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Applied Optics

Applied Optics

APPLICATIONS-CENTERED RESEARCH IN OPTICS

  • Vol. 39, Iss. 18 — Jun. 20, 2000
  • pp: 3053–3059

Efficient acousto-optic Q switching of Er:YSGG lasers at 2.79-µm wavelength

Pal Maak, Laszlo Jakab, Peter Richter, Hans J. Eichler, and Baining Liu  »View Author Affiliations


Applied Optics, Vol. 39, Issue 18, pp. 3053-3059 (2000)
http://dx.doi.org/10.1364/AO.39.003053


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Abstract

A flash-lamp-pumped Er:Cr:YSGG laser at 2.79-µm wavelength has been acousto-optically Q switched. The Q-switched pulse energy and duration depend on pump pulse level and relative Q-switching time. Limits of single-pulse operation with the given acousto-optic diffraction efficiency have been determined. Resonator length, position of the Q switch, and output mirror reflectivity have been varied to obtain high pulse energy and the shortest pulse duration in the TEM00 transverse laser mode. A maximum single-pulse energy of 27 mJ and a minimum pulse duration of 120 ns were obtained with an output mirror reflectivity of approximately 25%. The highest Q-switched single-pulse energy amounted to 52% of the free-running, fundamental mode output pulse energy.

© 2000 Optical Society of America

OCIS Codes
(140.3500) Lasers and laser optics : Lasers, erbium
(140.3540) Lasers and laser optics : Lasers, Q-switched
(140.4780) Lasers and laser optics : Optical resonators
(160.1050) Materials : Acousto-optical materials
(230.1040) Optical devices : Acousto-optical devices

History
Original Manuscript: May 7, 1999
Revised Manuscript: March 7, 2000
Published: June 20, 2000

Citation
Pal Maak, Laszlo Jakab, Peter Richter, Hans J. Eichler, and Baining Liu, "Efficient acousto-optic Q switching of Er:YSGG lasers at 2.79-µm wavelength," Appl. Opt. 39, 3053-3059 (2000)
http://www.opticsinfobase.org/ao/abstract.cfm?URI=ao-39-18-3053

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