Multi-layer planar waveguide structure of laser and preparation method of multi-wavelength organic laser

Abstract

The invention discloses a multi-layer planar waveguide structure of a laser and a preparation method of a multi-wavelength organic laser. The multi-layer planar waveguide structure is formed by cascade connection of at least two planar waveguide structure units; an intermediate modulation layer is arranged between the adjacent two planar waveguide structure units and is formed by a low-refractive-index super-thick transparent layer, and a high-reflectivity ultra-thin metal layer; and the intermediate modulation layer and a laser dye layer adjacent to the intermediate modulation layer form a planar waveguide unit. According to the invention, with introduction of the high-reflectivity metal layer, spontaneous radiation light is amplified and limited into the dye active layer; and the low-refractive-index super-thick transparent layer is added into the dye active layer and the metal modulation layer to reduce fluorescence quenching, and pumping energy is centralized into an optical waveguide. In order to obtain multi-waveband high-gain spontaneous radiation light amplification, the intermediate modulation layer is arranged to enable the ASE to be limited in the dye active layer; and under simulation of optical pumping, multi-waveband low-threshold laser can be obtained.

Description

technical field [0001] The invention relates to a preparation method of a laser, in particular to a preparation method of a multicolor laser, which is applied in the field of multi-wavelength organic laser technology. Background technique [0002] As an emerging science and technology, organic solid-state light-emitting diodes have gradually attracted people's attention due to their advantages such as small size, low cost, easy manufacturing, and can be realized on flexible substrates, and the wavelength range covers blue light to far infrared. Recently, organic laser oscillation with multiple wavelengths in the visible range has been realized, which is unmatched by inorganic semiconductor lasers. Generally speaking, because spectral analysis needs to provide multi-band lasers, the analysis system includes bulky gas lasers and solid-state lasers to provide light sources, so the current multi-wavelength laser analysis systems are huge. Therefore, it is of great significance ...

AI Technical Summary

Problems solved by technology

However, it is difficult to grow different inorganic materials on one substrate, so multicolor lasing is difficult to realize in inorganic semiconductor lasers

On the other hand, in the research history of organic lasers, some researchers have recently obtained multicolor laser light by mixing dyes, but the laser light produced by this dye mixing is very difficult to adjust its ratio.

Images