An electro-optic Mach-Zehnder modulator arrangement, comprising - a first optical waveguide forming a first arm of the Mach-Zehnder modulator (1, 100); - a second optical waveguide forming a second arm of the Mach-Zehnder modulator (1, 100); - an electrode arrangement comprising at least one first waveguide electrode (21, 210) and at least one second waveguide electrode (22, 220) arranged on top of a capacitive segment (111, 1110, 121, 1210) of the first and the second optical waveguide (11, 12), respectively, such that a voltage can be applied across the capacitive segments (111, 1110, 121, 1210) of the first and second optical waveguide (11, 12); - at least one driver unit (41, 410) for supplying a voltage to the electrode arrangement, the driver unit (41, 410) comprising at least a first output port (441, 4410) coupled to the first waveguide electrode (21, 210) and a second output port ( 442, 4420) coupled to the second waveguide electrode (22, 220); and - a non-grounded conductive region (3, 30) via which the capacitive segment (111, 1110) of the first optical waveguide is connected to the capacitive segment (121, 1210) of the second optical waveguide such that the first and second waveguide electrodes (21, 210, 22, 220) are capacitively coupled to one another, - a DC-source connected to the first and/or the second waveguide electrode (21, 210, 22, 220) and the conductive region (3, 30) for supplying a bias voltage (V bias) across the capacitive segments (111, 1110, 121, 1210) of the optical waveguides (11, 12), characterized in that the driver unit is configured to supply a first varying signal (S+) to the first waveguide electrode via the first output port and to supply a second varying signal (S-) to the second waveguide electrode via the second output port, wherein the DC-source is connected to the first and the second waveguide electrode (21, 210, 22, 220) via a connecting point located between two terminating resistors (51, 52) coupled between the first and the second waveguide electrode (21, 210, 22, 220) such that the DC voltage is symmetrically supplied to the capacitive segments (111, 110, 121, 1210). - a first optical waveguide forming a first arm of the Mach-Zehnder modulator (1, 100); - a second optical waveguide forming a second arm of the Mach-Zehnder modulator (1, 100); - an electrode arrangement comprising at least one first waveguide electrode (21, 210) and at least one second waveguide electrode (22, 220) arranged on top of a capacitive segment (111, 1110, 121, 1210) of the first and the second optical waveguide (11, 12), respectively, such that a voltage can be applied across the capacitive segments (111, 1110, 121, 1210) of the first and second optical waveguide (11, 12); - at least one driver unit (41, 410) for supplying a voltage to the electrode arrangement, the driver unit (41, 410) comprising at least a first output port (441, 4410) coupled to the first waveguide electrode (21, 210) and a second output port ( 442, 4420) coupled to the second waveguide electrode (22, 220); and - a non-grounded conductive region (3, 30) via which the capacitive segment (111, 1110) of the first optical waveguide is connected to the capacitive segment (121, 1210) of the second optical waveguide such that the first and second waveguide electrodes (21, 210, 22, 220) are capacitively coupled to one another, - a DC-source connected to the first and/or the second waveguide electrode (21, 210, 22, 220) and the conductive region (3, 30) for supplying a bias voltage (V bias) across the capacitive segments (111, 1110, 121, 1210) of the optical waveguides (11, 12),