400G silicon photonic integrated optical module with photoelectric integrated substrate

A 400G silicon photonic integrated optical module with a photoelectric integrated substrate, comprising a printed circuit board (PCB) substrate, a fiber array, a detector assembly, a laser assembly, and a silicon substrate, wherein the fiber array, the detector assembly, and the laser assembly are mounted on a surface of the PCB substrate;

• a recessed groove is formed in the surface of the PCB substrate;
• the silicon substrate is attached in the recessed groove;
• the fiber array is located at one side of the recessed groove;
• and the detector assembly and the laser assembly are located at another side of the recessed groove;
• a plurality of optical waveguides are arranged in the silicon substrate in parallel;
• the optical waveguides each extend from one side of the recessed groove to another side of the recessed groove;
• a surface circuit board is further mounted at an upper side of the silicon substrate;
• and the surface circuit board is flush with the PCB substrate;
• a first microlens and a second microlens are further provided in the recessed groove;
• a fiber port of the fiber array is provided with a light reflecting surface;
• the first microlens is located directly below the light reflecting surface;
• and the second microlens is located directly below the detector assembly or the laser assembly;
• and
• an optical transmission path is formed among the fiber port of the fiber array, the first microlens, the optical waveguide, the second microlens and the detector assembly, or formed among the fiber port of the fiber array, the first microlens, the optical waveguide, the second microlens and the laser assembly.