Waveguide avalanche photodetector using quantum-dot superlattice for optical fiber communications

Toshimasa Umezawa, Kouichi Akahane, Atsushi Matsumoto, Naokatsu Yamamoto, Tetsuya Kawanishi

    研究成果: Conference contribution

    抜粋

    We report a 1.5-μm high-responsivity waveguide quantum dot photodetector with an avalanche multiplication effect and high frequency response. With two different QD layer conditions, the responsivity and avalanche multiplication were compared and discussed. The high responsivity of 0.58 A/W and avalanche multiplication factor of around 10 could be obtained. Then, it was inferred that the impact ionization process in the quantum dot superlattice would be created in the depletion layer region, not in the InGaAlAs SL region.

    元の言語English
    ホスト出版物のタイトルConference on Lasers and Electro-Optics/Pacific Rim, CLEOPR 2017
    出版者OSA - The Optical Society
    Part F122-CLEOPR 2017
    ISBN(電子版)9781557528209
    出版物ステータスPublished - 2017 1 1
    イベントConference on Lasers and Electro-Optics/Pacific Rim, CLEOPR 2017 - Singapore, Singapore
    継続期間: 2017 7 312017 8 4

    Other

    OtherConference on Lasers and Electro-Optics/Pacific Rim, CLEOPR 2017
    Singapore
    Singapore
    期間17/7/3117/8/4

    ASJC Scopus subject areas

    • Electronic, Optical and Magnetic Materials
    • Mechanics of Materials

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  • これを引用

    Umezawa, T., Akahane, K., Matsumoto, A., Yamamoto, N., & Kawanishi, T. (2017). Waveguide avalanche photodetector using quantum-dot superlattice for optical fiber communications. : Conference on Lasers and Electro-Optics/Pacific Rim, CLEOPR 2017 (巻 Part F122-CLEOPR 2017). [s0963] OSA - The Optical Society.