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Optics Letters

| RAPID, SHORT PUBLICATIONS ON THE LATEST IN OPTICAL DISCOVERIES

  • Editor: Alan E. Willner
  • Vol. 37, Iss. 20 — Oct. 15, 2012
  • pp: 4188–4190

Linearly polarized, narrow-linewidth, and tunable Yb:YAG thin-disk laser

Martin Rumpel, Andreas Voss, Michael Moeller, Florian Habel, Christian Moormann, Martin Schacht, Thomas Graf, and Marwan Abdou Ahmed  »View Author Affiliations


Optics Letters, Vol. 37, Issue 20, pp. 4188-4190 (2012)
http://dx.doi.org/10.1364/OL.37.004188


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Abstract

We report on the design, fabrication, and implementation of grating-waveguide structures (GWS) for intracavity polarization and wavelength selection as well as wavelength tuning. The GWS discussed in this Letter is a combination of a low-index leaky-mode waveguide, a subwavelength diffraction grating, and a highly reflective mirror that was designed to operate in Littrow configuration. Using our device as the end mirror of an Yb:YAG thin-disk laser allowed the extraction of beams that exhibit an extremely narrow laser emission bandwidth of 25pm FWHM and a high degree of linear polarization of 99±0.5%. Moreover, the GWS allows a wavelength tuning range from 1007 to 1053 nm. The high-power suitability and the low loss of the GWS was demonstrated by the intracavity use in an Yb:YAG thin-disk laser with an output power of 325 W in multimode operation (M2=6) and with 110 W in fundamental-mode operation (M21.2), exhibiting optical efficiencies of 53.2% and 36.2%, respectively. An output power of 1.8 kW, corresponding to a power density of 125 kW/cm2 on the grating, was achieved in further higher-power experiments.

© 2012 Optical Society of America

OCIS Codes
(140.0140) Lasers and laser optics : Lasers and laser optics
(230.5440) Optical devices : Polarization-selective devices
(050.6624) Diffraction and gratings : Subwavelength structures
(230.7408) Optical devices : Wavelength filtering devices

ToC Category:
Diffraction and Gratings

History
Original Manuscript: August 3, 2012
Revised Manuscript: August 29, 2012
Manuscript Accepted: September 2, 2012
Published: October 3, 2012

Citation
Martin Rumpel, Andreas Voss, Michael Moeller, Florian Habel, Christian Moormann, Martin Schacht, Thomas Graf, and Marwan Abdou Ahmed, "Linearly polarized, narrow-linewidth, and tunable Yb:YAG thin-disk laser," Opt. Lett. 37, 4188-4190 (2012)
http://www.opticsinfobase.org/ol/abstract.cfm?URI=ol-37-20-4188


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