Journal ArticleDOI
Dispersion of the Linewidth Enhancement Factor in Semiconductor Injection Lasers
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In this article, the dispersion of the linewidth enhancement factor α in an AlGaAs injection laser has been determined from the changes in spontaneous emission spectra as bias current is varied below threshold.Abstract:
The dispersion of the linewidth enhancement factor α in an AlGaAs injection laser has been determined from the changes in spontaneous emission spectra as bias current is varied below threshold. It is demonstrated that the results are in good agreement with a simple model which takes account of the gain spectra and the associated anomalous dispersion of the refractive index in parabolic bands.read more
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Journal ArticleDOI
Linewidth broadening factor in semiconductor lasers--An overview
Marek Osinski,J. Buus +1 more
TL;DR: In this article, the authors present an overview of topics related to one of the fundamental parameters for semiconductor lasers-the linewidth broadening factor α that describes the coupling between carrier-concentration-induced variations of real and imaginary parts of susceptibility.
Journal ArticleDOI
The diode laser in atomic physics
TL;DR: A brief introduction to the AlGaAs single-mode diode laser's characteristics and operation is presented, along with an overview of this laser's contributions to atomic physics research to date as discussed by the authors.
Journal ArticleDOI
Longitudinal Mode Competition and Asymmetric Gain Saturation in Semiconductor Injection Lasers. II. Theory
Nagaatsu Ogasawara,Ryoichi Ito +1 more
TL;DR: In this article, a density matrix formalism is used to analyze the nonlinear gain saturation in semiconductor laser systems, and it is shown that the non-linear gain has a component which is asymmetric with respect to the lasing frequency, which originates from refractive-index modulation due to a carrier density pulsation induced by the optical intensity beat.
Journal ArticleDOI
Gain and saturation in semiconductor lasers
Jian Huang,Lee W. Casperson +1 more
TL;DR: In this article, a review of the gain and saturation behavior of semiconductor lasers is presented, with special attention given to rate equation models and to the possibility of so-called gain nonlinearities that might affect the CW and modulation performance.
Journal ArticleDOI
High-speed picosecond optical pulse compression from gain-switched 1.3-µm distributed feedback-laser diode (DFB-LD) through highly dispersive single-mode fiber
TL;DR: In this paper, the authors studied the compression characteristics of chirped pulses from gain-switched distributed feedback-laser diodes (DFB-LD) transmitting through highly dispersive media and clarified theoretically that the optimum dispersion value to obtain a minimum compressed pulse is proportional to the square of original pulsewidth.