Halbleiterringlaser

Details

Veröffentlichungs-Nr.

EP4811569

Anmeldetag

21. März 2025

Veröffentlichung

23. September 2026

Rechtsraum

EP

Abstract

A semiconductor ring laser (1) comprising a ring waveguide formed of a ridge (12) of semiconductor material having inner and outer sidewalls (14, 16) and a top surface (18). A mode selecting grating is arranged on at least one of the inner and outer sidewalls (14, 16) to define a ring cavity that supports a radiative and a non-radiative mode, the non-radiative mode having lower losses than the radiative mode so that the non-radiative mode becomes the lasing mode. An output coupler is arranged on at least one of the inner and outer sidewalls (14, 16) and configured such that, local to the output coupler, the non-radiative mode that is the lasing mode is forced into a radiative mode, or a mixed radiative and non-radiative mode, thereby to couple laser light out of the ring waveguide through at least one of the inner and outer sidewalls (14, 16).

Anmelder

Firma

Sensirion AG

Land

🇨🇭 Schweiz