Dynamic behavior of a double-tapered-waveguide (DTWG) distributed feedback (DFB) semiconductor laser is analyzed theoretically. It is found that the relaxation oscillation frequency can be enhanced by the DTWG structure especially for DFB lasers with large coupling-length product.
- Distributed feedback lasers
- Double-tapered waveguide
- Semiconductor lasers
ASJC Scopus subject areas
- Atomic and Molecular Physics, and Optics
- Condensed Matter Physics
- Electrical and Electronic Engineering