Figure 9
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Si-based self-injection mode locked InAs/GaAs QD laser. (A) Color-enhanced SEM image of an initial Si-based ridge laser with the ridge width of 4 μm; (B) evolution of the RF spectra with different feedback strength; (C) the comparison of the RF spectra at 23.4 GHz of the MLL at mode-locked mode and free running mode.
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