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. <EOS>