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Temporal output profile of gain-coupled distributed feedback dye laser

Pasandideh, K ; Sharif University of Technology | 2017

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  1. Type of Document: Article
  2. DOI: 10.1088/1555-6611/aa7865
  3. Publisher: Institute of Physics Publishing , 2017
  4. Abstract:
  5. The lasing mechanism and temporal output profile of distributed feedback dye lasers is investigated, using a model based on induced polarization in the dye solution, where a more accurate behavior of the laser output is predicted. It is found that the temporal output profile of the laser is mostly determined by the concentration of dye solution and the lifetime of the upper laser level of dye molecules. To a large extent, the results of this work agree with experimental studies, even at high-level pump intensities where the self Q-switched model fails to be applied. Especially, the experimentally observed irregular intensity profile of laser output is explained. It is also shown that, when pumping dye solution by narrower pulses, the single-pulse output mode can be realized in the wider range of pump intensities and the pulsewidth stability of laser can be improved. © 2017 Astro Ltd
  6. Keywords:
  7. Distributed feedback dye lasers ; Lasing mechanism ; Temporal output profile ; Dies ; Distributed feedback lasers ; Dye lasers ; Feedback ; Optical pumping ; Distributed feedback dye laser ; Induced polarization ; Intensity profiles ; Lasing mechanisms ; Model-based OPC ; Pump intensities ; Self-Q-switched ; Pumping (laser)
  8. Source: Laser Physics ; Volume 27, Issue 8 , 2017 ; 1054660X (ISSN)
  9. URL: http://iopscience.iop.org/article/10.1088/1555-6611/aa7865/meta