Study on the cooling method of deformable mirror under laser irradiation

Yaoping Zhang; Zhipeng Lv; Guoyun Long; Hong Zhou; Lin Cheng

doi:10.1117/12.2603866

13 December 2021 Study on the cooling method of deformable mirror under laser irradiation

Yaoping Zhang, Zhipeng Lv, Guoyun Long, Hong Zhou, Lin Cheng

Proceedings Volume 12070, 10th International Symposium on Advanced Optical Manufacturing and Testing Technologies: Large Mirror and Telescopes; 120700J (2021) https://doi.org/10.1117/12.2603866
Event: Tenth International Symposium on Advanced Optical Manufacturing and Testing Technologies (AOMATT 2021), 2021, Chengdu, China

Abstract

The deformable mirrors are becoming more and more important in laser systems. As the laser power increases, the deformation of the thin mirror also increases under laser irradiation. In this paper, to reduce the temperature rising, several cooling methods were proposed. These methods include air knife cooling, pole heads cooling, PZTs + pole heads cooling, Cu columns implanted around PZTs cooling, and PZTs inter-infill cooling. This paper mainly calculated the cooling effect of these cooling methods on the deformable mirrors under laser irradiation. In addition, the different cooling media such as water and air was also studied. Based on the results, we found the air cooling effect is poor, and water cooling effect is obvious. The cooling effect of adding heat-conducting sheets and Cu columns is not obvious. It has a good cooling effect when adding a heat-conducting Cu block with the same honeycomb shape as PZTs on the back of the mirror, and the temperature rising can be reduced from 7.46 °C to 2.96 °C. These calculations are valuable for the application of deformable mirror cooling.

Citation Download Citation

Yaoping Zhang, Zhipeng Lv, Guoyun Long, Hong Zhou, and Lin Cheng "Study on the cooling method of deformable mirror under laser irradiation", Proc. SPIE 12070, 10th International Symposium on Advanced Optical Manufacturing and Testing Technologies: Large Mirror and Telescopes, 120700J (13 December 2021); https://doi.org/10.1117/12.2603866

ACCESS THE FULL ARTICLE

INSTITUTIONAL
Select your institution to access the SPIE Digital Library.

SELECT YOUR INSTITUTION

PERSONAL
Sign in with your SPIE account to access your personal subscriptions or to use specific features such as save to my library, sign up for alerts, save searches, etc.

PERSONAL SIGN IN

No SPIE Account? Create one

PURCHASE THIS CONTENT

SUBSCRIBE TO DIGITAL LIBRARY

50 downloads per 1-year subscription

Members: $195

Non-members: $335 ADD TO CART

25 downloads per 1 - year subscription

Members: $145

Non-members: $250 ADD TO CART

PURCHASE SINGLE ARTICLE

Includes PDF, HTML & Video, when available

Members: $17.00

Non-members: $21.00 ADD TO CART

PROCEEDINGS
9 PAGES

DOWNLOAD PAPER SAVE TO MY LIBRARY

GET CITATION

RIGHTS & PERMISSIONS

Get copyright permission Get copyright permission on Copyright Marketplace

KEYWORDS

Deformable mirrors

Ferroelectric materials

Mirrors

Copper

Laser irradiation

Head

Silicon

Show All Keywords

Keywords/Phrases

Search In:

Publication Years