Phase error compensation for multilayered AWG in LCOS-based WSS

Keisuke Sorimoto, Kenji Kintaka, Hitoshi Kawashima, Masahiko Mori, Toshifumi Hasama, Hiroshi Ishikawa, Hiroyuki Tsuda, Hisato Uetsuka

    Research output: Contribution to journalArticle

    2 Citations (Scopus)

    Abstract

    We propose a novel method to compensate for the phase errors of a multilayered arrayed waveguide grating (AWG) used in a liquid-crystal-on-silicon (LCOS)-based wavelength selective switch (WSS). In this scheme, an additional LCOS is employed to externally compensate for the phase errors of the AWG in a layer-by-layer manner for both planes of polarization. This compensation scheme enables us to improve the yield of the WSS: specifically, we demonstrate that the additional LCOS drastically reduces the loss and polarizationdependent loss (PDL) of the WSS.

    Original languageEnglish
    Pages (from-to)2054-2060
    Number of pages7
    JournalIEICE Electronics Express
    Volume8
    Issue number24
    DOIs
    Publication statusPublished - 2011 Dec 25

    Keywords

    • Arrayed waveguide grating
    • Liquid crystal on silicon
    • Multilayered waveguide
    • Phase error compensation
    • Wavelength selective switch

    ASJC Scopus subject areas

    • Electronic, Optical and Magnetic Materials
    • Condensed Matter Physics
    • Electrical and Electronic Engineering

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  • Cite this

    Sorimoto, K., Kintaka, K., Kawashima, H., Mori, M., Hasama, T., Ishikawa, H., Tsuda, H., & Uetsuka, H. (2011). Phase error compensation for multilayered AWG in LCOS-based WSS. IEICE Electronics Express, 8(24), 2054-2060. https://doi.org/10.1587/elex.8.2054