Automatic laser welding device for fibre-optical active component

Abstract

The automatic laser welding apparatus for active fiber device includes a work table, a control unit, a laser welding mechanism and a precise butt jointing mechanism, and the laser welding mechanism and the precise butt jointing mechanism are installed on the work table. The precise butt jointing mechanism includes a fiber position regulating mechanism and a light source device position regulating mechanism, the fiber position regulating mechanism includes three successively superposed 1D translation stages and one fiber device fixture on the stages, and the light source device position regulating mechanism includes one 2D inclined stage and two orthogonal micro platforms in the same structure and on the inclined stage. The control unit includes one host control computer and one light power meter and is connected via cables to other mechanisms. The present invention has the advantages of simple structure, simple control, low cost, great stroke, high resolution, etc.

Description

technical field [0001] The invention mainly relates to the submicron manufacturing theory and key technical fields of optical fiber devices, in particular to an automatic laser welding device for optical fiber active devices. Background technique [0002] In the prior art, optical fiber active devices include components and modules of various optoelectronic devices such as light sources (LD, LED), detectors, optical amplifiers, light source-fiber couplers, and light source-detection couplers. Optical fiber active components are the core of the optical fiber application system, which not only affects the performance of the system, but also has a great impact on the cost of the entire system. How to couple light from the light source into the optical fiber to obtain high coupling efficiency is a key issue in the packaging of optical fiber active devices. The core technology is to achieve sub-micron alignment and welding. [0003] At present, the alignment in the packaging of...

AI Technical Summary

Problems solved by technology

Due to the manual operation, it is particularly dependent on the proficiency of the operator, and it also has the disadvantages of slow speed, low output, low yield, poor device performance consistency, high product cost and price. At present, military and civilian fields are demanding high performance and low cost. The demand for optical fiber active devices is increasing, so it is necessary to develop an automatic laser welding device to complete automatic alignment and welding packaging on the submicron scale. Among them, the most critical technology lies in the alignment of high motion resolution mechanism

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