Analysis of modal interference in photonic bandgap fibres
Analysis of modal interference in photonic bandgap fibres
We present a detailed analysis of multimode interference (MI) effects in a seven cell hollow core Photonic Bandgap Fibre (PBGF). The presence of several modes with widely different group velocities and strong dispersion can give rise to complex MI modulation, which is particularly visible over meter-scale fibre lengths and represents a significant drawback for some PBGF applications. By performing a Fourier analysis of high resolution transmission spectra it was possible to isolate several modulation components. The optical modes corresponding to each of these components were then identified through their differential group index relative to the lowest-order core guided mode by comparison with accurate modal maps.
Petrovich, M.N.
bfe895a0-da85-4a40-870a-2c7bfc84a4cf
Poletti, F.
9adcef99-5558-4644-96d7-ce24b5897491
Richardson, D.J.
ebfe1ff9-d0c2-4e52-b7ae-c1b13bccdef3
2010
Petrovich, M.N.
bfe895a0-da85-4a40-870a-2c7bfc84a4cf
Poletti, F.
9adcef99-5558-4644-96d7-ce24b5897491
Richardson, D.J.
ebfe1ff9-d0c2-4e52-b7ae-c1b13bccdef3
Petrovich, M.N., Poletti, F. and Richardson, D.J.
(2010)
Analysis of modal interference in photonic bandgap fibres.
12th International Conference on Transparent Optical Networks (ICTON 2010), Munich.
27 Jun - 01 Jul 2010.
4 pp
.
(doi:10.1109/ICTON.2010.5549078).
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Conference or Workshop Item
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Abstract
We present a detailed analysis of multimode interference (MI) effects in a seven cell hollow core Photonic Bandgap Fibre (PBGF). The presence of several modes with widely different group velocities and strong dispersion can give rise to complex MI modulation, which is particularly visible over meter-scale fibre lengths and represents a significant drawback for some PBGF applications. By performing a Fourier analysis of high resolution transmission spectra it was possible to isolate several modulation components. The optical modes corresponding to each of these components were then identified through their differential group index relative to the lowest-order core guided mode by comparison with accurate modal maps.
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Published date: 2010
Venue - Dates:
12th International Conference on Transparent Optical Networks (ICTON 2010), Munich, 2010-06-27 - 2010-07-01
Organisations:
Optoelectronics Research Centre
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Local EPrints ID: 376079
URI: http://eprints.soton.ac.uk/id/eprint/376079
PURE UUID: 3dad0728-9c6d-4690-bb6f-0dc094b2e5ba
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Date deposited: 23 Apr 2015 11:16
Last modified: 15 Mar 2024 03:28
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Author:
M.N. Petrovich
Author:
F. Poletti
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