Damage behavior of Nd:glass of high-power disk amplifier medium in ICF Facility

Shaobo He; Lin Chen; Xiaodong Yuan; Yuanbin Chen; Xiaofeng Cheng; Xudong Xie; Wenyi Wang; Xiaotao Zu

doi:10.1117/12.2248134

6 December 2016 Damage behavior of Nd:glass of high-power disk amplifier medium in ICF Facility

Shaobo He, Lin Chen, Xiaodong Yuan, Yuanbin Chen, Xiaofeng Cheng, Xudong Xie, Wenyi Wang, Xiaotao Zu

Proceedings Volume 10014, Laser-Induced Damage in Optical Materials 2016; 100141H (2016) https://doi.org/10.1117/12.2248134
Event: SPIE Laser Damage, 2016, Boulder, Colorado, United States

Abstract

Large aperture Nd:glass disk is often used as the amplifier medium in the inertial confinement fusion (ICF) facilities. The typical size of Nd:glass is up to 810mm×460mm×40mm and more than 3,000 Nd:glass components are needed in the ICF facility. At present, the 3ω fused silica glass and DKDP crystal are mainly responsible for the damage of driver used for ICF. However, with the enlargement of the facility and increase of laser shot number, the laser damage of Nd:glass at 1ω waveband is still an important problem to limit the stable operation of facility and improvement of laser beam quality. In this work, the influence of Nd:glass material itself, mechanical processing, service environment, and laser beam quality on its damage behavior is investigated experimentally and theoretically. The results and conclusions can be summarized as follows: (1) It is very important to control the concentration of platinum impurity particles during melting and the sputtering effect of the cladding materials. (2) The number and length of fractural and brittle scratches should be strictly suppressed during mechanical processing of Nd:glass. (3) The B-integral of high power laser beam should be rigorously controlled. Particularly, the top shape of pulses must be well controlled when operating at high peak laser power. (4) The service environment should be well managed to make sure the cleanness of the surface of Nd:glass better than 100/A level during mounting and running. (5) The service environment and beam quality should be monitored during operation.

Citation Download Citation

Shaobo He, Lin Chen, Xiaodong Yuan, Yuanbin Chen, Xiaofeng Cheng, Xudong Xie, Wenyi Wang, and Xiaotao Zu "Damage behavior of Nd:glass of high-power disk amplifier medium in ICF Facility", Proc. SPIE 10014, Laser-Induced Damage in Optical Materials 2016, 100141H (6 December 2016); https://doi.org/10.1117/12.2248134

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
6 PAGES

DOWNLOAD PAPER SAVE TO MY LIBRARY

GET CITATION

RIGHTS & PERMISSIONS

Get copyright permission Get copyright permission on Copyright Marketplace

KEYWORDS

Platinum

High power lasers

Laser induced damage

Laser glasses

Optical amplifiers

Glasses

Amplifiers

Show All Keywords

Keywords/Phrases

Search In:

Publication Years