High Performance, Low Cost, Colorless ONU for WDM-PON

Urata, R.; Lam, Cedric F.; Liu, Hong; Johnson, Chris

doi:10.1364/nfoec.2012.nth3e.4

Cited by 19 publications

(9 citation statements)

References 10 publications

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“…As it was shown in [1], the maximum SSD for residential users (FTTB) is eight hours. For the brownfield scenario the maximal SSD thus is eight hours as the OLT port can be put to sleep only if all the corresponding ONUs are also in sleep mode.…”

Section: B Brownfieldmentioning

confidence: 96%

“…INTRODUCTION ccess networks are rapidly evolving to accommodate larger and more diverse types of terminals, services, bandwidth demands and higher reliability requirements. Further, advancements in the underlying technology are allowing for a decrease of components costs (e.g., colorless Optical Network Units (ONUs) [1]) and an increase of the passive reach. Consequently, operators are considering the migration of existing access networks (e.g., combining optical fiber and copper or using GPON) to new architectures in order to support potential new requirements (e.g.…”

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confidence: 99%

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Energy Consumption and Reliability Performance of Survivable Passive Optical Converged Networks: Public ITS Case Study

Grigoreva

Wong

Furdek

et al. 2017

J. Opt. Commun. Netw.

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Abstract-Access networks are evolving fast by increasing their capacity and coverage area, coping with a larger number of users and variety of terminals. Operators aim at keeping high network performance and quality of service but limiting their capital and operational expenditures by e.g., minimizing investments and energy consumption using power saving at the network components. To address these challenges this paper evaluates energy consumption, connection availability and failure detection time of three protection schemes applicable for converged access networks: Disjoint Fiber Protection, Energy-Efficient Disjoint Fiber Protection, and Reflective Disjoint Fiber Protection. The schemes are assessed by a case study considering public Intelligent Transport System (ITS). The studied ITS deploys a Dedicated Short Range Communications (DSRC) Radio Access Network connected to the service server through a protected passive access network. Comparison with unprotected architecture shows that the Reflective Disjoint Fiber Protection offers low energy consumption and high connection availability, while it significantly reduces the failure detection time and hence, the connection interruption time.

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Section: B Brownfieldmentioning

confidence: 96%

mentioning

confidence: 99%

Energy Consumption and Reliability Performance of Survivable Passive Optical Converged Networks: Public ITS Case Study

Grigoreva

Wong

Furdek

et al. 2017

J. Opt. Commun. Netw.

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“…A number of multiplexing techniques for increasing the data capacity through a single optical fiber have been proposed comprising wavelength [11,12], polarization [13,14], phase [14], amplitude [15,16] and time dimensions [17,18]. An elegant approach that has attracted significant attention is mode division multiplexing (MDM) [19], realized by combining or separating modes at the multiplexer and demultiplexer for transmitting independent data streams.…”

Section: Introductionmentioning

confidence: 99%

5 × 5 25 Gbit/s WDM-MDM

Fazea

Amphawan²

2015

Journal of Optical Communications

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Wavelength-division multiplexed-passive optical network (WDM-PON) is a revolutionary high-capacity and scalable broadband access network. This paper capitalizes on Laguerre-Gaussian (LG) modes to reduce modal dispersion and increase data capacity. A data rate of 25 Gbit/s is attained for a multimode fiber link by multiplexing five LG modes on five wavelengths centered at 1,550.12 nm for a distance up to 800 m.

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“…To implement a colorless ONU, several methods were designed. [13][14][15] However, once the colorless ONU is introduced, Brillouin backscattering (BB) 16,17 becomes worse. To solve the aforementioned problems, these two systems are established via VPI simulators 18 as follows: (1) we analyze the influence on the system 1 performances, which mainly includes the BER and power penalty, and a lowpower penalty is guaranteed without degrading the BER of system 1, and (2) using an empty carrier generated by an OLT along with the downstream signal for upstream transmission, we achieve a colorless ONU in system 2.…”

Section: Introductionmentioning

confidence: 99%

System performance analysis of time-division-multiplexing passive optical network using directly modulated lasers or colorless optical network units

Gong¹,

Guo²,

Liu³

et al. 2015

Opt. Eng

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Abstract. As a promising technology for broadband communication, passive optical network (PON) has been deployed to support the last-mile broadband access network. In particular, time-division-multiplexing PON (TDM-PON) has been widely used owing to its mature technology and low cost. To practically implement TDM-PONs, the combination of intensity modulation and direct detection is a very promising technique because it achieves cost reduction in system installation and maintenance. However, the current intensity-modulation and direct-detection TDM-PON still suffers from some problems, which mainly include a high-power penalty, detrimental Brillouin backscattering (BB), and so on. Thus, using directly modulated lasers (DMLs) and colorless optical network units (ONUs), respectively, two intensity-modulation and direct-detection TDM-PON architectures are proposed. Using VPI (an optical simulation software developed by VPIphotonics company) simulators, we first analyze the influences on DML-based intensity-modulation and direct-detection TDM-PON (system 1) performances, which mainly include bit error rate (BER) and power penalty. Next, the BB effect on the BER of the intensity-modulation and direct-detection TDM-PON that uses colorless ONUs (system 2) is also investigated. The simulation results show that: (1) a low-power penalty is achieved without degrading the BER of system 1, and (2) the BB can be effectively reduced using phase modulation of the optical carrier in system 2. © The Authors.Published by SPIE under a Creative Commons Attribution 3.0 Unported License. Distribution or reproduction of this work in whole or in part requires full attribution of the original publication, including its DOI.

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High Performance, Low Cost, Colorless ONU for WDM-PON

Abstract: Abstract:We give an overview of key technologies for realizing WDM-PON. In particular, we highlight promising developments and directions in widely tunable laser technologies for achieving a high performance, colorless ONU at the cost points required for access networks.

Cited by 19 publications

References 10 publications

Energy Consumption and Reliability Performance of Survivable Passive Optical Converged Networks: Public ITS Case Study

Energy Consumption and Reliability Performance of Survivable Passive Optical Converged Networks: Public ITS Case Study

5 × 5 25 Gbit/s WDM-MDM

System performance analysis of time-division-multiplexing passive optical network using directly modulated lasers or colorless optical network units

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