A kind of simple preparation method of optical waveguide

Abstract

The invention discloses a simple manufacturing method for an optical waveguide. The method comprises the steps that a groove is formed in one surface of one substrate in the length direction, then two substrates are stacked in order, the surface, with the groove, of one substrate is made to be opposite to one surface of the other substrate, a pair of flat tongs is used for adjusting the gap between the two substrates, spot welding is carried out on aligned spot welding end faces of the two substrates, then the two substrates welded together are placed into an inner cavity of a quartz glass tube, low-melting-point glass raw materials are poured into the inner cavity of the quartz glass tube, the inner cavity of the quartz glass tube is vacuumized, the quartz glass tube is sealed, stepped heating is carried out on the sealed quartz glass tube, the glass raw materials are molten, the indoor temperature is obtained through stepped cooling, and therefore the optical waveguide is obtained. The simple manufacturing method has the advantages that the technological process is simple and controllable, and operation equipment is low in cost.

Description

technical field [0001] The invention relates to a waveguide preparation technology, in particular to a simple preparation method for an optical waveguide. Background technique [0002] With the continuous improvement of the requirements of the information age, the development of optical devices has developed from traditional discrete optical devices to the current stage of integrated optical devices. Optical waveguide is an important basic component of various integrated optical devices, which can confine light waves in the medium of optical wavelength order and transmit them without radiation. [0003] The existing optical waveguide preparation methods are relatively complicated, and the general optical waveguide preparation methods are all realized through a series of complicated processes on the basis of thin film preparation methods. The existing optical waveguide preparation methods mainly include photolithography, lift-off method, and laser direct writing method. The ...

AI Technical Summary

Problems solved by technology

[0003] The existing optical waveguide preparation method is relatively complicated. The general optical waveguide preparation method is based on the thin film preparation method and realized through a series of complicated processes.

The existing optical waveguide preparation methods mainly include photolithography, lift-off method, and laser direct writing method. The equipment used in these preparation methods is expensive, and there are cumbersome processes and complicated process parameters in the process of etching thin films. It brings great difficulty to the preparation of optical waveguide

Images