Abstract

Using an rf-excited strip-line CO2 laser with large lateral dimensions (a high Fresnel number) in a hemiconfocal optical cavity configuration, we observe modes that are distinctively off axial. They can be viewed as folded Gaussian beams with trajectories in the shapes of the letters M and W. Either of these modes can be isolated by suppressing the other mode through the introduction of a suitably positioned obstacle into the cavity. Computer simulations of the radiation propagation in the cavity yielded field distributions conforming to the observed pattern.

© 1989 Optical Society of America

Full Article  |  PDF Article
OSA Recommended Articles
Bessel–Gauss resonator with spherical output mirror: geometrical- and wave-optics analysis

Julio C. Gutiérrez-Vega, Rodolfo Rodrı́guez-Masegosa, and Sabino Chávez-Cerda
J. Opt. Soc. Am. A 20(11) 2113-2122 (2003)

Theory of the unstable Bessel resonator

Raúl I. Hernández-Aranda, Sabino Chávez-Cerda, and Julio C. Gutiérrez-Vega
J. Opt. Soc. Am. A 22(9) 1909-1917 (2005)

References

You do not have subscription access to this journal. Citation lists with outbound citation links are available to subscribers only. You may subscribe either as an OSA member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access OSA Member Subscription

Cited By

You do not have subscription access to this journal. Cited by links are available to subscribers only. You may subscribe either as an OSA member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access OSA Member Subscription

Figures (5)

You do not have subscription access to this journal. Figure files are available to subscribers only. You may subscribe either as an OSA member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access OSA Member Subscription

Metrics

You do not have subscription access to this journal. Article level metrics are available to subscribers only. You may subscribe either as an OSA member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access OSA Member Subscription