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Proceedings Paper

Radio-over-fiber using spectrum sliced optical links
Author(s): John E. Mitchell
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Paper Abstract

Radio Over Fibre (RoF) techniques have received a great deal of interest in recent years with a number of manufacturers now offering production RoF systems. However, in many cases component cost is still a critical limiting factor to the wide spread adoption of the technology. In this paper we evaluate the performance of Wavelength Division Multiplexed (WDM) RoF links constructed using spectrum sliced broadband sources as the optical transmitter. The main limitation in spectrum sliced system is the excess beat noise produced by the incoherent nature of the optical source. For digital transmission links this has a severe effect on the achievable transmission bit rate as the signal-to-noise ratio (SNR) of such limits is approximately the ratio of the optical slice bandwidth to electrical bandwidth. In radio over fibre systems, due to the relatively narrowband nature of most radio signals, it is common that although the radio signal may be at a high frequency, its electrical bandwidth is relatively narrow allow for an acceptable SNR to be achieved with relatively narrow optical slice widths. This paper will define the performance limits of such systems, demonstrating that acceptable transmission of radio frequency (RF) signals is possible over fibre distances typical in access networks.

Paper Details

Date Published: 1 September 2004
PDF: 8 pages
Proc. SPIE 5466, Microwave and Terahertz Photonics, (1 September 2004); doi: 10.1117/12.548952
Show Author Affiliations
John E. Mitchell, Univ. College London (United Kingdom)

Published in SPIE Proceedings Vol. 5466:
Microwave and Terahertz Photonics
Andreas Stohr; Dieter Jager; Stavros Iezekiel, Editor(s)

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