| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a light-emitting device having a novel light-emitting element capable of reducing speckle noise and having high output. <P>SOLUTION: The light-emitting device 1000 includes the light-emitting element 100, and at least one optical member 158 provided on the side of the light-emitting element, wherein the light-emitting element has a clad layer, an active layer and another clad layer, at least one part of the active layer configures a plurality of gain regions 180, 182, the gain regions are provided in a direction inclined to a perpendicular of one side face from the one side face of the active layer to the other side face when viewed on a plane, the plurality of gain regions form at least one gain region pair, the first gain region of the gain region pair is provided in one direction A, a second gain region of the other side of the gain region pair is provided in another direction B, and the optical member causes light emitted from an end face 172 of the first gain region and an end face 176 of the second gain region in the same side face side of the active layer to be refracted and emitted as light propagating in the same direction. <P>COPYRIGHT: (C)2010,JPO&INPIT |
