Title :
Carrier and radiation confinement in a DFB Multiple Quantum Well Laser
Author :
Serra, A. Cruz ; Pereira, J. Torres ; Ferreira Fernandes, C. ; Ribeiro, A. Lopes
Author_Institution :
Dept. of Electr. & Comput. Eng., Tech. Univ. Lisbon, Portugal
Abstract :
Numerical results for carrier and radiation confinement in a Distributed Feedback (DFB) Multiple Quantum Well Laser (MQW) are presented. The energy eigenvalues for electrons and holes are calculated by solving the one dimensional time-independent Schrodinger equation and the TE confined modes are found by exploring the analogy between particle and electromagnetic wave equations. The optical gain is obtained for different injection levels by using the Fermi golden rule. Regarding the longitudinal aspects, the threshold gain is obtained as a function of the detuning by using the coupled wave theory which takes into account the parameters defining the corrugation and the cavity terminations
Keywords :
Schrodinger equation; distributed feedback lasers; laser cavity resonators; laser feedback; laser modes; laser theory; laser tuning; quantum well lasers; DFB Multiple Quantum Well Laser; Fermi golden rule; TE confined modes; carrier confinement; cavity terminations; corrugation; coupled wave theory; detuning; distributed feedback multiple quantum well laser; electromagnetic wave equation; energy eigenvalues; injection levels; optical gain; particle equations; radiation confinement; threshold gain; time-independent Schrodinger equation; Carrier confinement; Charge carrier processes; Distributed feedback devices; Eigenvalues and eigenfunctions; Laser feedback; Laser modes; Quantum well devices; Quantum well lasers; Schrodinger equation; Tellurium;
Conference_Titel :
Electrotechnical Conference, 1994. Proceedings., 7th Mediterranean
Conference_Location :
Antalya
Print_ISBN :
0-7803-1772-6
DOI :
10.1109/MELCON.1994.381030
