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Article: Modulation instabilities in birefringent two-core optical fibers

TitleModulation instabilities in birefringent two-core optical fibers
Authors
Issue Date2012
PublisherInstitute of Physics Publishing. The Journal's web site is located at http://www.iop.org/journals/jpb
Citation
Journal of Physics B: Atomic, Molecular and Optical Physics, 2012, v. 45 n. 16, article no. 165404 How to Cite?
AbstractPrevious studies of the modulation instability (MI) of continuous waves (CWs) in a two-core fibre (TCF) did not consider effects caused by co-propagation of the two polarized modes in a TCF that possesses birefringence, such as cross-phase modulation (XPM), polarization-mode dispersion (PMD) and polarization-dependent coupling (PDC) between the cores. This paper reports an analysis of these effects on the MI by considering a linear-birefringence TCF and a circular-birefringence TCF, which feature different XPM coefficients. The analysis focuses on the MI of the asymmetric CW states in the TCFs, which have no counterparts in single-core fibres. We find that the asymmetric CW state exists when its total power exceeds a threshold (minimum) value, which is sensitive to the value of the XPM coefficient. We consider, in particular, a class of asymmetric CW states that admit analytical solutions. In the anomalous dispersion regime, without taking the PMD and PDC into account, the MI gain spectra of the birefringent TCF, if scaled by the threshold power, are almost identical to those of the zero-birefringence TCF. However, in the normal dispersion regime, the power-scaled MI gain spectra of the birefringent TCFs are distinctly different from their zero-birefringence counterparts, and the difference is particularly significant for the circular-birefringence TCF, which takes a larger XPM coefficient. On the other hand, the PMD and PDC only exert weak effects on the MI gain spectra. We also simulate the nonlinear evolution of the MI of the CW inputs in the TCFs and obtain good agreement with the analytical solutions.
Persistent Identifierhttp://hdl.handle.net/10722/159583
ISSN
2015 Impact Factor: 1.833
2015 SCImago Journal Rankings: 0.732
ISI Accession Number ID

 

DC FieldValueLanguage
dc.contributor.authorLi, JHen_US
dc.contributor.authorChiang, KSen_US
dc.contributor.authorMalomed, BAen_US
dc.contributor.authorChow, KWen_US
dc.date.accessioned2012-08-16T05:52:45Z-
dc.date.available2012-08-16T05:52:45Z-
dc.date.issued2012en_US
dc.identifier.citationJournal of Physics B: Atomic, Molecular and Optical Physics, 2012, v. 45 n. 16, article no. 165404en_US
dc.identifier.issn0953-4075-
dc.identifier.urihttp://hdl.handle.net/10722/159583-
dc.description.abstractPrevious studies of the modulation instability (MI) of continuous waves (CWs) in a two-core fibre (TCF) did not consider effects caused by co-propagation of the two polarized modes in a TCF that possesses birefringence, such as cross-phase modulation (XPM), polarization-mode dispersion (PMD) and polarization-dependent coupling (PDC) between the cores. This paper reports an analysis of these effects on the MI by considering a linear-birefringence TCF and a circular-birefringence TCF, which feature different XPM coefficients. The analysis focuses on the MI of the asymmetric CW states in the TCFs, which have no counterparts in single-core fibres. We find that the asymmetric CW state exists when its total power exceeds a threshold (minimum) value, which is sensitive to the value of the XPM coefficient. We consider, in particular, a class of asymmetric CW states that admit analytical solutions. In the anomalous dispersion regime, without taking the PMD and PDC into account, the MI gain spectra of the birefringent TCF, if scaled by the threshold power, are almost identical to those of the zero-birefringence TCF. However, in the normal dispersion regime, the power-scaled MI gain spectra of the birefringent TCFs are distinctly different from their zero-birefringence counterparts, and the difference is particularly significant for the circular-birefringence TCF, which takes a larger XPM coefficient. On the other hand, the PMD and PDC only exert weak effects on the MI gain spectra. We also simulate the nonlinear evolution of the MI of the CW inputs in the TCFs and obtain good agreement with the analytical solutions.-
dc.languageengen_US
dc.publisherInstitute of Physics Publishing. The Journal's web site is located at http://www.iop.org/journals/jpb-
dc.relation.ispartofJournal of Physics B: Atomic, Molecular and Optical Physicsen_US
dc.rightsJournal of Physics B: Atomic, Molecular and Optical Physics. Copyright © Institute of Physics Publishing.-
dc.rightsCreative Commons: Attribution 3.0 Hong Kong License-
dc.titleModulation instabilities in birefringent two-core optical fibersen_US
dc.typeArticleen_US
dc.identifier.emailChow, KW: kwchow@hku.hken_US
dc.identifier.authorityChow, KW=rp00112en_US
dc.description.naturepostprint-
dc.identifier.doi10.1088/0953-4075/45/16/165404-
dc.identifier.scopuseid_2-s2.0-84865037788-
dc.identifier.hkuros215384en_US
dc.identifier.hkuros205293-
dc.identifier.volume45en_US
dc.identifier.issue16-
dc.identifier.isiWOS:000307517900015-
dc.publisher.placeUnited Kingdom-

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