High-speed 1550 nm VCSEL data transmission link employing 25 Gbaud 4-PAM modulation and Hard Decision Forward Error Correction

Roberto Rodes Lopez, M. Mueller, Bomin Li, Jose Manuel Estaran Tolosa, Jesper Bevensee Jensen, T. Grundl, M. Ortsiefer, C. Neumeyr, J. Rosskopf, Knud J. Larsen, M. Amann, Idelfonso Tafur Monroy

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    Abstract

    Current short-range optical interconnects capacity is moving from 100 Gb/s to 400 Gb/s and beyond. Directly modulation of several laser sources is used to minimize bandwidth limitations of current optical and electrical components. Either this total capacity is provided by wavelengthdivision- multiplexing or parallel optics, it is important to investigate on the ultimate transmission capabilities of each laser source to facilitate current capacity standards and allow for future demands. High-speed 4-level pulse amplitude modulation at 25 Gbaud of a 1.5 #x00EC;m VCSEL is presented in this paper. The 20 GHz 3 dBbandwidth laser is, at the time of submission, the largest bandwidth of a 1.5 #x00EC;m VCSEL ever reported. Forward error correction (FEC) is implemented to achieve transmission over 100 m virtually error-free after FEC decoding. Linerate of 100 Gb/s is achieved by emulation polarization multiplexing using 50 Gb/s signal obtained from a single VCSEL.
    Original languageEnglish
    JournalJournal of Lightwave Technology
    Volume31
    Issue number4
    Pages (from-to)689-695
    ISSN0733-8724
    DOIs
    Publication statusPublished - 2013

    Keywords

    • Fiber optics communication
    • Optical interconnects
    • Vertical cavity surface emitting lasers
    • Forward error correction
    • 4-PAM

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