Lichtemittierendes Element und Abstandsmessvorrichtung

Details

Veröffentlichungs-Nr.

EP4804351

Anmeldetag

23. Februar 2026

Veröffentlichung

9. September 2026

Rechtsraum

EP

Abstract

A light emitting element includes a first reflection mirror provided on a semiconductor substrate, a second reflection mirror provided on the first reflection mirror, a resonator provided between the first reflection mirror and the second reflection mirror, an active layer included in the resonator and including a quantum well layer and a barrier layer, a doped layer provided on at least one of a side of the active layer facing the semiconductor substrate and a side opposite to the semiconductor substrate, a spacer layer provided between the doped layer and the barrier layer and having a band gap larger than a band gap of the barrier layer, and a saturable absorption layer provided between the semiconductor substrate and the second reflection mirror, wherein a doping concentration of the spacer layer is lower than a doping concentration of the doped layer.

Anmelder

Firma

Canon Kabushiki Kaisha

Land

🇯🇵 Japan