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Optics Letters

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  • Editor: Alan E. Willner
  • Vol. 36, Iss. 21 — Nov. 1, 2011
  • pp: 4137–4139

Transverse mode control by manipulating gain distribution in a Yb:YAG ceramic thin disk

Koki Shimohira, Yuichi Kozawa, and Shunichi Sato  »View Author Affiliations


Optics Letters, Vol. 36, Issue 21, pp. 4137-4139 (2011)
http://dx.doi.org/10.1364/OL.36.004137


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Abstract

We demonstrated that transverse mode can be controlled by manipulating gain distribution in a Yb:YAG ceramic thin disk. Several elongated higher order transverse modes of a Hermite–Gaussian beam were observed when a straight-line-shaped gain region was created by using a diode laser output from an optical fiber. An orthogonally crossing pair of straight-line-shaped gain regions created with an additional optical fiber output resulted in the generation of a doughnut-shaped Laguerre–Gaussian beam. This implies that easy and quick switching of Hermite–Gaussian and Laguerre–Gaussian beams is possible without mechanical handling.

© 2011 Optical Society of America

OCIS Codes
(140.3410) Lasers and laser optics : Laser resonators
(140.3480) Lasers and laser optics : Lasers, diode-pumped
(140.3615) Lasers and laser optics : Lasers, ytterbium

ToC Category:
Lasers and Laser Optics

History
Original Manuscript: August 17, 2011
Revised Manuscript: September 20, 2011
Manuscript Accepted: September 20, 2011
Published: October 19, 2011

Citation
Koki Shimohira, Yuichi Kozawa, and Shunichi Sato, "Transverse mode control by manipulating gain distribution in a Yb:YAG ceramic thin disk," Opt. Lett. 36, 4137-4139 (2011)
http://www.opticsinfobase.org/ol/abstract.cfm?URI=ol-36-21-4137


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