International Journal of Optics / 2018 / Article / Fig 6

Review Article

Stimulated Brillouin Review: Invented 50 Years Ago and Applied Today

Figure 6

(a) Conceptual sketch of impulsive stimulated Brillouin scattering (ISBS), with psec pulses creating interfering acoustic waves through SBS. This modulates the probe, picked up by a high-speed photodetector, whose signal is shown in (b). The Fourier transform of this transient data is shown in (c), allowing direct determination of the Brillouin frequency shift and linewidth [adapted from [9]].

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