Laser-beam centering by the opaque wire method

Rufino Diaz-Uribe; Roberto Ortega-Martinez

doi:10.1117/12.231020

5 February 1996 Laser-beam centering by the opaque wire method

Rufino Diaz-Uribe, Roberto Ortega-Martinez

Proceedings Volume 2730, Second Iberoamerican Meeting on Optics; (1996) https://doi.org/10.1117/12.231020
Event: Second Iberoamerican Meeting on Optics, 1995, Guanajuato, Mexico

Abstract

A simple method for centering a Gaussian laser beam is proposed. It consists of partially blocking out the beam by an opaque wire; when the power of the transmitted beam is brought to a minimum, by moving the relative position of the beam and the wire, the center of the beam and that of the wire are in coincidence. By using the usual formulae for Gaussian beams, the behavior of the power variations with the relative wire-beam position, as a function of the width of the wire are analyzed. The error of the method is also analyzed and it is shown that the optimum case is when the wire diameter equals (root)2 the beam radius. We show some experimental results.

Citation Download Citation

Rufino Diaz-Uribe and Roberto Ortega-Martinez "Laser-beam centering by the opaque wire method", Proc. SPIE 2730, Second Iberoamerican Meeting on Optics, (5 February 1996); https://doi.org/10.1117/12.231020

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