Ytterbium-sensitized Thulium-doped fiber laser in the near-IR with 980 nm pumping

Pal, A., Dhar, A., Das, S., Chen, S. Y., Sun, T., Sen, R. & Grattan, K. T. V. (2010). Ytterbium-sensitized Thulium-doped fiber laser in the near-IR with 980 nm pumping. Optics Express, 18(5), pp. 5068-5074. doi: 10.1364/OE.18.005068

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Abstract

The use of an unidirectional auxiliary pump at approximately 1600 nm in conjunction with a 980 nm primary pump for Ytterbium (Yb3+)-sensitized-Thulium (Tm3+)-doped single mode silica fiber (YTDF) is found to be very effective to activate the most significant resonance energy transfer from Yb3+ to Tm3+, in order to obtain significant emission in the near-infrared. The resulting laser performance of the YTDF at 1874 nm is reported here. The influence of the Tm3+/Yb3+ concentration, their relative proportions and the host glass composition on the lasing efficiency has also been investigated to optimize the fiber parameters for maximum laser output power.

Item Type: Article
Additional Information: © Pal, A. et al 2010 Optical Society of America. One print or electronic copy may be made for personal use only. Systematic reproduction and distribution, duplication of any material in this paper for a fee or for commercial purposes, or modifications of the content of this paper are prohibited.
Subjects: T Technology > TK Electrical engineering. Electronics Nuclear engineering
Divisions: School of Engineering & Mathematical Sciences > Engineering
URI: http://openaccess.city.ac.uk/id/eprint/14970

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