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Article
Point model for describing the polarization parameters of a single-mode semiconductor laser
Results obtained for a one-dimensional model of a single-mode laser and a model with parameters averaged over the resonator volume (point model) were compared. The results for both models agreed only for a hig...
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Article
Optimization of Yb-Er microchip laser parameters
Output parameters of microchip lasers based on Yb:Er co-doped phosphate glasses have been numerically calculated using a simplified 4-level model in order to optimize the Yb and Er concentrations and active me...
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Article
Effect of diffusion and fluctuations in the nonequilibrium charge carrier density on the angular distribution of the output intensity for injection lasers based on an InAsSb/InAsSbP heterostructure
We have used numerical modeling to study the effect of diffusion and fluctuations in the nonequilibrium carrier density in the active layer of injection lasers based on an InAsSb/InAsSbP heterostructure on the...
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Article
Dynamics of polarization switching in single-mode injection semiconductor lasers
Various dynamic effects during polarization switching in single-mode semiconductor lasers are examined on the basis of a previously developed approach. This model is found to provide a good description of a wi...
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Article
Polarization switching in single-mode injection semiconductor laser
Based on a previously developed polarization component method, a phenomenological model is constructed for the generation of polarized radiation in single-mode semiconductor lasers and applied to polarization ...
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Article
Calculation of spatial intensity distribution of InAsSb/InAsSbP laser diode emission
The spatial distribution of emission intensity in the active layer of a laser diode (LD) based on an InAsSb/InAsSbP heterostructure (generation wavelength λgen ∼ 3.3 µm) is obtained for various stripe widths w by...
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Article
Bleaching effect in passive regions of powerful 1.02 μm InGaAs/AlGaAs DQW laser diodes with ridged waveguide structure
It has been shown that the cavity trapped amplified luminescence (CTAL) flux formed within the active region of a powerful 1.02 μm InGaAs/AlGaAs DQW laser diode (LD) with a ridged waveguide structure, can caus...
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Article
Optical parameters of diode lasers based on an InAsSb/InAsSbP heterostructure
The rates of radiative recombination (including transitions induced by enhanced luminescence) and nonradiative recombination, internal quantum yield of luminescence, and the matrix element for band-to-band opt...
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Article
Interband transition matrix element and temperature dependence of the lasing threshold for GaN laser structures
By comparing experimental and theoretical radiative recombination spectra, we have determined the values of the square of the matrix element for interband optical transitions |M|2 in epitaxial GaN at different te...
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Article
Polarization component method for calculation of the multiple-frequency lasing regime
We have shown that the polarization component method can be extended to the case of broadband emission (multiple-frequency approximation) if we make the approximation of slowly varying amplitudes and statistic...
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Article
Open AccessLaser spectroscopy of optical centers in borosilicophosphate glass, coactivated by erbium and ytterbium ions
Based on analysis of the laser emission spectra of borosilicophosphate glass, coactivated by Er3+ and Yb3+ ions, we have determined the structure of the Stark splitting of the luminescence band for the erbium ion...
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Article
Intracavity parametric conversion of radiation from a pulsed Nd:YVO4 laser with high-power diode pum**
We have achieved intracavity parametric conversion of the radiation from a laser based on Nd:YVO4 with high-power diode pum**. An LiF2- crystal was used as the passive Q-switch for the Nd:YVO4 laser. We have sh...
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Article
Phase Correlations and Polarization Characteristics of Dye-Solution Laser Radiation
The influence of phase correlations of components on the energy and polarization parameters of output radiation have been calculated within the framework of the formalism of polarization components. It is show...
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Article
Radiation Polarization Distribution Function of a Dye Laser
The Fokker–Planck equation for the distribution function of the intensity of an individual component has been solved in the approximation of the Ornstein–Uhlenbeck process within the framework of the formalism...
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Article
Polarization Kinetics of the Fluorescence of Solutions of Complex Molecules Undergoing Impulse Optical Quenching
The influence of optical quenching on the polarization of the integral (in time) fluorescence of solutions of complex molecules using picosecond pulses has been investigated theoretically. The resulting depend...
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Article
Amplified luminescence and threshold current temperature dependencies of ZnSe and GaN laser diodes
Using a transfer equation approach, it is shown that the cavity-trapped amplified luminescence (AL) flux densities S integrated over the frequency and cavity length at the threshold of ZnSe, zinc-blende and wu...
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Article
Statistical Properties of the Polarized Radiation of a Dye–Solution Laser
Within the framework of the method of polarization components we obtained the Fokker–Planck equation for the intensity–distribution function of an individual component. Solutions for the Ornstein–Uhlenbeck pro...
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Article
Generalized method of description of the process of polarized radiation generation in dye lasers
The possibility of employment of the method of polarization components for description of the process of polarized radiation generation in nonlinear media has been theoretically substantiated. On the assumptio...
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Article
Formation of a complex nonlinear response in bichromophore solutions
A theoretical investigation of the dynamics of the stimulated emission of solutions of bichoromophores consisting of a donor with a high intersystem crossing probability and an acceptor between which a radiati...
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Article
Polarization effect of pum** radiation on lasing characteristics of a dye-solution laser