Hybrid optical element and photodetector device

摘要

The present invention concerns a hybrid optical element including at least one optical element (2) attached to one surface of a substrate (1), a semiconductor laser (3) and a photodetector (4) attached to the other surface of the substrate (1) and an intermediate member (relay substrate) (5) interposed between the substrate (1) and the photodetector (4). The intermediate member (5) has a through hole (6) through which a light flux incident on the photodetector (4) is allowed to pass and a part with a conductivity by which a terminals of the photodetector (4) are connected to a conductor pattern on the substrate (1).