Transistor outline header for high-speed data transmission of optoelectronic applications

A header for optoelectronic applications, comprising:

• a header base extending in a height direction, a width direction, and a longitudinal direction, the header base having a base back face, a base front face, and an opening that extends from the base back face through the header base along the width direction to the base front face;
• a pin fixed in the opening so that the pin is electrically isolated from the header base;
• a first pedestal arranged at the base front face, the first pedestal being below, in the height direction, a center of the opening, the first pedestal comprises a pedestal mounting face, a pedestal free face that is opposite the pedestal mounting face, and an upper surface, the upper surface being sized and configured for mounting and carrying a pedestal submount,
• wherein the pedestal mounting face is fixedly attached to the base front face with an electrically conductive material that is at least partially arranged between the base front face and the pedestal mounting face.