Real-time modal analysis via wavelength-swept spatial and spectral (S2) imaging
Real-time modal analysis via wavelength-swept spatial and spectral (S2) imaging
We present a fast implementation of the spatial and spectral imaging (S2) technique for modal analysis of multimode optical fibers. It utilizes a continuously scanning tunable laser source with an InGaAs camera operating at 500Hz along with inline data processing to increase the measurement repetition rate, by reducing the run up/run down time between two successive scans (about 27 times faster as compared to the previous state of the art). This allows real-time mode content monitoring of a multimode fiber. We illustrate the potential of this tool by collecting an 110,000 wavelength S2 spectrogram of a 5 mode-group fiber in minutes, and tracking, in real-time, the four LP11 modes of the same fiber as the launch polarization is rotated.
characterization, fiber optics, multimode
1034-1037
Gray, D.R.
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Petrovich, M.N.
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Sandoghchi, S.R.
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Wheeler, N.V.
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Baddela, N.K.
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Jasion, G.
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Bradley, T.
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Richardson, D.J.
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Poletti, F.
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Gray, D.R.
46319dbb-26c5-487b-af42-891e7b00e14f
Petrovich, M.N.
bfe895a0-da85-4a40-870a-2c7bfc84a4cf
Sandoghchi, S.R.
15499707-d3f2-42f1-90e2-cbe260462487
Wheeler, N.V.
0fd34178-a77b-4c71-a3a6-86a1f634f1a0
Baddela, N.K.
1a871ff8-f95d-495b-8b91-9d6ccd209528
Jasion, G.
16cfff1d-d178-41d1-a092-56e6239726b8
Bradley, T.
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Richardson, D.J.
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Poletti, F.
9adcef99-5558-4644-96d7-ce24b5897491
Gray, D.R., Petrovich, M.N., Sandoghchi, S.R., Wheeler, N.V., Baddela, N.K., Jasion, G., Bradley, T., Richardson, D.J. and Poletti, F.
(2016)
Real-time modal analysis via wavelength-swept spatial and spectral (S2) imaging.
IEEE Photonics Technology Letters, 28 (9), .
(doi:10.1109/LPT.2016.2524592).
Abstract
We present a fast implementation of the spatial and spectral imaging (S2) technique for modal analysis of multimode optical fibers. It utilizes a continuously scanning tunable laser source with an InGaAs camera operating at 500Hz along with inline data processing to increase the measurement repetition rate, by reducing the run up/run down time between two successive scans (about 27 times faster as compared to the previous state of the art). This allows real-time mode content monitoring of a multimode fiber. We illustrate the potential of this tool by collecting an 110,000 wavelength S2 spectrogram of a 5 mode-group fiber in minutes, and tracking, in real-time, the four LP11 modes of the same fiber as the launch polarization is rotated.
Text
Real-Time Modal Analysis via Wavelength- Swept Spatial and Spectral (S2) Imaging.pdf
- Accepted Manuscript
More information
Submitted date: 12 October 2015
Accepted/In Press date: 25 January 2016
e-pub ahead of print date: 3 February 2016
Keywords:
characterization, fiber optics, multimode
Organisations:
Optoelectronics Research Centre
Identifiers
Local EPrints ID: 379433
URI: http://eprints.soton.ac.uk/id/eprint/379433
ISSN: 1041-1135
PURE UUID: 9f123443-0b9e-4bc6-94ae-78adae85e69d
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Date deposited: 04 Feb 2016 09:03
Last modified: 10 Apr 2024 01:46
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Contributors
Author:
D.R. Gray
Author:
S.R. Sandoghchi
Author:
N.K. Baddela
Author:
T. Bradley
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