Focusing non-truncated elliptical Gaussian beams
Abstract
Very simple expressions are obtained for the focal shift of focused Gaussians beams with an elliptical cross section, like that produced by junction lasers. The beam is focused by a conventional circular thin lens with a radius which is much larger than the spot size of the beam.
- Publication:
-
Optics Communications
- Pub Date:
- November 1988
- DOI:
- 10.1016/0030-4018(88)90224-6
- Bibcode:
- 1988OptCo..68..317L
- Keywords:
-
- Focusing;
- Laser Beams;
- Ellipticity;
- Fresnel Lenses;
- Huygens Principle;
- Lasers and Masers