New tapered active fibres for very low noise amplifier applications

New tapered active fibres for very low noise amplifier applications

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A new Er-doped fibre design for low noise amplifier applications is presented. The active fibre is continuously uptapered from the signal input end to the signal output end. Generated amplified spontaneous emission is thus reduced and high gain properties are preserved. Noise figure reductions of more than 0.5dB for copropagating pump and 2.0dB for counterpropagating pump are predicted.


    1. 1)
      • E. Desurvire , J.L. Zyskind , C.R. Giles . Design optimization for efficient erbium-doped fiber amplifiers. J. Lightwave Technol. , 11 , 1730 - 1741
    2. 2)
      • B. Pedersen , A. Bjarklev , H. Vendeltorp-Pommer , J.H. Povlsen . Erbium doped fibre amplifier: efficient pumping at 807nm. Opt. Commun. , 23 - 26
    3. 3)
      • Payne, D.N., Laming, R.I.: `Optical fibre amplifiers', ThF1, OFC '90, San Francisco, California, USA, p. 331–354, Tutorial.
    4. 4)
      • B. Pedersen , A. Bjarklev , J.H. Povlsen , K. Dybdal , C.C. Larsen . The design of erbium doped fibre amplifiers. J. Lightwave Techno. , 9 , 1105 - 1112
    5. 5)
      • Bjarklev, A., Lomholt Hansen, S., Hedegaard Povlsen, J.: `Large signal modelling of an erbium doped fibre amplifier', Proc. SPIE '89, September 1989, 1171, p. 118–129.
    6. 6)
      • N.A. Olsson . Lightwave systems with optical amplifiers. J. Lightwave Technol. , 7 , 1071 - 1082

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