Polysilane/polysilazane composite: Novel material for optical waveguides and its application to mode-conversion filters

Hiroshi Mataki, Shigeru Yamaki, Tsuyoshi Fujiki, Shin Ichi Kawasaki, Nobuyasu Tanabe, Hideaki Okayama, Hirochika Nakajima

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    3 Citations (Scopus)


    Polysilane/polysilazane (PS/PSz) composite is proposed as a novel material for optical waveguides. A refractive index change, as large as about 4.5%, can be induced and automatically built in only by UV exposure without etching and/ or development due to a photochemical reaction, generally known as "photobleaching". To verify the practical performance of the PS/PSz composite for photonic devices with refractive-index-modulated structures, we fabricated optical waveguide mode-conversion filters using polymethylphenylsilane (PMPS)/perhydropolysilazane (PHPSz) composite, and successfully demonstrated its operation in both visible (633 nm) and infrared (1310nm) wavelength ranges. The result shows that the PS/ PSz composite is a promising candidate not only for optical waveguide devices such as those used in CWDM applications, but also for optical interconnections.

    Original languageEnglish
    Pages (from-to)5857-5861
    Number of pages5
    JournalJapanese Journal of Applied Physics, Part 1: Regular Papers and Short Notes and Review Papers
    Issue number8 B
    Publication statusPublished - 2004 Aug



    • Optical waveguide
    • Photobleaching
    • Polysilane
    • Polysilazane
    • Wavelength filter

    ASJC Scopus subject areas

    • Physics and Astronomy (miscellaneous)

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