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Proceedings Paper

Studies to enhance the beam quality from flashlamp-pumped dye lasers
Author(s): David H. Pitterton; Paul A. Winstanley; Andrew J. Finlayson; A. D. Case; E. S. Llewelyn
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Paper Abstract

A number of techniques have been considered for reducing the divergence of the beam of energy generated by a flashlamp pumped dye laser, particularly for those lasers with a high Fresnel number. the principal motivation is to enhance the brightness of such laser beams. The techniques that have been evaluated, or are under active investigation, include: solvent effects; unstable resonators; telescopic resonators; oscillator amplifier configurations; and phase conjugation techniques. Results are presented that show that judicious choice of solvents can give a modest reduction in divergence and improvements of at least a factor two in beam brightness. More sophisticated techniques such as the use of a telescopic resonator can enhance the brightness by a factor in excess of 200. There is scope for further improvement in beam quality by suitable combinations of techniques or materials.

Paper Details

Date Published: 1 June 1994
PDF: 12 pages
Proc. SPIE 2115, Visible and UV Lasers, (1 June 1994); doi: 10.1117/12.172740
Show Author Affiliations
David H. Pitterton, DRA Farnborough (United Kingdom)
Paul A. Winstanley, DRA Farnborough (United Kingdom)
Andrew J. Finlayson, DRA Farnborough (United Kingdom)
A. D. Case, DRA Farnborough (United Kingdom)
E. S. Llewelyn, DRA Farnborough (United Kingdom)

Published in SPIE Proceedings Vol. 2115:
Visible and UV Lasers
Richard Scheps, Editor(s)

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