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20% pump power saving using photoinduced intracore fibre Bragg grating in erbium doped fibre amplifier

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5 Author(s)
Riant, I. ; Alcatel Alsthom Recherche, Marcoussis ; Bousselet, P. ; Sansonetti, P. ; Garabedian, P.
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The authors report the realisation of a contradirectional EDFA whose 1480 nm pump beam, generated by a DFB laser diode, is recycled in it by a photoinduced intracore fibre Bragg grating. Insertion of the fibre grating does not introduce any extra input coupling loss and, for the same gain and noise figure values, allows a 20% decrease of the pump power compared to the EDFA without a fibre grating

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Electronics Letters  (Volume:30 ,  Issue: 3 )