Integrated surface emitting laser and light amplifier

摘要

An integrated surface emitting laser and light amplifier element having a high power output, and a large variable wavelength includes a surface light emitting laser having an active layer between two reflection films facing each other and a light amplifier including an amplifying active layer for amplifying a laser beam produced by the surface light emitting laser. The surface light emitting laser and the light amplifier are integrated on the same substrate.