Characterizing output beams for lasers that use high-magnification unstable resonators | Macquarie University ResearchOnline

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Title: Characterizing output beams for lasers that use high-magnification unstable resonators
Related: Journal of the Optical Society of America A : optics, image science, and vision, Vol. 18, No. 7 (2001), p.1634-1643
DOI: 10.1364/JOSAA.18.001634
Publisher: Optical Society of America
Date: 2001
Author/Creator: Saghafi, Saiedeh
Author/Creator: Withford, Michael J
Author/Creator: Piper, James A
Description: Laser beams generated from high-magnification on-axis unstable resonators by use of hard-edged optics typically have a doughnut-shaped distribution in the near field (i.e., a flat-top profile with a hole in the middle for an axially coupled beam). We derive analytical expressions describing this distribution by using the flattened Gaussian beams concept. The superposition of two flattened Gaussian beams whose flatness and steepness of edges are controlled by defined parameters (i.e., the beam width and the order) is used to analyze the output beam intensity along the propagation axis. Finally, experimental measurements of beam propagation from a copper-vapor laser fitted with a high-magnification unstable resonator show excellent agreement with theoretical predictions.
Description: 10 page(s)
Resource Type: journal article
Organisation: Macquarie University. Dept. of Physics
Organisation: Macquarie University. Office of the Deputy Vice-Chancellor (Research)

Identifier: http://hdl.handle.net/1959.14/119285
Identifier: ISSN:0740-3232
Identifier: mq-rm-2001012970
Language: eng
Rights: This paper was published in Journal of the Optical Society of America A : optics, image science, and vision and is made available as an electronic reprint with the permission of OSA. The paper can be found at the following URL on the OSA website: [http://www.opticsinfobase.org/abstract.cfm?URI=JOSAA-18-7-1634]. Systematic or multiple reproduction or distribution to multiple locations via electronic or other means is prohibited and is subject to penalties under law.
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