Optical transmission module, optical transmission apparatus, and structure for fixing member

摘要

An optical transmission module mounted pluggably to a cage having an opening. The optical transmission module comprises a gasket on at least a part of an outer periphery of the module. The gasket is deformed depending on temperature change. The gasket is deformed according to temperature rise in a direction toward an inner wall of the cage to push the inner wall and deformed according to temperature drop in an opposite direction to the direction.