Abstract
Results of a detailed linewidth theory for DFB lasers are presented. We show that fluctuations in the longitudinal distributions of photon and carrier densities can have a significant effect on the linewidth. A new type of linewidth rebroadening is identified, which is attributed to modal instability. This may explain the rebroadening observed in cases with high sidemode suppression.
Original language | English |
---|---|
Journal | Electronics Letters |
Volume | 28 |
Issue number | 5 |
Pages (from-to) | 444-446 |
Number of pages | 3 |
ISSN | 0013-5194 |
DOIs | |
Publication status | Published - Feb 1992 |
Externally published | Yes |
Keywords
- Lasers
- Stability