  We report the thermal control of a dissipative Kerr microresonator soliton
comb via an optical sideband generated from an electro-optic modulator. Same as
the previous reports using an independent auxiliary laser, our sideband-based
(S-B) auxiliary light also enables to access a stable soliton comb and to
reduce the phase noise of the soliton comb, greatly simplifying the setup with
an auxiliary laser. More importantly, because of the intrinsically high
frequency/phase correlation between the pump and S-B auxiliary light, the
detuning between the pump and resonance frequency is automatically almost
fixed, allowing the 18 times larger "effective"soliton existence range than the
conventional method using an independent auxiliary laser, as well as the
scanning of the soliton comb of more than 10 GHz without using microheaters.
