Alignment and coupling method and device of array waveguide component based on particle swarm optimization

Abstract

The invention discloses an alignment and coupling method and device of an array waveguide component based on the particle swarm optimization. The method comprises the steps that initial light searching is carried out on the array waveguide component, the peak positions based on the particle swarm optimization-mathematical optimization are searched, self-adaptation change inertia weight is added, and simulated analysis is carried out; limited measurement light power values are adopted and optimization iteration is carried out; and actual peak positions are found out through optimization iteration. The device comprises a CCD system device, a laser light source, a first locating module, a second locating module, a waveguide chip, first array optical fibers, second array optical fibers, a light power detection module, a control system and an alignment coupling algorithm module. According to the method and device, peak points can be found out through few iteration times based on the particle swarm optimization, searching efficiency is improved, man-made permission setting is not involved in the optimizing process, the defects of current automatic alignment and coupling are overcome, and the convergence rate, partial searching capacity and searching accuracy are improved.

Description

technical field [0001] The invention belongs to the field of arrayed waveguide devices, and in particular relates to a particle swarm algorithm-based alignment and coupling method and device for arrayed waveguide devices. Background technique [0002] Arrayed waveguide devices are key components in optical network communication systems, mainly used for conversion and transmission of optical signals. With the rapid development of optical communication systems, the demand for arrayed waveguide devices in this field is increasing, and the quality requirements for devices are also getting higher and higher. However, the high cost of arrayed waveguide devices has become one of the factors restricting the development of optical network communications. The manufacturing cost of arrayed waveguide devices is mainly concentrated in the packaging process, and the key technology of the packaging process is the coupling and alignment of photonic devices, so efficient The proposed coupli...

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Problems solved by technology

[0004] The purpose of the present invention is to provide an arrayed waveguide device alignment coupling method and device based on the particle swarm algorithm, aiming to solve the problem of low alignment accuracy and the need for more coupling times in the traditional arrayed waveguide device alignment coupling method. Low efficiency, low-loss fast alignment coupling between waveguide chip and array fiber, and low degree of automation

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