Fiber Bragg Gratings in the Ultrashort Pulse Regime
Fiber gratings have numerous applications for optical communications and sensing. They are typically used with incoherent broadband sources or continuous-wave (cw) and quasi-cw (pulsed) sources, whose spectral bandwidth is narrower than that of the grating response. Linear pulse propagation through gratings for the above cases has been studied and is well understood.1 Recently, there have also been investigations of propagation through fiber gratings under different regimes than those already listed. For example, Eggleton et al. have experimentally studied nonlinear propagation through various grating structures.
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