Integrated optical fiber laser collimator and manufacturing device thereof

Abstract

The invention relates to an integrated optical fiber laser collimator and a manufacturing device thereof. One end of an optical fiber of the optical fiber laser collimator is connected with a laser; the other end is connected with a bucket-shaped sleeve; and a droplet lens is arranged in the sleeve. The manufacturing device of the optical fiber laser collimator comprises a transparent or netted upper electrode, a lower electrode, a high-frequency alternating-current / direct-current power supply, a solidification mechanism and a light beam divergence angle detection device, wherein a through hole is reserved in the centre of the lower electrode; a positioning convex ring is arranged in a lower port of the through hole; the solidification mechanism is an annular ultraviolet source and is positioned between the upper electrode and the lower electrode; and the light beam divergence angle detection device is positioned above the upper electrode. The collimator has a good collimation effect, greatly reduces the optical energy loss of an end surface, and improves an energy transmission threshold. The device combines electric field droplet surface shape regulation and control, liquid micro-lens solidification, and lens surface shape and collimation effect real-time detection, detects a light beam divergence angle in real time, ensures the synchronization of manufacture and detection, and reduces a rejection rate.

Description

Technical field [0001] The invention belongs to the technical field of laser fibers, and in particular relates to an integrated fiber laser collimator and a manufacturing device thereof. Background technique [0002] In the existing laser fiber collimator, the collimating lens and the fiber end face are usually glued together to glue the self-focusing lens, aspheric lens, spherical lens or lens group on the fiber end face. The collimator produced by the method has the following problems: 1. There are installation errors, which affect the collimation effect; 2. The adhesive in the optical path is easily damaged in the high-power laser; 3. The detection and production are not synchronized, and it is difficult to control the collimator High precision and high rejection rate. In order to improve the performance of the collimator, a lot of research work has been done. For example, the Chinese patent "New Type of Optical Fiber Collimator" 02112329.2 proposes a collimator structure wi...

AI Technical Summary

Problems solved by technology

[0004] In order to solve the problems of installation and adjustment errors in fiber laser alignment technology, adhesives and air gaps that easily damage fiber end faces, and detection and manufacturing asynchronous problems

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