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Minimizing differential modal gain in cladding-pumped EDFAs supporting four and six mode groups

Minimizing differential modal gain in cladding-pumped EDFAs supporting four and six mode groups
Minimizing differential modal gain in cladding-pumped EDFAs supporting four and six mode groups
We employ a Genetic Algorithm for the purpose of minimization of the maximum differential modal gain (DMG) over all the supported signal modes (at the same wavelength) of cladding-pumped four-mode and six-mode-group EDFAs. The optimal EDFA designs found through the algorithm provide less than 1 dB DMG across the C-band (1530-1565 nm) whilst achieving more than 20 dB gain per mode. We then analyze the sensitivity of the DMG to small variations from the optimal value of the erbium doping concentration and the structural parameters, and estimate the fabrication tolerance for reliable amplifier performance.
1094-4087
21499-21507
Kang, Qiongyue
261baa75-d2c0-46f1-9386-3c6a138129f0
Lim, Ee Leong
55c097dc-30d4-49df-9995-894c87dc2560
Poletti, Francesco
9adcef99-5558-4644-96d7-ce24b5897491
Jung, Yongmin
6685e51e-be47-4c96-8c4b-65aee3b5126d
Baskiotis, Catherine
bee462eb-edb4-4cb5-b24f-3bf350cf12d5
Alam, Shaif-ul
2b6bdbe5-ddcc-4a88-9057-299360b93435
Richardson, David J.
ebfe1ff9-d0c2-4e52-b7ae-c1b13bccdef3
Kang, Qiongyue
261baa75-d2c0-46f1-9386-3c6a138129f0
Lim, Ee Leong
55c097dc-30d4-49df-9995-894c87dc2560
Poletti, Francesco
9adcef99-5558-4644-96d7-ce24b5897491
Jung, Yongmin
6685e51e-be47-4c96-8c4b-65aee3b5126d
Baskiotis, Catherine
bee462eb-edb4-4cb5-b24f-3bf350cf12d5
Alam, Shaif-ul
2b6bdbe5-ddcc-4a88-9057-299360b93435
Richardson, David J.
ebfe1ff9-d0c2-4e52-b7ae-c1b13bccdef3

Kang, Qiongyue, Lim, Ee Leong, Poletti, Francesco, Jung, Yongmin, Baskiotis, Catherine, Alam, Shaif-ul and Richardson, David J. (2014) Minimizing differential modal gain in cladding-pumped EDFAs supporting four and six mode groups. Optics Express, 22 (18), 21499-21507. (doi:10.1364/OE.22.021499).

Record type: Article

Abstract

We employ a Genetic Algorithm for the purpose of minimization of the maximum differential modal gain (DMG) over all the supported signal modes (at the same wavelength) of cladding-pumped four-mode and six-mode-group EDFAs. The optimal EDFA designs found through the algorithm provide less than 1 dB DMG across the C-band (1530-1565 nm) whilst achieving more than 20 dB gain per mode. We then analyze the sensitivity of the DMG to small variations from the optimal value of the erbium doping concentration and the structural parameters, and estimate the fabrication tolerance for reliable amplifier performance.

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Published date: 8 September 2014
Organisations: Optoelectronics Research Centre

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Local EPrints ID: 368480
URI: http://eprints.soton.ac.uk/id/eprint/368480
ISSN: 1094-4087
PURE UUID: 461087f7-f302-41d4-8dbe-568d695e7355
ORCID for Francesco Poletti: ORCID iD orcid.org/0000-0002-1000-3083
ORCID for Yongmin Jung: ORCID iD orcid.org/0000-0002-9054-4372
ORCID for David J. Richardson: ORCID iD orcid.org/0000-0002-7751-1058

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Date deposited: 04 Sep 2014 12:54
Last modified: 21 Apr 2021 01:43

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