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- W2074460215 abstract "ABSTRACT A microscopic approach to semiconductor injection laser dynamics is discussed investi gate the amplitude modulation with a small current signal in semiconductor lasers. An ex pression for the resonance frequency-vr is obtained as a function of microscopic parameters which characterize the laser system. This expression can be compared with the one derived from a standard rate equations approach, showing the existence of an additional factor. This factor leads to the prediction of a larger resonance frequency and consequently to a better agreement with the experimental data.We investigate the problem of amplitude modulation with small current signal in semicon ductor lasers deriving an expression for the resonance frequency as a function of micro scopic parameters which characterize the laser system and as a function of injected current.This approach is based on the analysis of competition among fundamental micro scopic processes typical of light-matter interaction and of the loss and pumping mechanisms that are at work in a laser system.The starting point of the SLTMB model for the analysis of semiconductor laser modul ation by a small signal of current is the couple of equations describing the temporal evolution of the two variables A2 (intensity of the coherent field in the optical cavity) and D (the carrier population inversion ).These equations can be obtained from the complete set of equations which describe in a semiclassical way and in the mean field approximation, the interaction between radiation, matter and external reservoirs by adiabatically eliminating the variable of polarization (whose role can be understood, at least at a microscopic level by linking P to its charac teristic relaxaation time T. as discussed in ref. 1):" @default.
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- W2074460215 date "1989-04-05" @default.
- W2074460215 modified "2023-09-23" @default.
- W2074460215 title "A Microscopic Approach To Amplitude Modulation With Small Signal Of Current" @default.
- W2074460215 doi "https://doi.org/10.1117/12.950202" @default.
- W2074460215 hasPublicationYear "1989" @default.
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