Brillouin signal amplification in pumped erbium-doped optical fiber

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Author(s)

    • Ding Mingjie
    • Precision and Intelligence Laboratory, Tokyo Institute of Technology
    • Hayashi Neisei
    • Precision and Intelligence Laboratory, Tokyo Institute of Technology
    • Mizuno Yosuke
    • Precision and Intelligence Laboratory, Tokyo Institute of Technology

Abstract

Amplification of Brillouin scattering signal extends the measurement range and improves the signal-to-noise ratio of fiber-optic distributed Brillouin sensors. Here, we investigate the amplification effect of a 980-nm pump laser on Brillouin gain spectrum in an erbium-doped optical fiber. The Brillouin-scattered Stokes power increased exponentially with increasing pump power, exhibiting approximately 87% enhancement at 252 mW compared with the Stokes power obtained without the pump. This suggests that a more significant increase in the Stokes power is feasible with a higher-power 980-nm pump laser.

Journal

  • IEICE Electronics Express

    IEICE Electronics Express 11(18), 20140627-20140627, 2014

    The Institute of Electronics, Information and Communication Engineers

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