A method to determine the above-threshold stability of distributed feedback semiconductor laser diodes
Abstract
An analysis of the above-threshold stability of distributed feedback (DFB) semiconductor laser diodes (LD's) is presented. It is based on a numerical model which takes into account effects of spatial hole burning (SHB) and the nonlinear gain coefficient. In the analysis, the Newton-Raphson (NR) technique has not been used, and no functional derivative is required. Taking into account the presence of another nonlasing mode, the single-mode stability of the DFB laser diodes is determined. The proposed model does not depend on any particular DFB structure, and hence can be applied to various DFB LD structures. Numerical results are presented for a three-phase-shift (3PS) DFB LD.
- Publication:
-
Journal of Lightwave Technology
- Pub Date:
- April 1995
- DOI:
- 10.1109/50.372466
- Bibcode:
- 1995JLwT...13..563L
- Keywords:
-
- Distributed Feedback Lasers;
- Hole Burning;
- Mathematical Models;
- Newton-Raphson Method;
- Nonlinear Optics;
- Semiconductor Diodes;
- Semiconductor Lasers;
- Electric Fields;
- Laser Modes;
- Laser Stability;
- Numerical Analysis;
- Phase Shift;
- Lasers and Masers