Fig. 1. Diffraction efficiency curve of AOD in x-axis direction

Fig. 2. Multitone RF signals. (a) 33-tone time-domain signal with a random initial phase for each frequency; (b) 33-tone time-domain signal with a consistent initial phase of 0 for each frequency. Insets show close-ups of time-domain signals

Fig. 3. RF signals loaded on AOD. Corresponding frequencies are (a) 55, 63, 71 MHz; (b) 55, 59, 63, 67, 71 MHz; (c) 55, 56, …, 70, 71 MHz; (d) 55, 55.5, …, 70.5, 71 MHz

Fig. 4. Schematic diagram of light spot captured by CCD camera

Fig. 5. 1D laser beam array captured by CCD camera. (a1)-(a4) Generated 1D laser beam array; (b1)-(b4) corresponding intensities of spots across 1D laser beam array

Fig. 6. Schematic diagram of high-speed GHz ultrafast laser scanning system at 920 nm using AOD

Fig. 7. Frequency spectrum of beating signal after performing FFT

Fig. 8. Typical beating signal detected by PD. Inset exhibits detail features of beating signal

Fig. 9. RF spectra of signals after performing FFT with average times of 1 and 16 respectively

Fig. 10. RF spectra of beating signals after performing FFT. Corresponding frequencies are (a) 15, 23, 31 MHz; (b) 15, 19, 23, 27, 31 MHz; (c) 15, 16, …, 30, 31 MHz; (d) 15, 15.5, …, 30.5, 31 MHz