VCSEL Based Coherent PONs

Jesper Bevensee Jensen, Roberto Rodes, Antonio Caballero Jambrina, Ning Cheng, Darko Zibar, Idelfonso Tafur Monroy

    Research output: Contribution to journalJournal articleResearchpeer-review


    We present a review of research performed in the area of coherent access technologies employing vertical cavity surface emitting lasers (VCSELs). Experimental demonstrations of optical transmission over a passive fiber link with coherent detection using VCSEL local oscillators and directly modulated VCSEL transmitters at bit rates up to 10 Gbps in the C-band as well as in the O-band are presented. The broad linewidth and frequency chirp associated with directly modulated VCSELs are utilized in an envelope detection receiver scheme which is demonstrated digitally (off-line) as well as analog (real-time). Additionally, it is shown that in the optical front-end of a coherent receiver for access networks, the 90 ° hybrid can be replaced by a 3-dB coupler. The achieved results show that VCSELs are attractive light source candidates for transmitter as well as local oscillator for coherent detection PONs.

    Original languageEnglish
    JournalJournal of Lightwave Technology
    Issue number8
    Pages (from-to)1423-1433
    Publication statusPublished - 2014


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