3. Optical Layer

  1. Dave Hood and
  2. Elmar Trojer

Published Online: 6 JUL 2012

DOI: 10.1002/9781118156070.ch3

Gigabit-Capable Passive Optical Networks

Gigabit-Capable Passive Optical Networks

How to Cite

Hood, D. and Trojer, E. (2012) Optical Layer, in Gigabit-Capable Passive Optical Networks, John Wiley & Sons, Inc., Hoboken, NJ, USA. doi: 10.1002/9781118156070.ch3

Publication History

  1. Published Online: 6 JUL 2012
  2. Published Print: 21 MAR 2012

ISBN Information

Print ISBN: 9780470936870

Online ISBN: 9781118156070



  • erbium-doped fiber amplifiers (EDFAs);
  • gigabit-capable passive optical networks (G-PON);
  • optical layer;
  • photodetectors;
  • semiconductor optical amplifiers (SOAs);
  • wavelength division multiplex (WDM)


This chapter discusses light propagation phenomena and optical components in passive optical network (PONs) including fiber, splices and connectors, passive power splitters and wavelength division multiplex (WDM) devices. It then focuses on optical budgets and coexistence of gigabit-capable passive optical networks (G-PON) and XG-PON. The chapter talks about transceivers such as lasers, drivers, photodetectors, optical amplifiers, receiver sensitivity, threshold determination and clock recovery. The chapter finally focuses on reach extension including semiconductor optical amplifiers (SOAs), erbium-doped fiber amplifiers (EDFAs), optical-electrical-optical repeaters and optical amplifier-based repeaters. The optical budget determines the physical performance of a PON in terms of the maximum number of ONUs supported and the reach of the farthest ONU from the OLT.

Controlled Vocabulary Terms

erbium-doped fiber amplifiers; passive optical networks; photodetectors; semiconductor optical amplifiers; wavelength division multiplexing