WDM-TDM NG-PON Power Budget Extension by Utilizing SOA in the Remote Node

A. Emsia, Q. T. Le, M. Malekizandi, D. Briggmann, Ivan B Djordjevic, F. Küppers

Research output: Contribution to journalArticle

5 Citations (Scopus)

Abstract

Today, even in access networks, data traffic is enormously increasing, a trend that causes existing passive optical network (PON) infrastructures to become bottlenecks in a tele- and data-communication infrastructure, which is aimed to be both broadband and seamless. Thus, two major objectives are considered for next-generation PONs (NG-PONs), i.e., first, bandwidth increase, and second, reach extension to reduce deployment costs. Here, we describe a new reach extension scheme that at the same time allows increasing the number of subscribers in the network. The amplification technique is based on a bidirectional semiconductor optical amplifier (SOA). It is shown that the extender configuration not only meets the bandwidth and budget requirements for NG-PONs but also remarkably improves them. Differential (quadrature) phase-shift keying (D(Q)PSK) signals are investigated in this paper. Hybrid wavelength-division multiplexing/time-division multiplexing (WDM/TDM) transmission up to 120-Gb/s downstream and 40-Gb/s upstream are experimentally demonstrated. The access budget of 33.4 dB is achieved at 10 Gb/s on every WDM channel in case of DPSK enabling a splitting ratio of 1:512 per wavelength. Furthermore, optical power budget of 40 dB is obtained when DQPSK is used, where a splitting ratio of 1024 per wavelength can be supported. Additionally, a cost-efficient chirped managed directly modulated laser scheme is proposed for DPSK signal generation in U.S. scenario enabling a high-power budget performance low-cost transmitter configuration, which appears suitable for NG-PON application. The proposed technique also alleviates nonlinear impairments [specifically, cross-phase modulation (XPM)], which appear in dense WDM transmission.

Original languageEnglish (US)
Article number7901310
JournalIEEE Photonics Journal
Volume6
Issue number2
DOIs
StatePublished - Apr 1 2014

Fingerprint

Time division multiplexing
Semiconductor optical amplifiers
Wavelength division multiplexing
light amplifiers
budgets
Power generation
Bandwidth
Costs
Wavelength
Passive optical networks
Quadrature phase shift keying
Phase modulation
bandwidth
costs
time division multiplexing
quadrature phase shift keying
Amplification
Transmitters
impairment
wavelength division multiplexing

Keywords

  • access networks
  • differentially phase-shift keying (DPSK)
  • Next-generation passive optical network (NG-PON)
  • semiconductor optical amplifier (SOA)
  • time-division multiplexing (TDM)
  • wavelength-division multiplexing (WDM)

ASJC Scopus subject areas

  • Electrical and Electronic Engineering
  • Atomic and Molecular Physics, and Optics

Cite this

WDM-TDM NG-PON Power Budget Extension by Utilizing SOA in the Remote Node. / Emsia, A.; Le, Q. T.; Malekizandi, M.; Briggmann, D.; Djordjevic, Ivan B; Küppers, F.

In: IEEE Photonics Journal, Vol. 6, No. 2, 7901310, 01.04.2014.

Research output: Contribution to journalArticle

Emsia, A. ; Le, Q. T. ; Malekizandi, M. ; Briggmann, D. ; Djordjevic, Ivan B ; Küppers, F. / WDM-TDM NG-PON Power Budget Extension by Utilizing SOA in the Remote Node. In: IEEE Photonics Journal. 2014 ; Vol. 6, No. 2.
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