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Proceedings Paper

Lasing characteristics of tunable four-section distributed-Bragg reflector lasers
Author(s): Mario F. S. Ferreira; Jose Ferreira da Rocha; Joao Lemos Pinto
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Paper Abstract

A theoretical model is presented to describe the spectral and modulation characteristics of tunable DBR lasers with two active and two passive sections, by taking into account the actual frequency dependence of the Bragg reflector, the nonlinear gain compression effect, the possibility of laser operation away from gain maximum, and the distribution of the spontaneous emission along the laser cavity. General expressions are derived for the intensity and frequency modulation response, frequency noise spectrum, spectral linewidth, effective linewidth enhancement factor, and spontaneous emission rate. The dependence of the linewidth and of the FM efficiency on the nonuniform injection currents to the active sections and on the tuning currents to the passive sections is particularly investigated.

Paper Details

Date Published: 2 May 1994
PDF: 12 pages
Proc. SPIE 2150, Design, Simulation, and Fabrication of Optoelectronic Devices and Circuits, (2 May 1994); doi: 10.1117/12.174979
Show Author Affiliations
Mario F. S. Ferreira, Univ. de Aveiro (Portugal)
Jose Ferreira da Rocha, Univ. de Aveiro (Portugal)
Joao Lemos Pinto, Univ. de Aveiro (Portugal)

Published in SPIE Proceedings Vol. 2150:
Design, Simulation, and Fabrication of Optoelectronic Devices and Circuits
Mario Nicola Armenise, Editor(s)

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