RIDGE WAVEGUIDE TYPE SEMICONDUCTOR LASER DIODE

摘要

PPROBLEM TO BE SOLVED: To provide a ridge waveguide type semiconductor laser diode, the drive power of which is small. PSOLUTION: In the ridge waveguide type semiconductor laser diode, having an upper multi-semiconductor layer 160 in which a lower multi-semiconductor layer 110, an active layer 150, and a ridge part are laminated sequentially on a substrate 100 and an upper electrode 200, the upper electrode covers a region that includes at least a part of the side face of the ridge part, and a current is injected via a part of the side face. PCOPYRIGHT: (C)2007,JPO&INPIT