Design of a high pressure/high thermal flux window lens of low polarization and phase distortion

James L. Reeve; Andrew G. McKay

doi:10.1117/12.140526

25 February 1993 Design of a high pressure/high thermal flux window lens of low polarization and phase distortion

James L. Reeve, Andrew G. McKay

Proceedings Volume 1739, High Heat Flux Engineering; (1993) https://doi.org/10.1117/12.140526
Event: San Diego '92, 1992, San Diego, CA, United States

Abstract

Flat transmissive material windows are often used in high power cw laser systems to separate a low pressure resonator cavity from a one atmosphere beam train. Recently a requirement was identified for a pressure cell window that would transmit intensity peaks of 31 KW/cm² for 5 seconds, react a differential pressure of 52 atm without active cooling, and focus the incident light as a lens. Budgeted optical distortion levels were 400 nm of rms wave front error and no more than 0.01% conversion of s polarization state into p state through window birefringence. The design of this window is described, including material selection, thermal and structural finite element analysis, Wiebull strength evaluation, measurement and selection of single crystal blanks with low internal stress, evaluation of phase and polarization distortion and mounting considerations.

Citation Download Citation

James L. Reeve and Andrew G. McKay "Design of a high pressure/high thermal flux window lens of low polarization and phase distortion", Proc. SPIE 1739, High Heat Flux Engineering, (25 February 1993); https://doi.org/10.1117/12.140526

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