State-of-the-Art Technologies in Piezoelectric Deformable Mirror Design

被引：14
|
作者：
Toporovsky, Vladimir [1 ]
Kudryashov, Alexis [1 ]
Skvortsov, Arkadiy [2 ]
Rukosuev, Alexey [1 ]
Samarkin, Vadim [1 ]
Galaktionov, Ilya [1 ]
机构：
[1] Russian Acad Sci, Sadovsky Inst Geosphere Dynam, Leninskiy Pr 38-1, Moscow 119334, Russia
[2] Moscow Polytech Univ, Transport Fac Dept, Bolshaya Semenovskaya Str 38, Moscow 107023, Russia
来源：
PHOTONICS | 2022年 / 9卷 / 05期
基金：
俄罗斯科学基金会;
关键词：
adaptive optics; deformable mirror; laser ablation; parallel-gap resistance microwelding; wavefront control; ADAPTIVE OPTICS; COMPENSATION; LIGHT;
D O I：
10.3390/photonics9050321
中图分类号：
O43 [光学];
学科分类号：
070207 ; 0803 ;
摘要：
In this work, two advanced technologies were applied for manufacturing a bimorph wavefront corrector: laser ablation, to vaporize conductive silver coating from piezoceramic surface, and parallel-gap resistance microwelding, to provide a reliable electrical contact between the piezodisk surface silver electrodes and copper wires. A step-by-step guide for bimorph mirror production is presented, together with the 'bottlenecks'. Optimization of the laser ablation technique was carried out using an Nd:YAG laser with an output power of 4 W and a frequency of 20 kHz. A comparison of the ultrasonic welding and parallel-gap resistance microwelding methods was performed. The tensile strength in the first case was in the range of 0.2 ... 0.25 N for the system 'copper wire-silver coating'. The use of resistance welding made it possible to increase the value of this parameter for the same contact pair by almost two times (0.45 ... 0.5 N).
引用
收藏
页数：10
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