Fig. 1. Frequency spectrum filtered by the TBGs and the FM-to-AM conversion: (a) and (b) TBG-1, (c) and (d) TBG-2, (e) and (f) TBG-3, (g) and (h) TBG-4.

Fig. 2. Dependence of the distortion criterion on the bandwidth.

Fig. 3. Dependence of the Bragg selectivity on the grating period and thickness: (a) $\unicode[STIX]{x1D706}_{0}=1053$ nm, $d=2.5$ mm, $\unicode[STIX]{x1D719}=90^{\circ }$; (b) $\unicode[STIX]{x1D706}_{0}=1053$ nm, $\unicode[STIX]{x1D6EC}=1.5~\unicode[STIX]{x03BC}\text{m}$, $\unicode[STIX]{x1D719}=90^{\circ }$.

Fig. 4. Bragg selectivity for TBG-3, TBG-3-O, TBG-4 and TBG-4-O.

Fig. 5. Frequency spectrum filtered by optimized TBGs and the FM-to-AM conversion: (a) and (b) TBG-3-O, (c) and (d) TBG-4-O.

Fig. 6. Dependence of the distortion criterion on the number of TBGs.

Fig. 7. Schematic diagram demonstrating FM-to-AM conversion on TBGs.

Fig. 8. Fluctuation of the inclined laser pulse.

Fig. 9. Frequency spectra filtered by TBGs and temporal profiles of the laser pulses: (a) and (b) TBG-I, (c) and (d) TBG-II, (e) and (f) TBG-III.