Abstract
The fabrication of fiber Bragg gratings by the fourth harmonic of a Nd:YAG laser was described. This is the first report of writing with this kind of ultraviolet light source. The spatial and temporal coherence of laser beam is improved by applying a F-P etalon and a diaphragm of small aperture. The fiber was placed in an interferometer and exposed for 60 minutes. As a result, about 3% reflection was observed at 1505 nm.
| Original language | English |
|---|---|
| Pages (from-to) | 457-460 |
| Number of pages | 4 |
| Journal | Zhongguo Jiguang/Chinese Journal of Lasers |
| Volume | 23 |
| Issue number | 5 |
| Publication status | Published - May 1996 |
| Externally published | Yes |