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Accurate modal gain control in a multimode erbium doped fiber amplifier incorporating ring doping and a simple LP_01 pump configuration

Kang, Qiongyue, Lim, Ee Leong, Jung, Yongmin, Sahu, Jayanta K., Poletti, Francesco, Baskiotis, Catherine, Alam, Shaif-Ul and Richardson, David J. (2012) Accurate modal gain control in a multimode erbium doped fiber amplifier incorporating ring doping and a simple LP_01 pump configuration Optics Express, 20, (19), pp. 20835-20843. (doi:10.1364/OE.20.020835).

Record type: Article

Abstract

We experimentally validate a numerical model to study multimode erbium-doped fiber amplifiers (MM-EDFAs). Using this model, we demonstrate the improved performance achievable in a step index MM-EDFA incorporating a localized erbium doped ring and its potential for Space Division Multiplexed (SDM) transmission. Using a pure LP01 pump beam, which greatly simplifies amplifier construction, accurate modal gain control can be achieved by carefully tuning the thickness of the ring-doped layer in the active fiber and the pump power. In particular, by optimizing the erbium-ring-doped structure and the length of active fiber used, over 20dB gain for both LP01 and LP11 signals with a maximum gain difference of around 2 dB across the C band are predicted for a pure LP01 pump beam delivering 250mW power at 980nm.

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More information

Published date: 28 August 2012
Organisations: Optoelectronics Research Centre

Identifiers

Local EPrints ID: 343089
URI: http://eprints.soton.ac.uk/id/eprint/343089
ISSN: 1094-4087
PURE UUID: 422083ac-fb80-440c-91e2-1e5ee0e61252
ORCID for Francesco Poletti: ORCID iD orcid.org/0000-0002-1000-3083

Catalogue record

Date deposited: 24 Sep 2012 12:40
Last modified: 19 Sep 2017 16:33

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Contributors

Author: Qiongyue Kang
Author: Ee Leong Lim
Author: Yongmin Jung
Author: Jayanta K. Sahu
Author: Catherine Baskiotis
Author: Shaif-Ul Alam

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