Anti-mode-hopping optical path system for silicon optical chip and method of anti-mode-hopping optical path system

The invention provides an anti-mode-hopping optical path system and method for a silicon optical chip, and the system comprises a 2MHz Dither generation module which is used for transmitting temperature-insensitive 2MHz square wave scrambling signal data to an operational amplification module; the operational amplification module receives the 2MHz square wave scrambling signal data with insensitive temperature to generate a Dither signal, and flexibly adjusts the duty ratio of the Dither signal as required; the resistance module is used for controlling the current intensity of the Dither signal to be 1%-5% of the amplitude of the bias current; the DFB laser module is used for loading the Dither signal after receiving the control current intensity into a DFB laser so as to prevent mode hopping of the DFB laser; the technical problems that the DFB laser is prone to mode hopping and component interference, and the heating amount of the DFB laser is large are solved, the space occupied by an optical path system i