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Experimental and numerical investigation of the SBS-threshold increase in an optical fiber by applying strain distributions

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3 Author(s)
Boggio, J.C. ; Opt. & Photonics Res. Center, Campinas, Brazil ; Marconi, J.D. ; Fragnito, H.L.

We study, experimentally and numerically, the increase of the stimulated Brillouin scattering (SBS) threshold in dispersion-shifted fibers (DSFs) by applying three different tensile-strain distributions. The best results are obtained with a 40-step stair-ramp distribution, for which we demonstrate a 8-dB SBS threshold increase in a 580-m DSF. The Brillouin frequency is observed to shift as a function of the strain at a rate of 0.464 GHz/%. We discuss the potentials and drawbacks of this technique for application in nonlinear devices.

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Lightwave Technology, Journal of  (Volume:23 ,  Issue: 11 )