Component for optical data transmission

An optical infrared transceiver for a bidirectional optical data transmission through the atmosphere, said optical infrared transceiver comprising a housing, an integrated circuit mounted in said housing for amplifying received and transmitted IR energy, an emitter chip for transmitting IR beams, a detector chip for receiving IR beams, a metallization on a central surface area between said detector chip and said emitter chip, said detector chip and said emitter chip forming a stack with said metallization between said emitter chip and said detector chip in said stack mounted in said housing, said stack having an optical axis centrally through said central surface area, an optical lens optically aligned with said optical axis for focusing received IR beams onto said detector chip and transmitted IR beams from said emitter chip;

• and wherein said integrated circuit has a first surface area, wherein said detector chip has a second surface area, wherein said emitter chip has a third surface area, wherein said first surface area is larger than said second surface area, and wherein said second surface area is larger than said third surface area.