An exemplary embodiment of the present invention relates to an electro-optic modulator for modulating optical radiation. The electro-optic modulator comprises at least one upstream modulation subunit, at least one downstream modulation subunit and at least one phase-matching unit. The upstream and downstream modulation subunits are optically connected in series such that the optical radiation passes the downstream modulation subunit after passing the upstream modulation subunit. An electrical upstream modulation signal may be applied to the upstream modulation subunit, and an electrical downstream modulation signal may be applied to the downstream modulation subunit. The phase-matching unit is configured to delay the downstream modulation signal such that a phase difference between the upstream modulation signal and the downstream modulation signal is minimal.