Electro-optical modulator driving device for suppressing pilot frequency stray

The invention provides an electro-optical modulator driving device for suppressing pilot frequency stray, and relates to the technical field of electro-optical modulators. An output end of a bias voltage control module is connected with a bias voltage input end of an electro-optical modulator; a laser driving module comprises a first digital-to-analog converter and a driving unit which are connected with each other, and the first digital-to-analog converter is used for synthesizing a pilot current signal and transmitting the pilot current signal to the driving unit to be combined with a driving current; and the output end of the driving unit is connected with the driving current input end of the laser. On the basis of a conventional pilot frequency method, in combination with the laser driving device, stray introduced by pilot frequency signals is automatically suppressed, and the performance of a radio frequency signal transmission system is effectively improved. 本发明提供一种抑制导频杂散的电光调制器驱动装置，涉及电光调制器技术领域。本发明中偏压控制模