Thermal and stress characterization of various thin disk laser configurations at room temperature

N. Vretenar; T. Carson; P. Peterson; T. Lucas; T. C. Newell; W. P. Latham

doi:10.1117/12.879231

15 February 2011 Thermal and stress characterization of various thin disk laser configurations at room temperature

N. Vretenar, T. Carson, P. Peterson, T. Lucas, T. C. Newell, W. P. Latham

Proceedings Volume 7912, Solid State Lasers XX: Technology and Devices; 79120B (2011) https://doi.org/10.1117/12.879231
Event: SPIE LASE, 2011, San Francisco, California, United States

Abstract

Operational performance of kilowatt-class thin-disk ceramic and single crystal Yb:Yag lasers is presented. High pump power is applied to various thin-disk assemblies on two different test beds. The assemblies are composed of ASE caps, 200μm gain media, and heat sinks made of SiC, sapphire, or diamond. A novel mounting and cooling process is described. FEA modeling of the assemblies is performed using COMSOL stress and thermal computations to understand and quantify thermal and stress effects on beam quality and laser output power. Under increased pump power, the thin-disk can deform 5-10 μm in the center, destroying cavity stability. This is observed experimentally. The results of this work indicate that a single thin-disk laser could simultaneously produce high beam quality and high power if novel thermal management techniques are employed.

Citation Download Citation

N. Vretenar, T. Carson, P. Peterson, T. Lucas, T. C. Newell, and W. P. Latham "Thermal and stress characterization of various thin disk laser configurations at room temperature", Proc. SPIE 7912, Solid State Lasers XX: Technology and Devices, 79120B (15 February 2011); https://doi.org/10.1117/12.879231

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