A system for balancing an optical receiver circuit, comprising: a photodetector circuit comprising a first photodetector and a second photodetector; and a transimpedance amplifier circuit coupled to the photodetector circuit, wherein the transimpedance amplifier circuit comprises: a first input terminal, coupled to the photodetector circuit, configured to obtain a first photocurrent from the first photodetector, a second input terminal, coupled to the photodetector circuit, configured to obtain a second photocurrent from the second photodetector, an amplifier (241, 242), coupled to the first input terminal and the second input terminal, configured to output a first output signal, at a first output terminal of the amplifier, as a function of the first photocurrent and a second output signal, at a second output terminal of the amplifier, as the function of the second photocurrent, a first transimpedance gain controller, coupled to the first input terminal and the first output terminal, configured to reduce a first difference in photodetector responsivity at the amplifier between the first photodetector and the second photodetector, and a first frequency response controller, coupled to the first input terminal and the first output terminal, configured to change a first amplitude within a first frequency response of a first photocurrent path from the first photodetector, wherein changing the first amplitude within the first frequency response reduces a second difference between the first frequency response and a second frequency response of a second photocurrent path from the second photodetector. a photodetector circuit comprising a first photodetector and a second photodetector; and a transimpedance amplifier circuit coupled to the photodetector circuit, wherein the transimpedance amplifier circuit comprises: a first input terminal, coupled to the photodetector circuit, configured to obtain a first photocurrent from the first photodetector, a second input terminal, coupled to the photodetector circuit, configured to obtain a second photocurrent from the second photodetector, an amplifier (241, 242), coupled to the first input terminal and the second input terminal, configured to output a first output signal, at a first output terminal of the amplifier, as a function of the first photocurrent and a second output signal, at a second output terminal of the amplifier, as the function of the second photocurrent, a first transimpedance gain controller, coupled to the first input terminal and the first output terminal, configured to reduce a first difference in photodetector responsivity at the amplifier between the first photodetector and the second photodetector, and a first frequency response controller, coupled to the first input terminal and the first output terminal, configured to change a first amplitude within a first frequency response of a first photocurrent path from the first photodetector, wherein changing the first amplitude within the first frequency response reduces a second difference between the first frequency response and a second frequency response of a second photocurrent path from the second photodetector. a first input terminal, coupled to the photodetector circuit, configured to obtain a first photocurrent from the first photodetector, a second input terminal, coupled to the photodetector circuit, configured to obtain a second photocurrent from the second photodetector, an amplifier (241, 242), coupled to the first input terminal and the second input terminal, configured to output a first output signal, at a first output terminal of the amplifier, as a function of the first photocurrent and a second output signal, at a second output terminal of the amplifier, as the function of the second photocurrent, a first transimpedance gain controller, coupled to the first input terminal and the first output terminal, configured to reduce a first difference in photodetector responsivity at the amplifier between the first photodetector and the second photodetector, and a first frequency response controller, coupled to the first input terminal and the first output terminal, configured to change a first amplitude within a first frequency response of a first photocurrent path from the first photodetector, wherein changing the first amplitude within the first frequency response reduces a second difference between the first frequency response and a second frequency response of a second photocurrent path from the second photodetector.