Abstract
We investigate experimentally the polarization dynamics of vertical-cavity surface-emitting lasers with isotropic optical feedback operating in the long-cavity regime. By means of an analysis of the correlation properties in the time domain and in the frequency domain a connection between a drift phenomenon and frequency components that deviate from the harmonics of the external cavity round-trip frequency is revealed. The latter frequency components are shown to result from an interaction of external cavity dynamics and relaxation oscillations. An analogy to the carrier-envelope effect in mode-locked lasers is drawn. Similar drift phenomena are observed also for other laser systems with delay.
| Original language | English |
|---|---|
| Pages (from-to) | 2707-2715 |
| Number of pages | 8 |
| Journal | Optics Express |
| Volume | 13 |
| Issue number | 7 |
| Publication status | Published - 4 Apr 2005 |
Keywords
- lasers
- laser optics
- diode lasers
- mode-locked lasers
- semiconductor lasers
- instabilities and chaos