Estimation of focused laser beam SBS (stimulated Brillouin scatter) threshold dependence on beam shape and phase aberrations

Charles W. Clendening

doi:10.1117/12.43679

1 May 1991 Estimation of focused laser beam SBS (stimulated Brillouin scatter) threshold dependence on beam shape and phase aberrations

Charles W. Clendening

Author Affiliations +

Proceedings Volume 1415, Modeling and Simulation of Laser Systems II; (1991) https://doi.org/10.1117/12.43679
Event: Optics, Electro-Optics, and Laser Applications in Science and Engineering, 1991, Los Angeles, CA, United States

Abstract

In many applications it is desirable to be able to accurately predict the SBS threshold of a given laser beam. Existing physical optics computer codes which solve the problem iteratively and include pump depletion do this routinely for one dimensional cases. However, if a high spatial resolution or a large number of cases are required this approach becomes intractable for two dimensional calculations. As an alternative approach threshold scaling can be estimated with reasonable accuracy by ignoring pump depletion and integrating the intensity weighted average gain along the propagation path. This technique has been applied to several cases of interest. For one dimensional aberrations the results compare favorably with more comprehensive BRIWON code predictions and with experimental data. The effects of both beam shape and two dimensional segmented mirror aberrations have also been evaluated. The results are in reasonable agreement with experimental data. General implications for other classes of aberration have also been assessed and are reported.

Citation Download Citation

Charles W. Clendening "Estimation of focused laser beam SBS (stimulated Brillouin scatter) threshold dependence on beam shape and phase aberrations", Proc. SPIE 1415, Modeling and Simulation of Laser Systems II, (1 May 1991); https://doi.org/10.1117/12.43679

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