Patent ID: 6021149
Filing Date: 2000-02-01
Classification: H01S

Abstract:
An optical semiconductor module comprising:a substrate including a first plate member including strip lines, for transmitting a high-frequency signal, on a surface of the first plate member, and a second plate member provided together with the first plate member, the second plate member including a feeding line on a surface of the second plate member, the first plate member comprising a material having a loss angle at high frequency smaller than that of the second plate member, and the second plate member comprising a material having a higher heat conductivity than the first plate member; andan integrated semiconductor laser and modulator including a modulator region having surface electrodes, and a laser region having a surface electrode, and an optical axis extending along the optical axis of the modulator region, the integrated semiconductor laser and modulator being located on the substrate such that the surface electrodes of the modulator region are bonded to the strip lines and the surface electrode of the laser region is bonded to the feeding line.