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Optics Letters

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  • Editor: Alan E. Willner
  • Vol. 37, Iss. 5 — Mar. 1, 2012
  • pp: 887–889

Thulium channel waveguide laser in a monoclinic double tungstate with 70% slope efficiency

K. van Dalfsen, S. Aravazhi, C. Grivas, S. M. García-Blanco, and M. Pollnau  »View Author Affiliations


Optics Letters, Vol. 37, Issue 5, pp. 887-889 (2012)
http://dx.doi.org/10.1364/OL.37.000887


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Abstract

Laser experiments were performed on buried, ridge-type channel waveguides in an 8 at. % thulium-doped, yttrium-gadolinium-lutetium codoped monoclinic double tungstate. A maximum slope efficiency of 70% and output powers up to 300 mW about 2.0 μm were obtained in a mirrorless laser resonator, by pumping with a Ti:sapphire laser near 800 nm. To the best of our knowledge, this result represents the most efficient 2 μm channel waveguide laser to date. Lasing is obtained at various wavelengths between 1810 nm and 2037 nm.

© 2012 Optical Society of America

OCIS Codes
(130.3130) Integrated optics : Integrated optics materials
(140.3070) Lasers and laser optics : Infrared and far-infrared lasers
(140.3580) Lasers and laser optics : Lasers, solid-state
(230.7380) Optical devices : Waveguides, channeled
(310.6845) Thin films : Thin film devices and applications

ToC Category:
Lasers and Laser Optics

History
Original Manuscript: December 19, 2011
Revised Manuscript: January 13, 2012
Manuscript Accepted: January 15, 2012
Published: February 24, 2012

Citation
K. van Dalfsen, S. Aravazhi, C. Grivas, S. M. García-Blanco, and M. Pollnau, "Thulium channel waveguide laser in a monoclinic double tungstate with 70% slope efficiency," Opt. Lett. 37, 887-889 (2012)
http://www.opticsinfobase.org/ol/abstract.cfm?URI=ol-37-5-887


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