25-Gbaud 4-WDM Free-Space Optical Communication using High-Speed 2D Photodetector Array

Toshimasa Umezawa, Takahide Sakamoto, Atsushi Kanno, Atsushi Matsumoto, Kouichi Akahane, Naokatsu Yamamoto, Tetsuya Kawanishi

    Research output: Contribution to journalArticle

    Abstract

    We present a newly developed two-dimensional photodetector array (2D-PDA) device and its application for short-range free-space optical (FSO) communication using a wavelength-division multiplexed beam. The 2D-PDA enables direct optical coupling to the FSO beam, and excludes the optical alignment process for the 10 μm single-mode fiber and the beam-tracking function. In the wavelength-division multiplexing (WDM) FSO communication demonstration, a four-wavelength 25-Gbaud parallel-beam filtered by a 4-WDM filter through free space was successfully received by a 4-pixel in the 2D-PDA. This paper discusses the design and fabrication in the 2D-PDA device, as well as the FSO communication demonstration using four combined WDM filters.

    Original languageEnglish
    JournalJournal of Lightwave Technology
    DOIs
    Publication statusAccepted/In press - 2018 Jan 1

    Fingerprint

    free-space optical communication
    wavelength division multiplexing
    photometers
    high speed
    filters
    optical coupling
    wavelengths
    division
    pixels
    alignment
    fabrication
    fibers

    Keywords

    • Data centers
    • free space optical communication
    • high speed
    • Optical beams
    • Optical fiber communication
    • Optical fiber filters
    • Optical fibers
    • two-dimensional photodetector array
    • Wavelength division multiplexing
    • wavelength division multiplexing

    ASJC Scopus subject areas

    • Atomic and Molecular Physics, and Optics

    Cite this

    25-Gbaud 4-WDM Free-Space Optical Communication using High-Speed 2D Photodetector Array. / Umezawa, Toshimasa; Sakamoto, Takahide; Kanno, Atsushi; Matsumoto, Atsushi; Akahane, Kouichi; Yamamoto, Naokatsu; Kawanishi, Tetsuya.

    In: Journal of Lightwave Technology, 01.01.2018.

    Research output: Contribution to journalArticle

    Umezawa, Toshimasa ; Sakamoto, Takahide ; Kanno, Atsushi ; Matsumoto, Atsushi ; Akahane, Kouichi ; Yamamoto, Naokatsu ; Kawanishi, Tetsuya. / 25-Gbaud 4-WDM Free-Space Optical Communication using High-Speed 2D Photodetector Array. In: Journal of Lightwave Technology. 2018.
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    AU - Matsumoto, Atsushi

    AU - Akahane, Kouichi

    AU - Yamamoto, Naokatsu

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