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Beam shaping in spatially modulated broad-area semiconductor amplifiers |
Optics Letters, Vol. 37, Issue 24, pp. 5253-5255 (2012)
http://dx.doi.org/10.1364/OL.37.005253
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Abstract
We propose and analyze a beam-shaping mechanism that in broad-area semiconductor amplifiers occurs due to spatial pump modulation on a micrometer scale. The study, performed under realistic parameters and conditions, predicts a spatial (angular) filtering of the radiation, which leads to a substantial improvement of the spatial quality of the beam during amplification. Quantitative analysis of spatial filtering performance is presented based on numerical integration of the paraxial propagation model and on analytical estimations.
© 2012 Optical Society of America
OCIS Codes
(160.6000) Materials : Semiconductor materials
(250.5980) Optoelectronics : Semiconductor optical amplifiers
(160.4236) Materials : Nanomaterials
(230.4480) Optical devices : Optical amplifiers
ToC Category:
Optoelectronics
History
Original Manuscript: October 16, 2012
Revised Manuscript: November 28, 2012
Manuscript Accepted: November 28, 2012
Published: December 14, 2012
Citation
R. Herrero, M. Botey, M. Radziunas, and K. Staliunas, "Beam shaping in spatially modulated broad-area semiconductor amplifiers," Opt. Lett. 37, 5253-5255 (2012)
http://www.opticsinfobase.org/ol/abstract.cfm?URI=ol-37-24-5253
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