Effect of optical fiber reflections on the performance of sub-carrier-multiplexed (SCM) lightwave systems

Silvello Betti; E. Bravi; M. Giaconi

doi:10.1117/12.321934

16 September 1998 Effect of optical fiber reflections on the performance of sub-carrier-multiplexed (SCM) lightwave systems

Silvello Betti, E. Bravi, M. Giaconi

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Proceedings Volume 3408, Broadband European Networks and Multimedia Services; (1998) https://doi.org/10.1117/12.321934
Event: SYBEN-Broadband European Networks and Electronic Image Capture and Publishing, 1998, Zurich, Switzerland

Abstract

Hybrid analog/digital Sub-Carrier-Multiplexing (SCM) technique is effective for broadband optical access networks designed for video broadcasting and interactive services. These systems are flexible in service management and channeling can be optimized to exploit the available bandwidth. A significant impairment in these systems is introduced by optical fiber multiple reflections, which give rise to an interferometric noise affecting the performance. So far, this effect has been evaluated assuming that the delay between transmitted and reflected optical signals is so large that such signals can be considered uncorrelated. In this paper, the interferometric noise due to optical fiber reflections is analyzed in SCM hybrid analog/digital systems independently of the position of the reflection points. The proposed model leads to a closed expression for the power spectral density of such noise source, which provides useful information for the system design and permits an accurate performance evaluation.

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Silvello Betti, E. Bravi, and M. Giaconi "Effect of optical fiber reflections on the performance of sub-carrier-multiplexed (SCM) lightwave systems", Proc. SPIE 3408, Broadband European Networks and Multimedia Services, (16 September 1998); https://doi.org/10.1117/12.321934

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KEYWORDS

Particle filters

Interferometry

Optical fibers

Modulation

Semiconductor lasers

Signal detection

Signal processing

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