Abstract
The effects of an intracavity spatial filter in a half-symmetric unstable bare cavity resonator have been studied using iterative propagation techniques to obtain pure l-mode resonator solutions. The results indicate that the mode-loss difference is highest when the spatial-filter radius is at the first or third dark ring of the Airy pattern at the spatial filter. Furthermore, the results are not directly dependent on the resonator-equivalent Fresnel number. Also presented are results indicating that aspherizing the feedback mirror can be done in such a way as to increase mode discrimination.
© 1979 Optical Society of America
Full Article | PDF ArticleMore Like This
M. M. Weiner
Appl. Opt. 18(11) 1828-1834 (1979)
P. B. Corkum and H. A. Baldis
Appl. Opt. 18(9) 1346-1349 (1979)
S. H. Cho, S. Y. Shin, and L. B. Felsen
J. Opt. Soc. Am. 69(4) 563-574 (1979)