Share Email Print

Proceedings Paper

Beam quality in unstable optical resonators and the effects of misalignment
Author(s): M. H. Mahdieh; M. Shirmahi; M. Alavi-Nejad
Format Member Price Non-Member Price
PDF $14.40 $18.00
cover GOOD NEWS! Your organization subscribes to the SPIE Digital Library. You may be able to download this paper for free. Check Access

Paper Abstract

In this paper, we have calculated the beam quality of practical unstable resonators under a variety of practical conditions. The effects of resonator geometrical parameters and misalignment were evaluated. Based on the Fresnel-Kirchhoff integral, the two-dimension phase and intensity have been calculated for practical positive branch unstable resonators. Using Second Order Moment (SOM) technique, Μ2 factor for such resonator was estimated. The results show that the beam quality is very sensitive to misalignment of the resonator. We also show that Μ2 factor increases with Fresnell number, while it decreases with magnification.

Paper Details

Date Published: 9 December 2005
PDF: 8 pages
Proc. SPIE 6157, Workshop on Laser Applications in Europe, 61570X (9 December 2005); doi: 10.1117/12.651211
Show Author Affiliations
M. H. Mahdieh, Iran Univ. of Science and Technology (Iran)
M. Shirmahi, Iran Univ. of Science and Technology (Iran)
M. Alavi-Nejad, Iran Univ. of Science and Technology (Iran)

Published in SPIE Proceedings Vol. 6157:
Workshop on Laser Applications in Europe
Wolfgang Gries; Thomas P. Pearsall, Editor(s)

© SPIE. Terms of Use
Back to Top