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Applied Optics

Applied Optics


  • Vol. 37, Iss. 6 — Feb. 20, 1998
  • pp: 1053–1059

Experimental Study of Generalized Self-Filtering Unstable Resonators in an Ablative-Wall Flash-Lamp-Pumped Dye Laser

Mohamad Mahmodi, Amir Hossein Farahbod, and Akbar Hariri  »View Author Affiliations

Applied Optics, Vol. 37, Issue 6, pp. 1053-1059 (1998)

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The performance of a generalized self-filtering unstable resonator (GSFUR) that consists of two curved mirrors in a nonconfocal scheme with a low magnification of <i>M</i> = −1.62 in an ablative-wall flash-lamp dye laser is reported. The objective was to study the near- and far-field intensity distribution and the divergence of the laser beam. It was found that the output beam has a nearly Gaussian distribution with a pulse duration of ~400 ns FWHM, almost independent of the diameter of the field-limiting aperture, but increases slightly with the pumping rate. A diffraction-limited laser beam of 1.1 mrad was obtained from this laser cavity. The output energy was ~1 mJ when an intracavity glass plate was used as an output coupler. The required relations needed for the GSFUR design were also derived.

© 1998 Optical Society of America

OCIS Codes
(140.0140) Lasers and laser optics : Lasers and laser optics
(140.2050) Lasers and laser optics : Dye lasers
(140.3410) Lasers and laser optics : Laser resonators
(140.4780) Lasers and laser optics : Optical resonators
(230.5750) Optical devices : Resonators

Mohamad Mahmodi, Amir Hossein Farahbod, and Akbar Hariri, "Experimental Study of Generalized Self-Filtering Unstable Resonators in an Ablative-Wall Flash-Lamp-Pumped Dye Laser," Appl. Opt. 37, 1053-1059 (1998)

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