A chip on submodule includes a submount having a top surface, bottom surface and side surfaces. A positive electrode plate is affixed to a first portion of one side surface, the top surface and a first portion of the bottom surface. The positive electrode plated first portion of the one side surface and the top surface are interconnected. A connector electrically connects the positive electrode plated top surface to the first portion of the bottom surface. A negative electrode plate is affixed to a second portion of the one side surface and a second portion of the bottom surface. The negative electrode plated second portion of the one side surface and second portion of the bottom surface are interconnected. A laser diode is affixed to the positive electrode plated first portion of the one side surface and connected to the negative electrode plated second portion of the one side surface.