一种采用离轴抛物面反射镜的激光加热系统
By employing an off-axis parabolic reflector and a coaxially mounted lens, the laser heating system solves the problems of low energy utilization and complex optical path adjustment caused by excessively long optical paths, achieving efficient laser heating and equipment stability.
CN120556147BActive Publication Date: 2026-07-17CHINA ELECTRONICS TECH GRP NO 26 RES INST
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- CHINA ELECTRONICS TECH GRP NO 26 RES INST
- Filing Date
- 2025-06-05
- Publication Date
- 2026-07-17
AI Technical Summary
Technical Problem
Existing laser heating devices have excessively long optical paths, resulting in low laser energy utilization, complex optical path adjustment, and poor equipment stability and reliability.
Method used
An off-axis parabolic reflector is used to replace the traditional focusing reflector. Combined with a coaxially mounted beam expander and collimating lens, visible light and laser light are combined into a coaxial beam. The optical path is adjusted and monitored through an adjustable attenuation device and a CCD diameter measuring device.
Benefits of technology
It shortens the optical path, improves laser energy utilization, simplifies optical path adjustment, enhances equipment stability and reliability, and reduces debugging and maintenance costs.
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Smart Images
Figure CN120556147B_ABST
Abstract
本发明公开了一种采用离轴抛物面反射镜的激光加热系统，包括激光发射器、扩束透镜、准直透镜和离轴抛物面反射镜，扩束透镜安装于激光发射器的光路输出端用于对激光光束进行扩束，准直透镜设置于扩束透镜的光路输出端，用于接收扩束后的光束并将其准直为平行光束；离轴抛物面反射镜用于接收平行光束，并将其反射聚焦至单晶光纤加热区域，离轴抛物面反射镜的反射面中心竖直贯穿有单晶光纤过孔，单晶光纤过孔和单晶光纤加热区域上下正对。本发明采用离轴抛物面反射镜进行聚焦反射能够有效缩短光程，提高激光能量的利用率，且结构简单，各装置同轴度高，可调节性强，成本造价低，利用此加热系统，能有效的对单晶光纤进行加热，以实现单晶光纤生长。
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