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9 dB gain improvement of 1300 nm optical amplifier by amplified spontaneous emission suppressing fibre design

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7 Author(s)
Bjarklev, A. ; Center for Broadband Telecommun., Electromagnetics Inst., Tech. Univ., of Denmark, Lyngby, Denmark ; Rasmussen, T. ; Povlsen, J. ; Lumholt, O.
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A new design of a Nd-doped fluoride fibre for 1300 nm small-signal amplification is presented. By placing the active material so that the 1050 nm amplified spontaneous emission is discriminated, a gain improvement of up to 6.6 dB is predicted. By including higher order pump modes an extra 2.1 dB gain improvement is achieved.

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Electronics Letters  (Volume:27 ,  Issue: 19 )