Abstract
We analyze the mode properties of a laser with a Gaussian gain profile by using the beam propagation method. The resonance properties of the Petermann K factor and the M2 beam quality are shown to be related in the vicinity of degenerate cavity geometries. K is unity for a confocal cavity, even under conditions with strong gain guiding, while M2 is a maximum.
| Original language | English (US) |
|---|---|
| Pages (from-to) | 229-231 |
| Number of pages | 3 |
| Journal | Optics letters |
| Volume | 29 |
| Issue number | 3 |
| DOIs | |
| State | Published - Feb 1 2004 |
ASJC Scopus subject areas
- Atomic and Molecular Physics, and Optics