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

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

    Research output: Chapter in Book/Report/Conference proceedingConference contribution

    1 Citation (Scopus)

    Abstract

    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.

    Original languageEnglish
    Title of host publication2017 Conference on Lasers and Electro-Optics Pacific Rim, CLEO-PR 2017
    PublisherInstitute of Electrical and Electronics Engineers Inc.
    Pages1-2
    Number of pages2
    Volume2017-January
    ISBN (Electronic)9781509062904
    DOIs
    Publication statusPublished - 2017 Nov 22
    Event2017 Conference on Lasers and Electro-Optics Pacific Rim, CLEO-PR 2017 - Singapore, Singapore
    Duration: 2017 Jul 312017 Aug 4

    Other

    Other2017 Conference on Lasers and Electro-Optics Pacific Rim, CLEO-PR 2017
    CountrySingapore
    CitySingapore
    Period17/7/3117/8/4

    Fingerprint

    Optical fiber communication
    Photodetectors
    multiplication
    avalanches
    Semiconductor quantum dots
    photometers
    Waveguides
    optical fibers
    communication
    quantum dots
    waveguides
    Impact ionization
    Frequency response
    frequency response
    depletion
    ionization

    Keywords

    • Avalanche multiplication
    • Frequency response
    • High density quantum dot
    • Photodetector

    ASJC Scopus subject areas

    • Computer Networks and Communications
    • Electronic, Optical and Magnetic Materials
    • Atomic and Molecular Physics, and Optics

    Cite this

    Umezawa, T., Akahane, K., Matsumoto, A., Yamamoto, N., & Kawanishi, T. (2017). Waveguide avalanche photodetector using quantum-dot superlattice for optical fiber communications. In 2017 Conference on Lasers and Electro-Optics Pacific Rim, CLEO-PR 2017 (Vol. 2017-January, pp. 1-2). Institute of Electrical and Electronics Engineers Inc.. https://doi.org/10.1109/CLEOPR.2017.8118602

    Waveguide avalanche photodetector using quantum-dot superlattice for optical fiber communications. / Umezawa, Toshimasa; Akahane, Kouichi; Matsumoto, Atsushi; Yamamoto, Naokatsu; Kawanishi, Tetsuya.

    2017 Conference on Lasers and Electro-Optics Pacific Rim, CLEO-PR 2017. Vol. 2017-January Institute of Electrical and Electronics Engineers Inc., 2017. p. 1-2.

    Research output: Chapter in Book/Report/Conference proceedingConference contribution

    Umezawa, T, Akahane, K, Matsumoto, A, Yamamoto, N & Kawanishi, T 2017, Waveguide avalanche photodetector using quantum-dot superlattice for optical fiber communications. in 2017 Conference on Lasers and Electro-Optics Pacific Rim, CLEO-PR 2017. vol. 2017-January, Institute of Electrical and Electronics Engineers Inc., pp. 1-2, 2017 Conference on Lasers and Electro-Optics Pacific Rim, CLEO-PR 2017, Singapore, Singapore, 17/7/31. https://doi.org/10.1109/CLEOPR.2017.8118602
    Umezawa T, Akahane K, Matsumoto A, Yamamoto N, Kawanishi T. Waveguide avalanche photodetector using quantum-dot superlattice for optical fiber communications. In 2017 Conference on Lasers and Electro-Optics Pacific Rim, CLEO-PR 2017. Vol. 2017-January. Institute of Electrical and Electronics Engineers Inc. 2017. p. 1-2 https://doi.org/10.1109/CLEOPR.2017.8118602
    Umezawa, Toshimasa ; Akahane, Kouichi ; Matsumoto, Atsushi ; Yamamoto, Naokatsu ; Kawanishi, Tetsuya. / Waveguide avalanche photodetector using quantum-dot superlattice for optical fiber communications. 2017 Conference on Lasers and Electro-Optics Pacific Rim, CLEO-PR 2017. Vol. 2017-January Institute of Electrical and Electronics Engineers Inc., 2017. pp. 1-2
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