Optical-router-based dynamically reconfigurable photonic access network

R. Roy

Research output: ThesisPhD Thesis - Research UT, graduation UTAcademic

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Abstract

The Broadband photonics (BBP) project under the Freeband consortium of projects investigated the design of a dynamically reconfigurable photonic access network. Access networks form a key link in ensuring optimal bandwidth to the end user without which any improvements deeper in the network in the aggregation or core segments are mitigated. Optical fiber deployment in the access are a natural choice as the bandwidth demands increase and Passive Optical Networks (PONs) form a preferred way of implementing fiber deployments. PONs have a logical Point to Multi-Point (P2MP) topology where in the downstream, the Optical Line Termination (OLT) broadcasts to all Optical Network Units (ONUs) while in the upstream, it is a many-toone transmission and is contention based. Time Division Multiplexing (TDM) access is one way of arbitration and in this thesis a qualitative analysis and comparison of the leading TDM based PON standards- EPON and GPON is presented. In traditional PONs, the average bandwidth available per user depends on the number of ONUs supported by a single OLT. Typically the OLT-ONU association is fixed. The BBP network concept extends the view of a fiber plant deployment to a stack of logical PONs where multiple wavelength pairs are used to support a number of "logical" PONs. In this network, a headend based OLT transmits the downstream data by modulating a C-Band, Dense Wavelength Division Multiplexed (DWDM) laser. In addition it transmits the light of a Continuous Wave (CW) DWDM laser, also in the C-Band, which is modulated with data by a Reflective Semiconductor Optical Amplifier (RSOA) in an ONU and used for upstream communication. The ONUs are thus wavelength agnostic. The OLT-ONU association is thus dynamic and depends on the wavelength pair added/dropped towards the ONU. The bandwidth availability to an end user can be optimised on an inter-PON basis. The research work focuses on the techniques to realise the bandwidth optimisation using Linear Programming techniques and describes the service delivery architecture that can be realised to ensure an optical service delivery to the end user using conventional protocols of operation. The perspective views of the network from a data to control plane operation are also presented.
Original languageEnglish
Awarding Institution
  • University of Twente
Supervisors/Advisors
  • van Etten, Wim, Supervisor
Thesis sponsors
Award date8 Jan 2014
Place of PublicationEnschede
Publisher
Print ISBNs978-94-6191-428-6
DOIs
Publication statusPublished - 8 Jan 2014

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Passive optical networks
Fiber optic networks
Routers
Photonics
Bandwidth
Wavelength
Time division multiplexing
Light amplifiers
Fibers
Lasers
Linear programming
Telecommunication links
Optical fibers
Agglomeration
Topology
Availability
Communication

Keywords

  • EWI-24459
  • IR-94004
  • METIS-308858

Cite this

Roy, R.. / Optical-router-based dynamically reconfigurable photonic access network. Enschede : Universiteit Twente, 2014. 164 p.
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title = "Optical-router-based dynamically reconfigurable photonic access network",
abstract = "The Broadband photonics (BBP) project under the Freeband consortium of projects investigated the design of a dynamically reconfigurable photonic access network. Access networks form a key link in ensuring optimal bandwidth to the end user without which any improvements deeper in the network in the aggregation or core segments are mitigated. Optical fiber deployment in the access are a natural choice as the bandwidth demands increase and Passive Optical Networks (PONs) form a preferred way of implementing fiber deployments. PONs have a logical Point to Multi-Point (P2MP) topology where in the downstream, the Optical Line Termination (OLT) broadcasts to all Optical Network Units (ONUs) while in the upstream, it is a many-toone transmission and is contention based. Time Division Multiplexing (TDM) access is one way of arbitration and in this thesis a qualitative analysis and comparison of the leading TDM based PON standards- EPON and GPON is presented. In traditional PONs, the average bandwidth available per user depends on the number of ONUs supported by a single OLT. Typically the OLT-ONU association is fixed. The BBP network concept extends the view of a fiber plant deployment to a stack of logical PONs where multiple wavelength pairs are used to support a number of {"}logical{"} PONs. In this network, a headend based OLT transmits the downstream data by modulating a C-Band, Dense Wavelength Division Multiplexed (DWDM) laser. In addition it transmits the light of a Continuous Wave (CW) DWDM laser, also in the C-Band, which is modulated with data by a Reflective Semiconductor Optical Amplifier (RSOA) in an ONU and used for upstream communication. The ONUs are thus wavelength agnostic. The OLT-ONU association is thus dynamic and depends on the wavelength pair added/dropped towards the ONU. The bandwidth availability to an end user can be optimised on an inter-PON basis. The research work focuses on the techniques to realise the bandwidth optimisation using Linear Programming techniques and describes the service delivery architecture that can be realised to ensure an optical service delivery to the end user using conventional protocols of operation. The perspective views of the network from a data to control plane operation are also presented.",
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year = "2014",
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Optical-router-based dynamically reconfigurable photonic access network. / Roy, R.

Enschede : Universiteit Twente, 2014. 164 p.

Research output: ThesisPhD Thesis - Research UT, graduation UTAcademic

TY - THES

T1 - Optical-router-based dynamically reconfigurable photonic access network

AU - Roy, R.

PY - 2014/1/8

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N2 - The Broadband photonics (BBP) project under the Freeband consortium of projects investigated the design of a dynamically reconfigurable photonic access network. Access networks form a key link in ensuring optimal bandwidth to the end user without which any improvements deeper in the network in the aggregation or core segments are mitigated. Optical fiber deployment in the access are a natural choice as the bandwidth demands increase and Passive Optical Networks (PONs) form a preferred way of implementing fiber deployments. PONs have a logical Point to Multi-Point (P2MP) topology where in the downstream, the Optical Line Termination (OLT) broadcasts to all Optical Network Units (ONUs) while in the upstream, it is a many-toone transmission and is contention based. Time Division Multiplexing (TDM) access is one way of arbitration and in this thesis a qualitative analysis and comparison of the leading TDM based PON standards- EPON and GPON is presented. In traditional PONs, the average bandwidth available per user depends on the number of ONUs supported by a single OLT. Typically the OLT-ONU association is fixed. The BBP network concept extends the view of a fiber plant deployment to a stack of logical PONs where multiple wavelength pairs are used to support a number of "logical" PONs. In this network, a headend based OLT transmits the downstream data by modulating a C-Band, Dense Wavelength Division Multiplexed (DWDM) laser. In addition it transmits the light of a Continuous Wave (CW) DWDM laser, also in the C-Band, which is modulated with data by a Reflective Semiconductor Optical Amplifier (RSOA) in an ONU and used for upstream communication. The ONUs are thus wavelength agnostic. The OLT-ONU association is thus dynamic and depends on the wavelength pair added/dropped towards the ONU. The bandwidth availability to an end user can be optimised on an inter-PON basis. The research work focuses on the techniques to realise the bandwidth optimisation using Linear Programming techniques and describes the service delivery architecture that can be realised to ensure an optical service delivery to the end user using conventional protocols of operation. The perspective views of the network from a data to control plane operation are also presented.

AB - The Broadband photonics (BBP) project under the Freeband consortium of projects investigated the design of a dynamically reconfigurable photonic access network. Access networks form a key link in ensuring optimal bandwidth to the end user without which any improvements deeper in the network in the aggregation or core segments are mitigated. Optical fiber deployment in the access are a natural choice as the bandwidth demands increase and Passive Optical Networks (PONs) form a preferred way of implementing fiber deployments. PONs have a logical Point to Multi-Point (P2MP) topology where in the downstream, the Optical Line Termination (OLT) broadcasts to all Optical Network Units (ONUs) while in the upstream, it is a many-toone transmission and is contention based. Time Division Multiplexing (TDM) access is one way of arbitration and in this thesis a qualitative analysis and comparison of the leading TDM based PON standards- EPON and GPON is presented. In traditional PONs, the average bandwidth available per user depends on the number of ONUs supported by a single OLT. Typically the OLT-ONU association is fixed. The BBP network concept extends the view of a fiber plant deployment to a stack of logical PONs where multiple wavelength pairs are used to support a number of "logical" PONs. In this network, a headend based OLT transmits the downstream data by modulating a C-Band, Dense Wavelength Division Multiplexed (DWDM) laser. In addition it transmits the light of a Continuous Wave (CW) DWDM laser, also in the C-Band, which is modulated with data by a Reflective Semiconductor Optical Amplifier (RSOA) in an ONU and used for upstream communication. The ONUs are thus wavelength agnostic. The OLT-ONU association is thus dynamic and depends on the wavelength pair added/dropped towards the ONU. The bandwidth availability to an end user can be optimised on an inter-PON basis. The research work focuses on the techniques to realise the bandwidth optimisation using Linear Programming techniques and describes the service delivery architecture that can be realised to ensure an optical service delivery to the end user using conventional protocols of operation. The perspective views of the network from a data to control plane operation are also presented.

KW - EWI-24459

KW - IR-94004

KW - METIS-308858

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DO - 10.3990/1.9789461914286

M3 - PhD Thesis - Research UT, graduation UT

SN - 978-94-6191-428-6

PB - Universiteit Twente

CY - Enschede

ER -