Two-wavelength semiconductor laser device and method of manufacturing the same

摘要

A two-wavelength semiconductor laser device includes a first conductive material substrate having thereon first and second regions separated from each other. A first semiconductor laser diode is formed on the first region. A non-active layer is formed on the second region and has the same layers as those of the first semiconductor laser diode. A second semiconductor laser diode is formed on the non-active layer. A lateral conductive region is formed at least between the first and second semiconductor laser diodes.