High speed optical communication systems: From modulation formats to radically new fibres

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dc.contributor.advisor Morrison, Alan P. en
dc.contributor.advisor Gunning, Fatima C. Garcia en
dc.contributor.advisor Ellis, Andrew D. en
dc.contributor.author Mac Suibhne, Naoise C.
dc.date.accessioned 2015-08-12T11:52:30Z
dc.date.available 2015-08-12T11:52:30Z
dc.date.issued 2014
dc.date.submitted 2014
dc.identifier.citation Mac Suibhne, N. 2014. High speed optical communication systems: From modulation formats to radically new fibres. PhD Thesis, University College Cork. en
dc.identifier.endpage 142
dc.identifier.uri http://hdl.handle.net/10468/1895
dc.description.abstract High volumes of data traffic along with bandwidth hungry applications, such as cloud computing and video on demand, is driving the core optical communication links closer and closer to their maximum capacity. The research community has clearly identifying the coming approach of the nonlinear Shannon limit for standard single mode fibre [1,2]. It is in this context that the work on modulation formats, contained in Chapter 3 of this thesis, was undertaken. The work investigates the proposed energy-efficient four-dimensional modulation formats. The work begins by studying a new visualisation technique for four dimensional modulation formats, akin to constellation diagrams. The work then carries out one of the first implementations of one such modulation format, polarisation-switched quadrature phase-shift keying (PS-QPSK). This thesis also studies two potential next-generation fibres, few-mode and hollow-core photonic band-gap fibre. Chapter 4 studies ways to experimentally quantify the nonlinearities in few-mode fibre and assess the potential benefits and limitations of such fibres. It carries out detailed experiments to measure the effects of stimulated Brillouin scattering, self-phase modulation and four-wave mixing and compares the results to numerical models, along with capacity limit calculations. Chapter 5 investigates hollow-core photonic band-gap fibre, where such fibres are predicted to have a low-loss minima at a wavelength of 2μm. To benefit from this potential low loss window requires the development of telecoms grade subsystems and components. The chapter will outline some of the development and characterisation of these components. The world's first wavelength division multiplexed (WDM) subsystem directly implemented at 2μm is presented along with WDM transmission over hollow-core photonic band-gap fibre at 2μm. References: [1]P. P. Mitra, J. B. Stark, Nature, 411, 1027-1030, 2001 [2] A. D. Ellis et al., JLT, 28, 423-433, 2010. en
dc.description.sponsorship Science Foundation Ireland (SFI Grant 06/IN/I969); European Commission (EU 7th Framework Programme under grant agreement 258033 (MODE-GAP)) en
dc.format.mimetype application/pdf en
dc.language.iso en en
dc.publisher University College Cork en
dc.rights © 2014, Naoise Mac Suibhne. en
dc.rights.uri http://creativecommons.org/licenses/by-nc-nd/3.0/ en
dc.subject Photonics en
dc.subject Fiber en
dc.subject PS QPSK en
dc.subject Optical communications en
dc.subject High speed communication en
dc.subject Optical fibre en
dc.subject Novel optical fibre en
dc.subject Optical fibre communications en
dc.subject Space division multiplexing en
dc.subject Hollow core fibre en
dc.subject Few mode fibre en
dc.subject Multimode fibre en
dc.subject Fibre nonlinearity en
dc.subject Optical modulation formats en
dc.subject Modulation formats en
dc.title High speed optical communication systems: From modulation formats to radically new fibres en
dc.type Doctoral thesis en
dc.type.qualificationlevel Doctoral en
dc.type.qualificationname PHD (Engineering) en
dc.internal.availability Full text available en
dc.check.info Please note that Chapter 1 (pp.1-9) is unavailable indefinitely due to a restriction requested by the author. en
dc.description.version Accepted Version
dc.contributor.funder Science Foundation Ireland en
dc.contributor.funder European Commission en
dc.description.status Not peer reviewed en
dc.internal.school Electrical and Electronic Engineering en
dc.internal.school Tyndall National Institute en
dc.check.reason This thesis contains third party copyrighted materials for which permission was not given for online use en
dc.check.opt-out Not applicable en
dc.thesis.opt-out false
dc.check.chapterOfThesis 1
dc.check.embargoformat E-thesis on CORA only en
ucc.workflow.supervisor a.morrison@ucc.ie
dc.internal.conferring Autumn Conferring 2014

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© 2014, Naoise Mac Suibhne. Except where otherwise noted, this item's license is described as © 2014, Naoise Mac Suibhne.
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