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Generation of controlled optical spectra using phase modulation and suppression of stimulated brillouin scattering

Generation of controlled optical spectra using phase modulation and suppression of stimulated brillouin scattering
Generation of controlled optical spectra using phase modulation and suppression of stimulated brillouin scattering
Special phase modulation formats for broadening the narrow linewidth laser for suppression of stimulated Brillouin scattering (SBS) and thereby boosting power in fibre amplifiers has been given much attention lately [1]. We experimentally generate optimized arbitrary periodic waveforms realized with arbitrary waveform generator (AWG) that can produce desirable optical spectra with sufficient accuracy when used for phase modulation. Nonlinear optimization is carried out on phase modulation waveform samples to minimize a cost function which results in optical spectra having nearly equal amplitude discrete spectral lines with most of the power concentrated in the targeted broadened bandwidth ideal for SBS suppression.
Harish, A.V.
833a8dce-cb98-479c-a78d-f754883ff2fd
Nilsson, J.
f41d0948-4ca9-4b93-b44d-680ca0bf157b
Harish, A.V.
833a8dce-cb98-479c-a78d-f754883ff2fd
Nilsson, J.
f41d0948-4ca9-4b93-b44d-680ca0bf157b

Harish, A.V. and Nilsson, J. (2015) Generation of controlled optical spectra using phase modulation and suppression of stimulated brillouin scattering. 2015 European Conference on Lasers and Electro-Optics - European Quantum Electronics Conference, CLEO/Europe-EQEC 2015, Germany. 21 - 25 Jun 2015.

Record type: Conference or Workshop Item (Poster)

Abstract

Special phase modulation formats for broadening the narrow linewidth laser for suppression of stimulated Brillouin scattering (SBS) and thereby boosting power in fibre amplifiers has been given much attention lately [1]. We experimentally generate optimized arbitrary periodic waveforms realized with arbitrary waveform generator (AWG) that can produce desirable optical spectra with sufficient accuracy when used for phase modulation. Nonlinear optimization is carried out on phase modulation waveform samples to minimize a cost function which results in optical spectra having nearly equal amplitude discrete spectral lines with most of the power concentrated in the targeted broadened bandwidth ideal for SBS suppression.

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More information

Published date: 21 June 2015
Additional Information: Poster
Venue - Dates: 2015 European Conference on Lasers and Electro-Optics - European Quantum Electronics Conference, CLEO/Europe-EQEC 2015, Germany, 2015-06-21 - 2015-06-25

Identifiers

Local EPrints ID: 442438
URI: http://eprints.soton.ac.uk/id/eprint/442438
PURE UUID: 79610c4f-93c0-4b99-b267-6f5e9f03e734
ORCID for J. Nilsson: ORCID iD orcid.org/0000-0003-1691-7959

Catalogue record

Date deposited: 15 Jul 2020 16:31
Last modified: 16 Jul 2020 00:26

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