Gain clamping performance of Hafnia-bismuth-erbium co-doped fibre amplifier using lasing controlled structure with FBG

In this study, the gain clamping performance of Hafnia-bismuth-erbium co-doped fibre amplifier (HB-EDFA) using a lasing controlled structure with fibre Bragg grating (FBG) pair is presented. First, the gain and noise figure (NF) characteristics of a bidirectionally pumped HB-EDFA with very short len...

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Bibliographic Details
Published in:Journal of modern optics 2021-05, Vol.68 (8), p.457-462
Main Authors: Zulkipli, N.F., Sadik, S.A., Durak, F.E., Paul, M.C., Altuncu, A., Harun, S.W.
Format: Article
Language:English
Subjects:
Amplification
Amplifiers
Bismuth
Bragg gratings
C band
Clamping
Design parameters
Doped fibers
Erbium
FBG
gain clamping
Hafnia-bismuth-erbium co-doped fibre
Hafnium oxide
Lasing
optical fibre amplifier
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Summary:In this study, the gain clamping performance of Hafnia-bismuth-erbium co-doped fibre amplifier (HB-EDFA) using a lasing controlled structure with fibre Bragg grating (FBG) pair is presented. First, the gain and noise figure (NF) characteristics of a bidirectionally pumped HB-EDFA with very short lengths of heavily doped fibre are presented regarding its critical design parameters such as HB-EDF length, pump power, input signal power and signal wavelength. Then, the gain clamping performance of a bidirectionally pumped HB-EDFA having a C-band FBG pair with Bragg wavelengths of 1534 and 1542 nm is experimentally analysed. A good gain clamping capability was obtained using the proposed bidirectionally HB-EDFA design which has resulted in a dynamic signal input power range of 25 dB at 16 dB signal gain for 1.6 m HB-EDF length, and a wider dynamic signal input power range of 30 dB at 10 dB signal gain for 1.1 m HB-EDF length.
ISSN:0950-0340
1362-3044
DOI:10.1080/09500340.2021.1912424