Laser device on the basis of a photonic crystal having pillar-shaped or wall-shaped semiconductor elements, and methods for the operation and production thereof

Abstract

The invention relates to a laser device (100) comprising a substrate (10), on the surface of which an optical waveguide (11) is arranged, which has an optical resonator (12, 13) with such a resonator length that at least one resonator mode forms a stationary wave in the resonator (12, 13), and an amplification medium that is arranged on a surface of the optical waveguide (11), wherein the amplification medium comprises a photonic crystal (20) having a plurality of column- and/or wall-shaped semiconductor elements (21) which are arranged periodically on the surface of the optical waveguide (11) while protruding from the optical waveguide (11), and wherein the photonic crystal (20) is designed to optically interact with the at least one resonator mode of the optical resonator (12, 13) and to amplify light having a wavelength of the at least one resonator mode of the optical resonator (12, 13). The invention also relates to methods for the operation and production of the laser device.

Dependencies are inferred from the claim text.