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Suppression of stimulated Brillouin scattering in pulsed erbium-doped fiber amplifier through intensity-modulated counter-pumping

Suppression of stimulated Brillouin scattering in pulsed erbium-doped fiber amplifier through intensity-modulated counter-pumping
Suppression of stimulated Brillouin scattering in pulsed erbium-doped fiber amplifier through intensity-modulated counter-pumping
We suppress stimulated Brillouin scattering in an erbium-doped optical fiber amplifier for 50-ns-long transform-limited signal pulses by counter-directional pumping with a pulse burst. The pump pulse burst is codirectional with the parasitic Brillouin Stokes wave, which therefore undergoes cross-phase modulation and thus spectral broadening due to the intensity-modulated pump. The broadening inhibits its growth. We experimentally study the effect of pump pulse parameters and improve the SBS threshold by up to 4 dB when amplifying signal pulses at a wavelength of 1565 nm with pumping at 1536 nm.
stimulated scattering, brillouin, cross-phase modulation, optical fiber amplifers
0091-3286
1-8
Achar Vasant, Harish
833a8dce-cb98-479c-a78d-f754883ff2fd
Nilsson, Johan
f41d0948-4ca9-4b93-b44d-680ca0bf157b
Achar Vasant, Harish
833a8dce-cb98-479c-a78d-f754883ff2fd
Nilsson, Johan
f41d0948-4ca9-4b93-b44d-680ca0bf157b

Achar Vasant, Harish and Nilsson, Johan (2019) Suppression of stimulated Brillouin scattering in pulsed erbium-doped fiber amplifier through intensity-modulated counter-pumping. Optical Engineering, 58 (10), 1-8, [102703]. (doi:10.1117/1.OE.58.10.102703).

Record type: Article

Abstract

We suppress stimulated Brillouin scattering in an erbium-doped optical fiber amplifier for 50-ns-long transform-limited signal pulses by counter-directional pumping with a pulse burst. The pump pulse burst is codirectional with the parasitic Brillouin Stokes wave, which therefore undergoes cross-phase modulation and thus spectral broadening due to the intensity-modulated pump. The broadening inhibits its growth. We experimentally study the effect of pump pulse parameters and improve the SBS threshold by up to 4 dB when amplifying signal pulses at a wavelength of 1565 nm with pumping at 1536 nm.

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Accepted/In Press date: 5 September 2019
e-pub ahead of print date: 4 October 2019
Published date: October 2019
Keywords: stimulated scattering, brillouin, cross-phase modulation, optical fiber amplifers

Identifiers

Local EPrints ID: 435644
URI: http://eprints.soton.ac.uk/id/eprint/435644
ISSN: 0091-3286
PURE UUID: 1c3bd526-9683-4e18-830b-bc8d454842ef
ORCID for Johan Nilsson: ORCID iD orcid.org/0000-0003-1691-7959

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Date deposited: 15 Nov 2019 17:30
Last modified: 07 Oct 2020 01:42

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