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Amplitude squeezing with a Fabry Perot laser in presence of gain supression: existence of optimum biasing conditions

For a few years, amplitude squeezing with semiconductor lasers has attracted the attention of the scientific community. Several models have been developed based on a quantum mechanical approach or semiclassical one. A new model based on a semiclassical analysis using a Green's function analysis has been developed. This model enables to take into account structural dependences like spatial hole burning and other phenomena as nonlinear gain. This model permits the prediction of the internal amplitude and phase noise of a DFB structure and also the external amplitude and phase noise of such a structure, taking into account the influence of the vacuum fluctuations at the laser facets.