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

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Dalfsen van, K. and Aravazhi, S. and Grivas, C. and García-Blanco, S.M. and Pollnau, M. (2012) Thulium channel waveguide laser in a monoclinic double tungstate with 70% slope efficiency. Optics Letters, 37 (5). pp. 887-889. ISSN 0146-9592

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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.
Item Type:Article
Copyright:© 2012 Optical Society of America
Faculty:
Electrical Engineering, Mathematics and Computer Science (EEMCS)
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Link to this item:http://purl.utwente.nl/publications/79800
Official URL:http://dx.doi.org/10.1364/OL.37.000887
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