Abstract
We measured the higher-order modes of a diffractive-optic graded-phase resonator by suppressing the lower-order modes of a flash-lamp-pumped Nd:YAG laser with spatial filters. A diffractive-optic end mirror was used to establish a flattop fundamental mode. Measurements of the fundamental and higher-order mode shapes agreed with theoretical models. Quantitative measurements of modal discrimination substantiate the predictions of large discrimination between the fundamental and second-order modes.
| Original language | English (US) |
|---|---|
| Pages (from-to) | 663-665 |
| Number of pages | 3 |
| Journal | Optics Letters |
| Volume | 20 |
| Issue number | 7 |
| DOIs | |
| State | Published - Apr 1995 |