Radiative characteristics of a two-section laser structure based on a δ-doping superlattice

Autor:	Dmitrii V. Ushakov, Ivan S. Manak, V. K. Kononenko
Rok vydání:	2003
Předmět:	Physics Superlattice Physics::Optics Electron Laser Atomic and Molecular Physics and Optics Spectral line Electronic Optical and Magnetic Materials law.invention Wavelength law Radiative transfer Atomic physics Lasing threshold Excitation
Zdroj:	Optics and Spectroscopy. 94:469-475
ISSN:	1562-6911 0030-400X
DOI:	10.1134/1.1563696
Popis:	Spectral characteristics of a two-section laser structure with δ-doping active regions are studied theoretically. The wide range of tuning of the lasing wavelength is primarily related to specific characteristics of the gain spectra of n-i-p-i crystals: the dependence of the effective band-gap width of the superlattice on the level of excitation, the character of variation of the overlap integrals of the electron and hole wave functions, and broadening of the electronic spectra due to fluctuations of the electrostatic potential. Depending on the pumping currents in sections of the laser structure, the lasing wavelength can be tuned over a wide spectral range of the IR region in regimes of cw lasing, the transient regime, and the regime of regular pulsations. In the regime of self-sustaining pulsations, lasing is also possible at two wavelengths spaced well apart.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::d6362606425217dd2461aa50f71ba84e https://doi.org/10.1134/1.1563696 Zobrazit plný text záznamu Plný text ve formátu PDF