| 摘要 |
PURPOSE: To provide a light-emitting device, which can be easily manufactured and can precisely control an output position of a light, and an optical device using the light-emitting device. CONSTITUTION: A first light-emitting element 20 and a second light-emitting element 30 are formed on one surface side of a retaining base substance 11. The first light-emitting element 20 has an active layer 23, composed of GaInN mixed crystal on the retaining base substance 11 side of a first substrate 21 composed of GaN. The second light-emitting element 30 has laser oscillating parts 40, 50 on the retaining base substance 11 side of a second substrate 31 made of GaAs. Since growing of the first light-emitting element 20 and the second light-emitting element 30 on the same substrate is unnecessary, a multi- wavelength laser having light-emitting wavelengths of about 400 nm can be easily obtained. Since the first substrate 21 is composed of material which is transparent in a visible region, positions of the light-emitting regions of the first light-emitting element 20, and the second light-emitting element 30 can be controlled precisely by using lithographic technique. |
