Title :
Stability in single longitudinal mode operation in DFB laser structures
Author :
Fernandes, Carlos Alberto Ferreira
Author_Institution :
Dept. of Electr. & Comput. Eng., Inst. Superior Tecnico, Lisboa, Portugal
Abstract :
The spatial hole-burning effect (SHB) has been known to limit the performance of conventional DFB laser diodes to relatively low power operation. In order to ensure a stable single longitudinal mode (SLM) operation, DFB structures with modifications in the corrugation are considered. Namely, the inclusion of phase-shifts (PS) and non-uniform coupling coefficients is presented with a comparative analysis of the laser performances in the above-threshold regime.
Keywords :
distributed feedback lasers; laser modes; semiconductor lasers; DFB laser diodes; DFB laser structures; above-threshold regime; comparative analysis; laser performances; low power operation; modified corrugation; nonuniform coupling coefficients; phase shifts; spatial hole-burning effect; stable single longitudinal mode operation; Bit rate; Diode lasers; Gratings; Laser modes; Laser stability; Optical coupling; Performance analysis; Power lasers; Reflectivity; Threshold current;
Conference_Titel :
Electrotechnical Conference, 2004. MELECON 2004. Proceedings of the 12th IEEE Mediterranean
Print_ISBN :
0-7803-8271-4
DOI :
10.1109/MELCON.2004.1346756
