Oberflächenemittierender Laser mit Zweidimensionalem Photonischem Kristall

Details

Veröffentlichungs-Nr.

EP4807921

Anmeldetag

30. August 2024

Veröffentlichung

15. Mai 2025

Rechtsraum

EP

IPC

H01S5/11, H01S5/183

Abstract

A two-dimensional photonic crystal surface emitting laser (10) includes: a plurality of active layers (111, 112); a p-type cladding layer (13P) and an n-type cladding layer (13N); a tunnel junction layer (14) formed by a p-type tunnel junction layer (14P) and an n-type tunnel junction layer (14N) which are provided between each neighboring pair of layers among the plurality of active layers; a two-dimensional photonic crystal layer (12) provided between the p-type cladding layer and the n-type cladding layer; and a pair of electrodes (191, 192). The distance between the p-type cladding layer and the n-type cladding layer as well as the material of each of the aforementioned layers are set so that light having a predetermined frequency is confined between the p-type cladding layer and the n-type cladding layer as well as forms a higher-order vertical mode field distribution having the same number of nodes as the number of tunnel junction layers. Each of the tunnel junction layers is located at a position closer to a node between the p-type cladding layer and the n-type cladding layer than to an antinode of the higher-order vertical mode field distribution.

Anmelder

Firma

Kyoto University

Land

🇯🇵 Japan

Fachgebiete