Online laser beam characterization by means of diffractive optical correlation filters

Michael Rudolf Duparre; Carsten Rockstuhl

doi:10.1117/12.451638

24 October 2002 Online laser beam characterization by means of diffractive optical correlation filters

Michael Rudolf Duparre, Carsten Rockstuhl

Proceedings Volume 4770, Laser Beam Shaping III; (2002) https://doi.org/10.1117/12.451638
Event: International Symposium on Optical Science and Technology, 2002, Seattle, WA, United States

Abstract

Analyzing the transversal modal content of a laser beam is a promising tool to evaluate the quality of a beam and to understand its propagation behavior. Whereas a complete description of the beam by superposition of its transversal modal components usually requires knowledge about strength and relative phase delay of the individual modes, for certain important applications information about relative strength of individual modes is sufficient to evaluate beam quality. The present work discusses in detail an approach to designate the strength of few pre-selected modes contained in a given laser beam by applying computer generated amplitude holograms as correlation filters. Quality of different coding methods for the complex transmission function of the filters is compared, and experimental results obtained from various optical set-ups are presented.

Citation Download Citation

Michael Rudolf Duparre and Carsten Rockstuhl "Online laser beam characterization by means of diffractive optical correlation filters", Proc. SPIE 4770, Laser Beam Shaping III, (24 October 2002); https://doi.org/10.1117/12.451638

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