Laser with a dynamic distributed feedback utilizing polymer active elements

Laser with a dynamic distributed feedback utilizing polymer active elements

Stimulated emission from a bulk laser with a distributed feedback was observed and investigated for the first time using a dye-activated polymethylmethacrylate element pumped by the second harmonic of a YAG:Nd/sup 3 +/ laser. The method of dynamic diffraction gratings was used to investigate the dis...

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Veröffentlicht in:Sov. J. Quant. Electron. (Engl. Transl.); (United States) 1982-09, Vol.12 (9), p.1250-1252
Hauptverfasser: Vasil'ev, N N, Gorelenko, A Ya, Petrovich, I P, Shkadarevich, A P, Yarmolkevich, A R
Format: Artikel
Sprache:eng
Schlagworte:
420300 - Engineering- Lasers- (-1989)
DYE LASERS
ELECTROMAGNETIC RADIATION
EMISSION
ENERGY-LEVEL TRANSITIONS
ENGINEERING
ESTERS
FEEDBACK
GRATINGS
HARMONICS
LASER RADIATION
LASERS
LIQUID LASERS
MODULATION
NEODYMIUM LASERS
OPTICAL PUMPING
ORGANIC COMPOUNDS
ORGANIC POLYMERS
OSCILLATIONS
PMMA
POLYACRYLATES
POLYMERS
POLYVINYLS
POPULATION INVERSION
PUMPING
RADIATIONS
SOLID STATE LASERS
STIMULATED EMISSION
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Beschreibung
Zusammenfassung:Stimulated emission from a bulk laser with a distributed feedback was observed and investigated for the first time using a dye-activated polymethylmethacrylate element pumped by the second harmonic of a YAG:Nd/sup 3 +/ laser. The method of dynamic diffraction gratings was used to investigate the distributed feedback mechanism. It was found that the feedback was mainly due to spatial modulation of the population inversion in the active medium.
ISSN:0049-1748
2169-530X
DOI:10.1070/QE1982v012n09ABEH006023