Real-time monitoring and fault locating using amplified spontaneous emission noise reflection for tree-structured Ethernet passive optical networks

Nani Fadzlina Naim, Mohd Syuhaimi Ab Rahman, Nur Hasiba Kamaruddin, Ahmad Ashrif A Bakar

Research output: Contribution to journalArticle

5 Citations (Scopus)

Abstract

Nowadays, optical networks are becoming dense while detecting faulty branches in the tree-structured networks has become problematic. Conventional methods are inconvenient as they require an engineer to visit the failure site to check the optical fiber using an optical time-domain reflectometer. An innovative monitoring technique for treestructured network topology in Ethernet passive optical networks (EPONs) by using the erbium-doped fiber amplifier to amplify the traffic signal is demonstrated, and in the meantime, a residual amplified spontaneous emission spectrum is used as the input signal to monitor the optical cable from the central office. Fiber Bragg gratings with distinct center wavelengths are employed to reflect the monitoring signals. Faulty branches of the tree-structured EPONs can be identified using a simple and low-cost receiver. We will show that this technique is capable of providing monitoring range up to 32 optical network units using a power meter with a sensitivity of 65 dBm while maintaining the bit error rate of 1013.

Original languageEnglish
Article number130835
JournalOptical Engineering
Volume52
Issue number9
DOIs
Publication statusPublished - Sep 2013

Fingerprint

Passive optical networks
Ethernet
Spontaneous emission
spontaneous emission
Fiber optic networks
Monitoring
Traffic signals
Optical cables
Erbium doped fiber amplifiers
Reflectometers
Fiber Bragg gratings
Bit error rate
Optical fibers
Topology
Engineers
Wavelength
fibers
reflectometers
bit error rate
erbium

Keywords

  • Amplified spontaneous emission
  • Erbium-doped fiber amplifier
  • Ethernet passive optical networks
  • Fiber Bragg grating
  • Monitoring

ASJC Scopus subject areas

  • Atomic and Molecular Physics, and Optics
  • Engineering(all)

Cite this

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title = "Real-time monitoring and fault locating using amplified spontaneous emission noise reflection for tree-structured Ethernet passive optical networks",
abstract = "Nowadays, optical networks are becoming dense while detecting faulty branches in the tree-structured networks has become problematic. Conventional methods are inconvenient as they require an engineer to visit the failure site to check the optical fiber using an optical time-domain reflectometer. An innovative monitoring technique for treestructured network topology in Ethernet passive optical networks (EPONs) by using the erbium-doped fiber amplifier to amplify the traffic signal is demonstrated, and in the meantime, a residual amplified spontaneous emission spectrum is used as the input signal to monitor the optical cable from the central office. Fiber Bragg gratings with distinct center wavelengths are employed to reflect the monitoring signals. Faulty branches of the tree-structured EPONs can be identified using a simple and low-cost receiver. We will show that this technique is capable of providing monitoring range up to 32 optical network units using a power meter with a sensitivity of 65 dBm while maintaining the bit error rate of 1013.",
keywords = "Amplified spontaneous emission, Erbium-doped fiber amplifier, Ethernet passive optical networks, Fiber Bragg grating, Monitoring",
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AU - Naim, Nani Fadzlina

AU - Ab Rahman, Mohd Syuhaimi

AU - Kamaruddin, Nur Hasiba

AU - A Bakar, Ahmad Ashrif

PY - 2013/9

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AB - Nowadays, optical networks are becoming dense while detecting faulty branches in the tree-structured networks has become problematic. Conventional methods are inconvenient as they require an engineer to visit the failure site to check the optical fiber using an optical time-domain reflectometer. An innovative monitoring technique for treestructured network topology in Ethernet passive optical networks (EPONs) by using the erbium-doped fiber amplifier to amplify the traffic signal is demonstrated, and in the meantime, a residual amplified spontaneous emission spectrum is used as the input signal to monitor the optical cable from the central office. Fiber Bragg gratings with distinct center wavelengths are employed to reflect the monitoring signals. Faulty branches of the tree-structured EPONs can be identified using a simple and low-cost receiver. We will show that this technique is capable of providing monitoring range up to 32 optical network units using a power meter with a sensitivity of 65 dBm while maintaining the bit error rate of 1013.

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