Optical waveguide laser, optical waveguide amplifier and preparation method thereof

Abstract

The invention relates to the laser filed, in particular an optical waveguide laser, an optical waveguide amplifier and a manufacturing method thereof. A laser gain medium sheet or a laser gain medium sheet stuck with an underlayer together is manufactured through a plurality of times of optical processing, cutting and polishing; and the gain medium sheet is stuck with an underlayer material together through agglutination, optical cementing or deep agglutination method. The laser gain medium is processed to form a waveguide laser gain medium cavity of which four sides are wrapped with an adhesive layer or a deep optical cementing layer through a plurality of times of optical processing and agglutination; and the end face of the waveguide laser gain medium cavity is an optical surface and is plated with a laser cavity film layer, thereby forming the laser or the amplifier with a waveguide structure. The waveguide cavity structure provides a method which can reduce a threshold value and can obtain laser through low-power pumping for various laser gain materials with high threshold values. The method for manufacturing the waveguide cavity has a simple process and is suitable for large-scale popularization.

Description

technical field [0001] The invention relates to the field of lasers, in particular to an optical waveguide laser, an optical waveguide amplifier and a manufacturing method thereof. Background technique [0002] In order to expand the laser output wavelength range of solid-state lasers, various dopant ions and matrix materials have been studied. Some of these dopant ions such as Yb 3+ , Er 3+ , Tm 3+ , Cr 3+ etc. have received widespread attention because they can output laser wavelengths with practical value. Unfortunately, some of these ions have a small stimulated emission cross-section at the emission wavelength, and some laser oscillation systems belong to three-level or quasi-three-level systems, so the oscillation threshold is high, the pumping efficiency is low, and high-power pumping is required. greatly limit their application. [0003] People use optical waveguide structure lasers to overcome these defects. An optical waveguide is a structure in which a regi...

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Problems solved by technology

At present, there are many methods for making this type of optical waveguide, such as ion implantation, diffusion, sputtering, etc., but these methods have complex processes, expensive equipment, and high requirements for materials, which reduce their use value.

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