitting/combining elements can be integrated on a single optical chip to form an OBFN. A state-of-the-art ring resonator- based 1 x 8 OBFN chip has been fabricated in complementary metal-oxide-semiconductor-compatible waveguide technology. A binary tree topology is used for the network such that a different number of ORRs is cascaded for delay generation at each output. In this letter, the principle of operation is explained and demonstrated by presenting some measurement results on the 1 x 8 OBFN chip.
    Original languageUndefined
    Article number10.1109/LPT.2007.900313
    Pages (from-to)1130-1132
    Number of pages3
    JournalIEEE photonics technology letters
    Issue number15
    Publication statusPublished - 1 Aug 2007


    • EWI-10731
    • IR-61837
    • METIS-245722

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