Optical module

An optical module, comprising:

• a printed circuit board assembly (PCBA) comprising a printed circuit board (PCB) and one or more optoelectronic components mounted to the PCB, wherein the PCB includes an upper surface and a bottom surface arranged opposite to the upper surface;
• an optical port for receiving or transmitting an optical signal, wherein the optical port is optically coupled to the one or more optoelectronic components;
• a plurality of elastic bodies;
• a housing comprising a first housing body and a second housing body fastened to the first housing body to form an enclosure that defines an interior volume of the housing,
• wherein the PCBA is arranged within the interior volume,
• wherein the first housing body includes a plurality of first lug bosses configured to be in fitted contact with the upper surface of the PCB,
• wherein the second housing body includes a plurality of second lug bosses, and
• wherein each second lug boss of the plurality of second lug bosses contains a respective elastic body of the plurality of elastic bodies, which protrudes from the second lug boss to make pressure contact with the bottom surface of the PCB;
• and
• a hard-constraint fixing mechanism configured to rigidly fix a first end portion of the PCB to the first housing body.