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Optical Engineering

Wavelength reuse for uplink on dense wave-division multiplexing single-fiber ring for radio over fiber broadband systems with downlink signal generation in optical domain
Author(s): Ateeq Mumtaz; Muhammad Khawar Islam; Muhammad Zafrullah
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Paper Abstract

We have presented a single-fiber dense wave-division multiplexing (DWDM) ring scheme with wavelength reuse for uplink and optical signal generation for downlink. Instead of using a new laser for uplink, the wavelength already used for wavelength beating to generate the downlink signal in optical domain is reused for uplink. Algorithms for power optimization using Erbium-doped fiber amplifier, wavelength routing, and wavelength assignment are developed and simulated. The DWDM-radio over fiber scheme reusing the wavelength can support the data rate in the range of 1 Gbps. Fifteen remote antenna units (RAUs) are simulated in this scheme; however, these can be increased by adding more wavelengths. The proposed scheme simplifies the architecture or RAUs, decreases the overall cost while enhancing the bandwidth and operational flexibility of radio over fiber systems.

Paper Details

Date Published: 1 October 2011
PDF: 9 pages
Opt. Eng. 50(10) 105002 doi: 10.1117/1.3631833
Published in: Optical Engineering Volume 50, Issue 10
Show Author Affiliations
Ateeq Mumtaz, Univ. of Engineering & Technology Taxila (Pakistan)
Muhammad Khawar Islam, Univ. of Engineering & Technology Taxila (Pakistan)
Muhammad Zafrullah, Univ. of Engineering & Technology Taxila (Pakistan)

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