Optoelectronic device for generating a frequency comb, comprising: ∘ a laser source adapted to emit a continuous and monochromatic optical signal of a time-constant pump wavelength (λ p), said signal being called pump signal; ∘ a ring optical microresonator, comprising: ▪ a waveguide, called coupling waveguide, comprising an input optically coupled to the laser source, and an output intended to supply the generated frequency comb; ▪ a first ring waveguide, called the resonant ring, coupled optically to the coupling waveguide to generate an optical mode in the resonant ring at a resonance wavelength (λ res), and formed in a third order optically non-linear material which exhibits a refractive index (n ar) and transverse dimensions (l ar, e ar) such that the resonant ring exhibits an abnormal dispersion regime associated with said optical mode; ∘ a spectral tuning device adapted to tune the resonance wavelength (λ res) relative to the pump wavelength (λ p) to form at least one dissipative temporal soliton in the resonant ring, comprising: ▪ a second ring waveguide, called junction guide, arranged facing the resonant ring so as to be longitudinally coupled optically along its longitudinal axis to the latter, formed in a material whose refractive index (n gj) exhibits a deviation with respect to that (n ar) of the core material of the resonant ring allowing the modal coupling between the two waveguides (20, 30), and comprising a semiconductor junction extending along its longitudinal axis locally parallel to that of the resonant ring; ▪ electrical biasing means adapted to apply a semiconductor junction biasing voltage; ▪ a control unit, connected to the biasing means and coupled optically to the output, adapted to modify the value of the voltage to cause a modification of an effective index of the optical mode and therefore of the resonance wavelength (λ res), until at least one dissipative temporal soliton is formed in the resonant ring. ∘ a laser source adapted to emit a continuous and monochromatic optical signal of a time-constant pump wavelength (λ p), said signal being called pump signal; ∘ a ring optical microresonator, comprising: ▪ a waveguide, called coupling waveguide, comprising an input optically coupled to the laser source, and an output intended to supply the generated frequency comb; ▪ a first ring waveguide, called the resonant ring, coupled optically to the coupling waveguide to generate an optical mode in the resonant ring at a resonance wavelength (λ res), and formed in a third order optically non-linear material which exhibits a refractive index (n ar) and transverse dimensions (l ar, e ar) such that the resonant ring exhibits an abnormal dispersion regime associated with said optical mode; ▪ a waveguide, called coupling waveguide, comprising an input optically coupled to the laser source, and an output intended to supply the generated frequency comb; ▪ a first ring waveguide, called the resonant ring, coupled optically to the coupling waveguide to generate an optical mode in the resonant ring at a resonance wavelength (λ res), and formed in a third order optically non-linear material which exhibits a refractive index (n ar) and transverse dimensions (l ar, e ar) such that the resonant ring exhibits an abnormal dispersion regime associated with said optical mode; ∘ a spectral tuning device adapted to tune the resonance wavelength (λ res) relative to the pump wavelength (λ p) to form at least one dissipative temporal soliton in the resonant ring, comprising: ▪ a second ring waveguide, called junction guide, arranged facing the resonant ring so as to be longitudinally coupled optically along its longitudinal axis to the latter, formed in a material whose refractive index (n gj) exhibits a deviation with respect to that (n ar) of the core material of the resonant ring allowing the modal coupling between the two waveguides (20, 30), and comprising a semiconductor junction extending along its longitudinal axis locally parallel to that of the resonant ring; ▪ electrical biasing means adapted to apply a semiconductor junction biasing voltage; ▪ a control unit, connected to the biasing means and coupled optically to the output, adapted to modify the value of the voltage to cause a modification of an effective index of the optical mode and therefore of the resonance wavelength (λ res), until at least one dissipative temporal soliton is formed in the resonant ring. ▪ a second ring waveguide, called junction guide, arranged facing the resonant ring so as to be longitudinally coupled optically along its longitudinal axis to the latter, formed in a material whose refractive index (n gj) exhibits a deviation with respect to that (n ar) of the core material of the resonant ring allowing the modal coupling between the two waveguides (20, 30), and comprising a semiconductor junction extending along its longitudinal axis locally parallel to that of the resonant ring; ▪ electrical biasing means adapted to apply a semiconductor junction biasing voltage; ▪ a control unit, connected to the biasing means and coupled optically to the output, adapted to modify the value of the voltage to cause a modification of an effective index of the optical mode and therefore of the resonance wavelength (λ res), until at least one dissipative temporal soliton is formed in the resonant ring.