Brillouin optical time-domain analysis assisted by second-order Raman amplification

Sonia Martín-López, Mercedes Alcon-Camas, Felix Rodriguez, Pedro Corredera, Juan Diego Ania-Castañon, Luc Thévenaz, Miguel González-Herráez

    Research output: Contribution to journalArticlepeer-review


    We propose and experimentally demonstrate a new method to extend the range of Brillouin optical time domain analysis (BOTDA) systems. It exploits the virtual transparency created by second-order Raman pumping in optical fibers. The idea is theoretically analyzed and experimentally demonstrated in a 50 km fiber. By working close to transparency, we also show that the measurement length of the BOTDA can be increased up to 100 km with 2 meter resolution. We envisage extensions of this technique to measurement lengths well beyond this value, as long as the issue of relative intensity noise (RIN) of the primary Raman pump can be avoided.

    Original languageEnglish
    Pages (from-to)18769-18778
    Number of pages10
    JournalOptics Express
    Issue number18
    Early online date18 Aug 2010
    Publication statusPublished - 30 Aug 2010


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