Share Email Print
cover

Proceedings Paper

Surface quality of large KDP crystal fabricated by single-point diamond turning
Author(s): Jing Hou; Jianfeng Zhang; Jinlin Chen; Xiaoli Zhang; Dezhi Hu
Format Member Price Non-Member Price
PDF $14.40 $18.00
cover GOOD NEWS! Your organization subscribes to the SPIE Digital Library. You may be able to download this paper for free. Check Access

Paper Abstract

Ptassium dihydrogen phosphate (KDP) crystals are used as key components in high power density solid-state laser for Inertial Confinement Fusion. Surface quality is an important factor for KDP crystals implemented in high power lasers. At present Single Point Diamond Turning(SPDT) is the only way to get the required transmitted wavefront and damage threshold KDP. The paper introduces something about the defects of KDP crystals fabricating and analyses some reasons. Based on the analysis of the reasons, the process parameters can be adjusted to meet the critical requirements of high energy density application. A piece of 320X320 mm2 KDP is acquired. The roughness of the 320X320 mm2 crystal surface was already to reach an rms about 5 nm. Data were measured by an interferometric microscope. The wavefront p-v is lower than 0.5λ(λ=632nm).

Paper Details

Date Published: 9 June 2006
PDF: 3 pages
Proc. SPIE 6149, 2nd International Symposium on Advanced Optical Manufacturing and Testing Technologies: Advanced Optical Manufacturing Technologies, 61492M (9 June 2006); doi: 10.1117/12.674288
Show Author Affiliations
Jing Hou, Research Ctr. of Laser Fusion (China)
Jianfeng Zhang, Research Ctr. of Laser Fusion (China)
Jinlin Chen, Research Ctr. of Laser Fusion (China)
Xiaoli Zhang, Research Ctr. of Laser Fusion (China)
Dezhi Hu, Research Ctr. of Laser Fusion (China)


Published in SPIE Proceedings Vol. 6149:
2nd International Symposium on Advanced Optical Manufacturing and Testing Technologies: Advanced Optical Manufacturing Technologies
Li Yang; Shangming Wen; Yaolong Chen; Ernst-Bernhard Kley, Editor(s)

© SPIE. Terms of Use
Back to Top