Fractional power in the bucket, beam quality and M2

Santanu Basu; Lee M. Gutheinz

doi:10.1117/12.846382

3 March 2010 Fractional power in the bucket, beam quality and M²

Santanu Basu, Lee M. Gutheinz

Proceedings Volume 7579, Laser Resonators and Beam Control XII; 75790U (2010) https://doi.org/10.1117/12.846382
Event: SPIE LASE, 2010, San Francisco, California, United States

Abstract

This paper gives expressions to calculate the fraction of power, fPIB, from a given multimode gaussian laser beam that can be deposited within a bucket of radius, r_T, on a target at a range, z_T, using a focusing optic of diameter, D_f. We relate the power in the bucket, fPIB, to the M² parameter, both of which can be experimentally measured. In this paper, we have also presented relationships between these two parameters and BQ and Strehl, which have not been unambiguously defined for a multimode laser beam in the literature. We propose f_PIB and M² to be used as standard design parameters instead of BQ and Strehl for laser-target interaction tests with multimode laser beams from stable resonators.

Citation Download Citation

Santanu Basu and Lee M. Gutheinz "Fractional power in the bucket, beam quality and M²", Proc. SPIE 7579, Laser Resonators and Beam Control XII, 75790U (3 March 2010); https://doi.org/10.1117/12.846382

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