Heizmodul für ein optisches Wellenleiterelement

摘要

To provide a heater module which can improve the temperature uniformity in an optical waveguide while keeping the power consumption and the thickness of the optical waveguide module. A heater module (20) in accordance with the present invention is a heater module (20) for heating an optical waveguide device (12) so as to regulate its temperature; and comprises a heat-generating circuit adapted to generate heat when energized, and a heat-transmitting section disposed on the upper face of the heat-generating circuit and formed with a recessed groove portion for mounting the optical waveguide device (12). When the optical waveguide device (12) is mounted on the bottom face of the heat-transmitting section (21) formed with the recessed groove section, the optical waveguide device (12) can be heated not only from its bottom face, but also from its side faces by edge parts constituting the recessed groove portion, whereby the temperature uniformity can be enhanced.