Abstract
We use the highly sensitive method of spatially coherent white-light interferometry to measure the geometric group-delay dispersion in graded-index media. Our measurements confirm previous analyses that the geometric dispersion produced by off-axis beam propagation is anomalous 1negative2, hence may be used to eliminate the ubiquitous positive dispersion in optical systems. Fabrication of large index-gradient waveguides optimal for dispersion compensation is discussed.
| Original language | English |
|---|---|
| Pages (from-to) | 2610-2613 |
| Number of pages | 4 |
| Journal | Applied Optics |
| Volume | 35 |
| Issue number | 15 |
| DOIs | |
| State | Published - 20 May 1996 |