Abstract
We present a theoretical analysis and experimental demonstration of a new method for spectral narrowing of laser radiation. The bandwidth narrowing is experienced by a laser beam subjected to a photorefractive two-beam coupling process. Contrary to the conventional method of frequency filtering by a Fabry-Perot étalon, this technique has no intrinsic finesse limitation on its resolution. A factor of 2 in frequency bandwidth narrowing is achieved with an argon-ion laser.
| Original language | English |
|---|---|
| Pages (from-to) | 481-483 |
| Number of pages | 3 |
| Journal | Optics Letters |
| Volume | 17 |
| Issue number | 7 |
| DOIs | |
| State | Published - Apr 1992 |
| Externally published | Yes |