An optoelectronic transmitter with a phased array antenna on a photonic chip, comprising: ∘ a power splitter, intended to be coupled at its input to a laser source, and coupled at its output to N waveguides forming the arms of the optoelectronic transmitter, with N>1; ∘ an array of phase shifters and elementary emitters, arranged in the arms, the elementary emitters being laterally aligned and extending parallel to each other; ∘ an integrated control device comprising: • input waveguides, coupled to the elementary emitters; • a focusing lens, comprising an input face (8.1) coupled to the input waveguides, and an output face (8.3); • output waveguides, coupled to the output face (8.3); • photodiodes, coupled to the output waveguides; • a control module, adapted to control the phase shifters based on signals received by the photodiodes; ∘ characterised in that: • the focusing lens is an interferometric lens whose input (8.1) and output (8.3) faces are curved and delimit a free propagation region (8.2) with a homogeneous refractive index, the output face (8.3) extending along a focal line of the focusing lens; • the input waveguides being connected to the input face (8.1) orthogonally thereto; • an effective index of the guided modes, in a portion called correction portion (Pc) of the input waveguides, being adapted such that the optical paths (C (i)) of the input waveguides are identical to each other. ∘ a power splitter, intended to be coupled at its input to a laser source, and coupled at its output to N waveguides forming the arms of the optoelectronic transmitter, with N>1; ∘ an array of phase shifters and elementary emitters, arranged in the arms, the elementary emitters being laterally aligned and extending parallel to each other; ∘ an integrated control device comprising: • input waveguides, coupled to the elementary emitters; • a focusing lens, comprising an input face (8.1) coupled to the input waveguides, and an output face (8.3); • output waveguides, coupled to the output face (8.3); • photodiodes, coupled to the output waveguides; • a control module, adapted to control the phase shifters based on signals received by the photodiodes; • input waveguides, coupled to the elementary emitters; • a focusing lens, comprising an input face (8.1) coupled to the input waveguides, and an output face (8.3); • output waveguides, coupled to the output face (8.3); • photodiodes, coupled to the output waveguides; • a control module, adapted to control the phase shifters based on signals received by the photodiodes; ∘ characterised in that: • the focusing lens is an interferometric lens whose input (8.1) and output (8.3) faces are curved and delimit a free propagation region (8.2) with a homogeneous refractive index, the output face (8.3) extending along a focal line of the focusing lens; • the input waveguides being connected to the input face (8.1) orthogonally thereto; • an effective index of the guided modes, in a portion called correction portion (Pc) of the input waveguides, being adapted such that the optical paths (C (i)) of the input waveguides are identical to each other. • the focusing lens is an interferometric lens whose input (8.1) and output (8.3) faces are curved and delimit a free propagation region (8.2) with a homogeneous refractive index, the output face (8.3) extending along a focal line of the focusing lens; • the input waveguides being connected to the input face (8.1) orthogonally thereto; • an effective index of the guided modes, in a portion called correction portion (Pc) of the input waveguides, being adapted such that the optical paths (C (i)) of the input waveguides are identical to each other.