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Optics Letters

Optics Letters

| RAPID, SHORT PUBLICATIONS ON THE LATEST IN OPTICAL DISCOVERIES

  • Editor: Xi-Cheng Zhang
  • Vol. 39, Iss. 15 — Aug. 1, 2014
  • pp: 4380–4383

Thulium channel waveguide laser with 1.6  W of output power and ∼80% slope efficiency

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


Optics Letters, Vol. 39, Issue 15, pp. 4380-4383 (2014)
http://dx.doi.org/10.1364/OL.39.004380


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Abstract

Laser experiments were performed on buried, ridge-type channel waveguides in 8 at.% thulium-doped, yttrium–gadolinium–lutetium co-doped potassium double tungstate. By pumping with a Ti:sapphire laser at 794 nm, 1.6 W of output power at 1.84 μm with a maximum slope efficiency of 80% was obtained in a laser resonator with a high output-coupling degree of 89%. To the best of our knowledge, this result represents the most efficient 2-μm channel waveguide laser to date.

© 2014 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: April 17, 2014
Revised Manuscript: June 20, 2014
Manuscript Accepted: June 20, 2014
Published: July 22, 2014

Citation
K. van Dalfsen, S. Aravazhi, C. Grivas, S. M. García-Blanco, and M. Pollnau, "Thulium channel waveguide laser with 1.6  W of output power and ∼80% slope efficiency," Opt. Lett. 39, 4380-4383 (2014)
http://www.opticsinfobase.org/ol/abstract.cfm?URI=ol-39-15-4380

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