Light emitting device and projector

摘要

In a light emitting device, a light waveguide is provided with a first region including a central position, a second region including a first light emission surface, and a third region including a second light emission surface. A second cladding layer includes a plurality of noncontact regions. The plurality of noncontact regions intersect the light waveguide. A ratio of an area in which the plurality of noncontact regions overlap the first region to an area of the first region is greater than a ratio of an area in which the plurality of noncontact regions overlap the second region to an area of the second region, and is greater than a ratio of an area in which the plurality of noncontact regions overlap the third region to an area of the third region.

主权项

1. A light emitting device comprising:
an active layer configured to generate light in correspondence with a current injected thereinto; a first cladding layer and a second cladding layer sandwiching the active layer therebetween; and a first electrode and a second electrode configured to inject the current into the active layer, wherein the active layer constitutes a light waveguide through which the light is guided, wherein the light waveguide is provided with:
a first light emission surface and a second light emission surface from which the light is emitted;a first region including a midpoint that is equidistant from the first light emission surface and the second light emission surface;a second region including the first light emission surface; anda third region including the second light emission surface, wherein the second cladding layer includes a plurality of noncontact regions that are not electrically connected to the second electrode, wherein the plurality of noncontact regions intersect the light waveguide in a plan view, and wherein, in the plan view, a ratio of an area in which the plurality of noncontact regions overlap the first region to an area of the first region is greater than a ratio of an area in which the plurality of noncontact regions overlap the second region to an area of the second region, and is greater than a ratio of an area in which the plurality of noncontact regions overlap the third region to an area of the third region.