Harun, S W and Paul, Mukul Chandra and Moghaddam, M. R. A. and Dasgupta, S and Sen, Ranjan and Dhar, A and Pal, Mrinmay and Bhadra, Shyamal Kumar and Ahmad, H (2010) Diode-pumped 1028 nm Ytterbium-doped fiber laser with near 90% slope efficiency. Laser Physics, 20 (3). pp. 656-660. ISSN 1054-660X

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Highly efficient laser action from an Ytterbium-doped fiber (YDF) is demonstrated using a fiber Bragg grating (FBG) in conjunction with a 4% Fresnel reflection at room temperature. The YDF used is drawn from Yb(2)O(3)-doped preform, fabricated through deposition of porous layer of composition SiO(2)-GeO(2) by the MCVD process in conjunction with a solution doping technique. The fabricated YDF has a core composition of 0.2 wt % of Yb(2)O(3), 1.8 wt % of Al(2)O(3) and 23 wt % of GeO(2) with a pump absorption of 9.0 dB/m. The fiber laser operates at wavelength of 1028 nm with a slope efficiency of 88% with respect to the launched 976 nm pump power using the YDF length of 7 m.

Item Type: Article
Subjects: Processing Science
Divisions: Fuel Cell and Battery
Depositing User: Bidhan Chaudhuri
Date Deposited: 13 Feb 2012 07:07
Last Modified: 29 Feb 2012 12:55
URI: http://cgcri.csircentral.net/id/eprint/785

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