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Operating characteristics of a semiconducting polymer laser pumped by a microchip laser.

Authors :
Turnbull, G. A.
Andrew, P.
Barnes, W. L.
Samuel, I. D. W.
Source :
Applied Physics Letters. 1/20/2003, Vol. 82 Issue 3, p313. 3p. 2 Diagrams, 3 Graphs.
Publication Year :
2003

Abstract

We report the demonstration of a compact, all-solid-state polymer laser system featuring a microchip laser as the pump source. The laser was configured as a surface-emitting, two-dimensional distributed feedback laser, based on the conjugated polymer poly(2-methoxy-5-(2′-ethylhexyloxy)-1,4-phenylene vinylene). Pulsed, band-edge lasing was observed at 636 nm above a threshold pump energy of 4 nJ. The laser exhibited an energy slope efficiency of 6.8%, with a maximum output energy of 1.12 nJ at a pump energy of 20.4 nJ. The output beam had an azimuthally polarized annular profile with a beam quality factor (M[SUP2]) of 2.2, close to the theoretical value of the lowest-order Laguerre-Gaussian and Bessel-Gaussian annular modes. We explain the origin of the azimuthal polarization as due to a coherent combination of the resonant fields supported by the two gratings. [ABSTRACT FROM AUTHOR]

Subjects

Subjects :
*SEMICONDUCTORS
*POLYMERS
*LASERS

Details

Language :
English
ISSN :
00036951
Volume :
82
Issue :
3
Database :
Academic Search Index
Journal :
Applied Physics Letters
Publication Type :
Academic Journal
Accession number :
8926093
Full Text :
https://doi.org/10.1063/1.1536249