An optoelectronic emitter with angular scanning, including: ∘ an array of resonant cavities (20 i), resting on a substrate defining a main plane, the resonant cavities (20 i) being: • arranged parallel to one another and each extending longitudinally according to a first axis of the array, • each formed of a stack of two opposite reflectors (21.1, 21.2) and of an interlayer located between the reflectors (21.1, 21.2), and having an emission face opposite to the substrate, • each adapted to emit, by the emission face, a so-called elementary light beam at a resonance frequency f r(i) specific to each resonant cavity (20 i), in response to a pulsed excitation optical signal, • each having a light storage time τ (i), which depends on coefficients of reflectivity of the reflectors (20.1, 21.2), on a thickness and on a refractive index of the intermediate layer; • configured to have a variation of the resonance frequencies f r(i) from one resonant cavity (20 i) to another, according to a second axis of the array perpendicular to the first axis, the angular scanning of the optoelectronic emitter then taking place in a plane perpendicular to that of the substrate and containing the second axis; ∘ an optical source adapted to emit said pulsed excitation optical signal so as to simultaneously illuminate and excite all of the resonant cavities (20 i), which is: • coherent; • with a pulse duration Δt e shorter than the light storage time τ (i) of each of the resonant cavities (20 i), and • with a spectral width Δf e centred on a central frequency f e, Δf e and f e being predefined so as to cover the range of the resonance frequencies f r(i) of the resonant cavities. ∘ an array of resonant cavities (20 i), resting on a substrate defining a main plane, the resonant cavities (20 i) being: • arranged parallel to one another and each extending longitudinally according to a first axis of the array, • each formed of a stack of two opposite reflectors (21.1, 21.2) and of an interlayer located between the reflectors (21.1, 21.2), and having an emission face opposite to the substrate, • each adapted to emit, by the emission face, a so-called elementary light beam at a resonance frequency f r(i) specific to each resonant cavity (20 i), in response to a pulsed excitation optical signal, • each having a light storage time τ (i), which depends on coefficients of reflectivity of the reflectors (20.1, 21.2), on a thickness and on a refractive index of the intermediate layer; • configured to have a variation of the resonance frequencies f r(i) from one resonant cavity (20 i) to another, according to a second axis of the array perpendicular to the first axis, the angular scanning of the optoelectronic emitter then taking place in a plane perpendicular to that of the substrate and containing the second axis; • arranged parallel to one another and each extending longitudinally according to a first axis of the array, • each formed of a stack of two opposite reflectors (21.1, 21.2) and of an interlayer located between the reflectors (21.1, 21.2), and having an emission face opposite to the substrate, • each adapted to emit, by the emission face, a so-called elementary light beam at a resonance frequency f r(i) specific to each resonant cavity (20 i), in response to a pulsed excitation optical signal, • each having a light storage time τ (i), which depends on coefficients of reflectivity of the reflectors (20.1, 21.2), on a thickness and on a refractive index of the intermediate layer; • configured to have a variation of the resonance frequencies f r(i) from one resonant cavity (20 i) to another, according to a second axis of the array perpendicular to the first axis, the angular scanning of the optoelectronic emitter then taking place in a plane perpendicular to that of the substrate and containing the second axis; ∘ an optical source adapted to emit said pulsed excitation optical signal so as to simultaneously illuminate and excite all of the resonant cavities (20 i), which is: • coherent; • with a pulse duration Δt e shorter than the light storage time τ (i) of each of the resonant cavities (20 i), and • with a spectral width Δf e centred on a central frequency f e, Δf e and f e being predefined so as to cover the range of the resonance frequencies f r(i) of the resonant cavities. • coherent; • with a pulse duration Δt e shorter than the light storage time τ (i) of each of the resonant cavities (20 i), and • with a spectral width Δf e centred on a central frequency f e, Δf e and f e being predefined so as to cover the range of the resonance frequencies f r(i) of the resonant cavities.