Abstract
We investigate the use of PbS quantum-dot-doped glasses as saturable absorbers for ultrashort-pulse lasers by means of absorption bleaching experiments and numerical analysis of the pulse shaping process using the Haus' master equation. We explain the mode-locking mechanism and the limitations of these absorbers. The generation of transform-limited fs pulses is predicted by soliton mode locking initiated by the absorption saturation of higher excited states of the quantum-dot saturable absorber.
| Original language | English (US) |
|---|---|
| Pages (from-to) | 10-12 |
| Number of pages | 3 |
| Journal | Applied Physics Letters |
| Volume | 76 |
| Issue number | 1 |
| DOIs | |
| State | Published - Jan 3 2000 |
ASJC Scopus subject areas
- Physics and Astronomy (miscellaneous)