Optical waveguide containing Cu ion

Abstract

The invention discloses an optical waveguide containing Cu ions. A plate-shaped Cu ion diffusion area is provided on the upper surface of the glass substrate, and a strip-shaped high-polarizability ion diffusion area is arranged in the flat-shaped Cu ion diffusion area. The strip-shaped high-polarizability ion diffusion area is used as the core layer of the optical waveguide. The refractive index of the strip-shaped high polarizability ion diffusion region is higher than that of the glass substrate, and also higher than that of the plate-shaped Cu ion diffusion region. Because the strip-shaped high-polarizability ion diffusion region is formed on the basis of the plate-shaped Cu ion diffusion region, this ion-exchange optical waveguide has the blue-green luminescence characteristic of Cu ions. At the same time, the manufacturing process of the optical waveguide avoids the ion exchange process of Cu salt ion exchange to form the strip optical waveguide under high temperature conditions, reduces the requirement for the mask, and thus has lower cost.

Description

technical field [0001] The invention relates to integrated optical device technology, in particular to an optical waveguide containing Cu ions. Background technique [0002] Integrated optical circuit means that on the surface of the same substrate, optical waveguides are made of materials with a slightly higher refractive index, and various optical devices such as light sources and gratings are made on this basis. Through this integration, the miniaturization, weight reduction, stabilization and high performance of the optical system can be realized. With the development of modern optical fiber communication technology and optical fiber sensing technology, people pay more and more attention to integrated optical devices. [0003] The materials used for the production of integrated optical devices mainly include III-V semiconductor materials such as Si, silicon dioxide, gallium arsenide and indium phosphide, polymers, glass, etc. The glass optical waveguide device based on...

AI Technical Summary

Problems solved by technology

The disadvantage of this kind of optical waveguide is: because the salt containing Cu ions has a high melting point, on the other hand, the diffusion speed of Cu ions in the glass is very slow, and the exchange temperature of Cu ion exchange is very high, usually above 530 ° C. The high temperature resistance and corrosion resistance characteristics of mask 2 put forward higher requirements

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