Q-switched semiconductor light-emitting element and distance measuring device

Abstract

There is provided a Q-switched semiconductor light-emitting element, including a comb electrode that has at least two or more gain regions and two or more absorption regions, the regions including an active layer and being continuous on a semiconductor substrate, separation regions being provided between the gain regions and the absorption regions, the longest region of the gain regions being located on a rear end surface side; and an optical waveguide that staddles the gain regions, the absorption regions, and the separation regions.

Dependencies are inferred from the claim text.