Temperature coefficient of sideband frequency produced by polarized guided acoustic-wave Brillouin scattering in highly nonlinear fibers

We measured the temperature dependence of the polarized guided acoustic-wave Brillouin scattering (GAWBS) spectrum using a highly nonlinear fiber. The temperature coefficient is 168 kHz/K, which is 1.7 times larger than that of small-core photonic crystal fibers. This result indicates that highly temperature-sensitive GAWBS-based sensing is feasible.

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