Figure 10

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Si-based multi-wavelength self-injection InAs/GaAs QD MLLs with an external fiber cavity. (A) The schematics of chirped InAs QD laser on Si self-injection locked into multiple wavelengths via PM fiber based external cavity. Original optical spectrum (B) and the multi-wavelength injection locked comb spectrum (C) of the MLL operated at a low injection current of 75 mA. Original optical spectrum (D) and the multi-wavelength injection locked comb spectrum (E) of the MLL operated at a high injection current of 125 mA.

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