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Microwave small‐signal equivalent circuit model for multielectrode lasers
Author(s) -
Elkadi H.,
Hamelin R.,
Vilcot J. P.,
Decoster D.
Publication year - 1994
Publication title -
microwave and optical technology letters
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.304
H-Index - 76
eISSN - 1098-2760
pISSN - 0895-2477
DOI - 10.1002/mop.4650071715
Subject(s) - equivalent circuit , microwave , spice , laser , bandwidth (computing) , large signal model , signal (programming language) , electronic engineering , amplitude , optoelectronics , physics , materials science , power (physics) , optics , computer science , electrical engineering , engineering , telecommunications , voltage , quantum mechanics , programming language
A small‐signal equivalent circuit model of the multielectrode lasers with saturable absorbers based on a modified formulation of the rate equations is presented. The Auger recombinations are taken into consideration because they largely modify the carrier lifetime at the high carrier densities that occur in such structures. An analysis of the bistability of the power‐current characteristic is presented. The model predicts an extremely high resonance amplitude as well as a very large bandwidth up to the millimetric range, which can be very interesting for microwave optical links. The results obtained using this model are comparable to those obtained using a large‐signal equivalent circuit model implanted on SPICE, the results of which are published elsewhere. The equivalent circuit obtained is a tool suitable for the study of the behavior of the multielectrode laser within a microwave optical system. © 1994 John Wiley & Sons, Inc.