800G optical module with single-mode bidirectional fiber

An 800G optical module with single-mode bidirectional fiber, comprising a housing and a printed circuit board (PCB) substrate in the housing,

• wherein two lenses are provided on the PCB substrate side by side along a width direction of the PCB substrate;
• a filter and a beam splitter are provided in each of the lenses;
• a groove with a downward rabbet is formed at a bottom of the lens;
• the groove of the lens is covered by one light emission assembly and one light reception assembly;
• both the light emission assembly and the light reception assembly are fixed on an upper surface of the PCB substrate;
• an end of the lens is connected to a fiber array;
• two fiber arrays are connected to one optical connector;
• and a connecting fiber between the fiber array and the optical connector is a single-mode bidirectional fiber;
• and
• light emitted from the light emission assembly is transmitted to the optical connector through the lens, the beam splitter, the filter, and the fiber array;
• and light received by the fiber array is transmitted to the light reception assembly through the filter and the lens;
• wherein the light reception assembly comprises a light receiving chip and a trans-impedance amplifier at a side of the light receiving chip;
• and the trans-impedance amplifier is fixed on the upper surface of the PCB substrate.