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Appl Opt. 2008 Apr 1;47(10):1581-4.

Broadband emission from a multicore fiber fabricated with granulated oxides.

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Institute of Applied Physics, University of Bern, Bern, Switzerland.


We demonstrate a multicore multidopant fiber which, when pumped with a single pump source around approximately 800 nm, emits a more than one octave-spanning fluorescence spectrum ranging from 925 to 2300 nm. The fiber preform is manufactured from granulated oxides and the individual cores are doped with five different rare earths, i.e., Nd3+, Yb3+, Er3+, Ho3+, and Tm3+.


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