Title :
Quasi-3D numerical analysis of asymmetries in 980nm tapered laser diodes
Author :
Sujecki, S. ; Borruel, L. ; Wykes, J. ; Moreno, P. ; Sewell, P. ; Rodriguez, D. ; Benson, T.M. ; Esquivias, I. ; Larkins, E.C.
Author_Institution :
Sch. of Electr. & Electron. Eng., Nottingham Univ., UK
Abstract :
An advanced steady state semiconductor laser model is used to analyse the characteristics of high power laser diodes used for pumping erbium doped amplifiers. The laser model solves the bipolar current continuity equations in the bulk and quantum well regions, the thermal conduction equation and the optical wave equation in the travelling wave approximation using the 2D wide-angle beam propagation method. In this paper, we demonstrate that a small beam spoiler offset or mirror tilt results in a significant asymmetry of the near field patterns.
Keywords :
erbium; heat conduction; light propagation; optical pumping; quantum well lasers; 2D wide-angle beam propagation method; asymmetries; beam spoiler offset; bipolar current continuity equations; bulk region; erbium doped amplifiers; high power laser diodes; mirror tilt; near field patterns; optical wave equation; pumping; quantum well region; quasi-3D numerical analysis; steady state semiconductor laser model; tapered laser diodes; thermal conduction equation; travelling wave approximation; Diode lasers; Equations; Laser beams; Laser modes; Numerical analysis; Pump lasers; Quantum well lasers; Semiconductor lasers; Semiconductor optical amplifiers; Steady-state;
Conference_Titel :
Transparent Optical Networks, 2004. Proceedings of 2004 6th International Conference on
Print_ISBN :
0-7803-8343-5
DOI :
10.1109/ICTON.2004.1362028
