Analysis of gain and noise performance of bidirectionally pumped Pr 3+ -doped fluoride fibre amplifier configurations with unbalanced pumping

Abstract

An alysis of gain an d n oise pe rform an c e of bid ire c tion ally pu m pe d Pr 3+ -d ope d¯u orid e ® bre am pli® e r c on ® gu ration s w ith u n balan c e d pu m pin g Abs trac t.This paper presents a numerical study of the performance of asymmetric bidirectionally pumped and re¯ective-type ampli® er con® gurations in the unsaturated and saturated regions. The dependences of the optimum relative backward pump power on the ® bre parameters and on the ampli® er's working conditions for each con® guration are analysed. This study has been made in the frameworkof the European Project COST 241: Characterization of Active Fibres for the Photonic Network.

Performance Enhancement of Praseodymium Doped Fiber Amplifiers

“…The authors observed that the doping concentration of around 1000 ppm results into significant degradation in performance [23]. Valles et al proposed a numerical study to evaluate the gain and ASE performance of PDFA based on fluoride fiber and bidirectional pumping [24]. A peak small-signal gain of around 31 dB is obtained by using a double-path configuration with a reflective type of mirror.…”